diff --git a/cache/api.github.com/v3/actions/artifacts/index.html b/cache/api.github.com/v3/actions/artifacts/index.html
index 8e8974bfcc..604a1e12e9 100644
--- a/cache/api.github.com/v3/actions/artifacts/index.html
+++ b/cache/api.github.com/v3/actions/artifacts/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/actions/index.html b/cache/api.github.com/v3/actions/index.html
index 6022217b65..ccc6eff2c0 100644
--- a/cache/api.github.com/v3/actions/index.html
+++ b/cache/api.github.com/v3/actions/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/actions/secrets/index.html b/cache/api.github.com/v3/actions/secrets/index.html
index 76aadf016a..4ff06a7b6f 100644
--- a/cache/api.github.com/v3/actions/secrets/index.html
+++ b/cache/api.github.com/v3/actions/secrets/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/actions/self-hosted-runners/index.html b/cache/api.github.com/v3/actions/self-hosted-runners/index.html
index fde142e615..8e5e828c34 100644
--- a/cache/api.github.com/v3/actions/self-hosted-runners/index.html
+++ b/cache/api.github.com/v3/actions/self-hosted-runners/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/actions/workflow-jobs/index.html b/cache/api.github.com/v3/actions/workflow-jobs/index.html
index 31273d4ae6..13da5b5953 100644
--- a/cache/api.github.com/v3/actions/workflow-jobs/index.html
+++ b/cache/api.github.com/v3/actions/workflow-jobs/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/actions/workflow-runs/index.html b/cache/api.github.com/v3/actions/workflow-runs/index.html
index d67bddf778..d5700b4740 100644
--- a/cache/api.github.com/v3/actions/workflow-runs/index.html
+++ b/cache/api.github.com/v3/actions/workflow-runs/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/actions/workflows/index.html b/cache/api.github.com/v3/actions/workflows/index.html
index d57f3a0790..df6261261c 100644
--- a/cache/api.github.com/v3/actions/workflows/index.html
+++ b/cache/api.github.com/v3/actions/workflows/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/activity/event_types/index.html b/cache/api.github.com/v3/activity/event_types/index.html
index e41e29cbbf..29ab32b5d0 100644
--- a/cache/api.github.com/v3/activity/event_types/index.html
+++ b/cache/api.github.com/v3/activity/event_types/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/activity/events/index.html b/cache/api.github.com/v3/activity/events/index.html
index 1f0f8eff50..195deec01c 100644
--- a/cache/api.github.com/v3/activity/events/index.html
+++ b/cache/api.github.com/v3/activity/events/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/activity/feeds/index.html b/cache/api.github.com/v3/activity/feeds/index.html
index 1a82d094e1..c2bf6339d3 100644
--- a/cache/api.github.com/v3/activity/feeds/index.html
+++ b/cache/api.github.com/v3/activity/feeds/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/activity/index.html b/cache/api.github.com/v3/activity/index.html
index a55232bfdf..8633289b73 100644
--- a/cache/api.github.com/v3/activity/index.html
+++ b/cache/api.github.com/v3/activity/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/activity/notifications/index.html b/cache/api.github.com/v3/activity/notifications/index.html
index ffaf6ae8cd..c0f1dee25d 100644
--- a/cache/api.github.com/v3/activity/notifications/index.html
+++ b/cache/api.github.com/v3/activity/notifications/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/activity/starring/index.html b/cache/api.github.com/v3/activity/starring/index.html
index 1613dd367e..a6926b3be2 100644
--- a/cache/api.github.com/v3/activity/starring/index.html
+++ b/cache/api.github.com/v3/activity/starring/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
@@ -624,6 +626,7 @@ <h3>
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     </span><span class="nt">"allow_squash_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+    </span><span class="nt">"delete_branch_on_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">"allow_merge_commit"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">"subscribers_count"</span><span class="p">:</span><span class="w"> </span><span class="mi">42</span><span class="p">,</span><span class="w">
     </span><span class="nt">"network_count"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="w">
@@ -755,6 +758,7 @@ <h3>
       </span><span class="nt">"template_repository"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="p">,</span><span class="w">
       </span><span class="nt">"temp_clone_token"</span><span class="p">:</span><span class="w"> </span><span class="s2">"ABTLWHOULUVAXGTRYU7OC2876QJ2O"</span><span class="p">,</span><span class="w">
       </span><span class="nt">"allow_squash_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+      </span><span class="nt">"delete_branch_on_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
       </span><span class="nt">"allow_merge_commit"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
       </span><span class="nt">"subscribers_count"</span><span class="p">:</span><span class="w"> </span><span class="mi">42</span><span class="p">,</span><span class="w">
       </span><span class="nt">"network_count"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="w">
@@ -915,6 +919,7 @@ <h3>
     </span><span class="nt">"template_repository"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="p">,</span><span class="w">
     </span><span class="nt">"temp_clone_token"</span><span class="p">:</span><span class="w"> </span><span class="s2">"ABTLWHOULUVAXGTRYU7OC2876QJ2O"</span><span class="p">,</span><span class="w">
     </span><span class="nt">"allow_squash_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+    </span><span class="nt">"delete_branch_on_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">"allow_merge_commit"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">"subscribers_count"</span><span class="p">:</span><span class="w"> </span><span class="mi">42</span><span class="p">,</span><span class="w">
     </span><span class="nt">"network_count"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="w">
@@ -1046,6 +1051,7 @@ <h3>
       </span><span class="nt">"template_repository"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="p">,</span><span class="w">
       </span><span class="nt">"temp_clone_token"</span><span class="p">:</span><span class="w"> </span><span class="s2">"ABTLWHOULUVAXGTRYU7OC2876QJ2O"</span><span class="p">,</span><span class="w">
       </span><span class="nt">"allow_squash_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+      </span><span class="nt">"delete_branch_on_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
       </span><span class="nt">"allow_merge_commit"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
       </span><span class="nt">"subscribers_count"</span><span class="p">:</span><span class="w"> </span><span class="mi">42</span><span class="p">,</span><span class="w">
       </span><span class="nt">"network_count"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="w">
diff --git a/cache/api.github.com/v3/activity/starring/list-repositories-starred-by-a-user.html b/cache/api.github.com/v3/activity/starring/list-repositories-starred-by-a-user.html
index 4e31e50b91..2d98bbd33b 100644
--- a/cache/api.github.com/v3/activity/starring/list-repositories-starred-by-a-user.html
+++ b/cache/api.github.com/v3/activity/starring/list-repositories-starred-by-a-user.html
@@ -142,6 +142,7 @@ <h3>
     </span><span class="nt">&quot;template_repository&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="p">,</span><span class="w">
     </span><span class="nt">&quot;temp_clone_token&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;ABTLWHOULUVAXGTRYU7OC2876QJ2O&quot;</span><span class="p">,</span><span class="w">
     </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+    </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">&quot;subscribers_count&quot;</span><span class="p">:</span><span class="w"> </span><span class="mi">42</span><span class="p">,</span><span class="w">
     </span><span class="nt">&quot;network_count&quot;</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="w">
@@ -266,6 +267,7 @@ <h3>
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       </span><span class="nt">&quot;temp_clone_token&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;ABTLWHOULUVAXGTRYU7OC2876QJ2O&quot;</span><span class="p">,</span><span class="w">
       </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+      </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
       </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
       </span><span class="nt">&quot;subscribers_count&quot;</span><span class="p">:</span><span class="w"> </span><span class="mi">42</span><span class="p">,</span><span class="w">
       </span><span class="nt">&quot;network_count&quot;</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="w">
diff --git a/cache/api.github.com/v3/activity/starring/list-repositories-starred-by-the-authenticated-user.html b/cache/api.github.com/v3/activity/starring/list-repositories-starred-by-the-authenticated-user.html
index 1ae78e7d55..edab1e987c 100644
--- a/cache/api.github.com/v3/activity/starring/list-repositories-starred-by-the-authenticated-user.html
+++ b/cache/api.github.com/v3/activity/starring/list-repositories-starred-by-the-authenticated-user.html
@@ -141,6 +141,7 @@ <h3>
     </span><span class="nt">&quot;template_repository&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="p">,</span><span class="w">
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     </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+    </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">&quot;subscribers_count&quot;</span><span class="p">:</span><span class="w"> </span><span class="mi">42</span><span class="p">,</span><span class="w">
     </span><span class="nt">&quot;network_count&quot;</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="w">
@@ -265,6 +266,7 @@ <h3>
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       </span><span class="nt">&quot;temp_clone_token&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;ABTLWHOULUVAXGTRYU7OC2876QJ2O&quot;</span><span class="p">,</span><span class="w">
       </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+      </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
       </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
       </span><span class="nt">&quot;subscribers_count&quot;</span><span class="p">:</span><span class="w"> </span><span class="mi">42</span><span class="p">,</span><span class="w">
       </span><span class="nt">&quot;network_count&quot;</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="w">
diff --git a/cache/api.github.com/v3/activity/watching/index.html b/cache/api.github.com/v3/activity/watching/index.html
index 08fe3cc473..badc836a2d 100644
--- a/cache/api.github.com/v3/activity/watching/index.html
+++ b/cache/api.github.com/v3/activity/watching/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
@@ -543,6 +545,7 @@ <h3>
     </span><span class="p">},</span><span class="w">
     </span><span class="nt">"template_repository"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="p">,</span><span class="w">
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+    </span><span class="nt">"delete_branch_on_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">"subscribers_count"</span><span class="p">:</span><span class="w"> </span><span class="mi">42</span><span class="p">,</span><span class="w">
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     </span><span class="nt">"license"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
@@ -679,6 +682,7 @@ <h3>
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diff --git a/cache/api.github.com/v3/activity/watching/list-repositories-watched-by-a-user.html b/cache/api.github.com/v3/activity/watching/list-repositories-watched-by-a-user.html
index b21f16d58b..51fde853f7 100644
--- a/cache/api.github.com/v3/activity/watching/list-repositories-watched-by-a-user.html
+++ b/cache/api.github.com/v3/activity/watching/list-repositories-watched-by-a-user.html
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diff --git a/cache/api.github.com/v3/activity/watching/list-repositories-watched-by-the-authenticated-user.html b/cache/api.github.com/v3/activity/watching/list-repositories-watched-by-the-authenticated-user.html
index 8ee128799d..964c0c677a 100644
--- a/cache/api.github.com/v3/activity/watching/list-repositories-watched-by-the-authenticated-user.html
+++ b/cache/api.github.com/v3/activity/watching/list-repositories-watched-by-the-authenticated-user.html
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index ec1087cc25..1a930f79e4 100644
--- a/cache/api.github.com/v3/apps/available-endpoints/index.html
+++ b/cache/api.github.com/v3/apps/available-endpoints/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/apps/create-an-installation-access-token-for-an-app.html b/cache/api.github.com/v3/apps/create-an-installation-access-token-for-an-app.html
index b64200dca8..5b755d96d5 100644
--- a/cache/api.github.com/v3/apps/create-an-installation-access-token-for-an-app.html
+++ b/cache/api.github.com/v3/apps/create-an-installation-access-token-for-an-app.html
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diff --git a/cache/api.github.com/v3/apps/index.html b/cache/api.github.com/v3/apps/index.html
index 37ac4fe75d..b1c5d619cd 100644
--- a/cache/api.github.com/v3/apps/index.html
+++ b/cache/api.github.com/v3/apps/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
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       </span><span class="nt">"allow_squash_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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index 41ebead830..18d5670fe2 100644
--- a/cache/api.github.com/v3/apps/installations/index.html
+++ b/cache/api.github.com/v3/apps/installations/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
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diff --git a/cache/api.github.com/v3/apps/installations/list-repositories-accessible-to-the-app-installation.html b/cache/api.github.com/v3/apps/installations/list-repositories-accessible-to-the-app-installation.html
index cee97e7703..b263fe55b1 100644
--- a/cache/api.github.com/v3/apps/installations/list-repositories-accessible-to-the-app-installation.html
+++ b/cache/api.github.com/v3/apps/installations/list-repositories-accessible-to-the-app-installation.html
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diff --git a/cache/api.github.com/v3/apps/installations/list-repositories-accessible-to-the-user-access-token.html b/cache/api.github.com/v3/apps/installations/list-repositories-accessible-to-the-user-access-token.html
index ead4f78677..9acb270ff3 100644
--- a/cache/api.github.com/v3/apps/installations/list-repositories-accessible-to-the-user-access-token.html
+++ b/cache/api.github.com/v3/apps/installations/list-repositories-accessible-to-the-user-access-token.html
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diff --git a/cache/api.github.com/v3/apps/marketplace/index.html b/cache/api.github.com/v3/apps/marketplace/index.html
index ec799dbe56..2dd66d029b 100644
--- a/cache/api.github.com/v3/apps/marketplace/index.html
+++ b/cache/api.github.com/v3/apps/marketplace/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/apps/oauth_applications/check-an-authorization.html b/cache/api.github.com/v3/apps/oauth_applications/check-an-authorization.html
index 631a8eb3a7..2c716a7238 100644
--- a/cache/api.github.com/v3/apps/oauth_applications/check-an-authorization.html
+++ b/cache/api.github.com/v3/apps/oauth_applications/check-an-authorization.html
@@ -2,7 +2,7 @@ <h2>
 <a id="check-an-authorization" class="anchor" href="#check-an-authorization" aria-hidden="true"><span aria-hidden="true" class="octicon octicon-link"></span></a>Check an authorization</h2>
 <div class="alert warning">
 
-<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
+<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
 
 </div>
 <p>OAuth applications can use a special API method for checking OAuth token validity without exceeding the normal rate limits for failed login attempts. Authentication works differently with this particular endpoint.  You must use <a href="/v3/auth#basic-authentication">Basic Authentication</a> when accessing this endpoint, using the OAuth application&apos;s <code>client_id</code> and <code>client_secret</code> as the username and password. Invalid tokens will return <code>404 NOT FOUND</code>.</p>
diff --git a/cache/api.github.com/v3/apps/oauth_applications/index.html b/cache/api.github.com/v3/apps/oauth_applications/index.html
index 4d781b512c..02b021725a 100644
--- a/cache/api.github.com/v3/apps/oauth_applications/index.html
+++ b/cache/api.github.com/v3/apps/oauth_applications/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
@@ -382,7 +384,7 @@ <h1>
 
 <div class="alert warning">
 
-<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
+<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
 
 </div>
 
@@ -655,7 +657,7 @@ <h2>
 
 <div class="alert warning">
 
-<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
+<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
 
 </div>
 
@@ -719,7 +721,7 @@ <h2>
 
 <div class="alert warning">
 
-<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
+<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
 
 </div>
 
@@ -783,7 +785,7 @@ <h2>
 
 <div class="alert warning">
 
-<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
+<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
 
 </div>
 
@@ -804,7 +806,7 @@ <h2>
 
 <div class="alert warning">
 
-<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
+<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
 
 </div>
 
diff --git a/cache/api.github.com/v3/apps/oauth_applications/reset-an-authorization.html b/cache/api.github.com/v3/apps/oauth_applications/reset-an-authorization.html
index 270f3250a6..a8b45e975d 100644
--- a/cache/api.github.com/v3/apps/oauth_applications/reset-an-authorization.html
+++ b/cache/api.github.com/v3/apps/oauth_applications/reset-an-authorization.html
@@ -2,7 +2,7 @@ <h2>
 <a id="reset-an-authorization" class="anchor" href="#reset-an-authorization" aria-hidden="true"><span aria-hidden="true" class="octicon octicon-link"></span></a>Reset an authorization</h2>
 <div class="alert warning">
 
-<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
+<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
 
 </div>
 <p>OAuth applications can use this API method to reset a valid OAuth token without end-user involvement.  Applications must save the &quot;token&quot; property in the response because changes take effect immediately. You must use <a href="/v3/auth#basic-authentication">Basic Authentication</a> when accessing this endpoint, using the OAuth application&apos;s <code>client_id</code> and <code>client_secret</code> as the username and password. Invalid tokens will return <code>404 NOT FOUND</code>.</p>
diff --git a/cache/api.github.com/v3/apps/oauth_applications/revoke-a-grant-for-an-application.html b/cache/api.github.com/v3/apps/oauth_applications/revoke-a-grant-for-an-application.html
index 5d6c9bcc57..d94ba2b82f 100644
--- a/cache/api.github.com/v3/apps/oauth_applications/revoke-a-grant-for-an-application.html
+++ b/cache/api.github.com/v3/apps/oauth_applications/revoke-a-grant-for-an-application.html
@@ -2,7 +2,7 @@ <h2>
 <a id="revoke-a-grant-for-an-application" class="anchor" href="#revoke-a-grant-for-an-application" aria-hidden="true"><span aria-hidden="true" class="octicon octicon-link"></span></a>Revoke a grant for an application</h2>
 <div class="alert warning">
 
-<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
+<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
 
 </div>
 <p>OAuth application owners can revoke a grant for their OAuth application and a specific user.  You must use <a href="/v3/auth#basic-authentication">Basic Authentication</a> when accessing this endpoint, using the OAuth application&apos;s <code>client_id</code> and <code>client_secret</code> as the username and password. You must also provide a valid token as <code>:access_token</code> and the grant for the token&apos;s owner will be deleted.</p>
diff --git a/cache/api.github.com/v3/apps/oauth_applications/revoke-an-authorization-for-an-application.html b/cache/api.github.com/v3/apps/oauth_applications/revoke-an-authorization-for-an-application.html
index e0d27c9a5a..7e96f78d3a 100644
--- a/cache/api.github.com/v3/apps/oauth_applications/revoke-an-authorization-for-an-application.html
+++ b/cache/api.github.com/v3/apps/oauth_applications/revoke-an-authorization-for-an-application.html
@@ -2,7 +2,7 @@ <h2>
 <a id="revoke-an-authorization-for-an-application" class="anchor" href="#revoke-an-authorization-for-an-application" aria-hidden="true"><span aria-hidden="true" class="octicon octicon-link"></span></a>Revoke an authorization for an application</h2>
 <div class="alert warning">
 
-<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
+<p><strong>Deprecation Notice:</strong> GitHub will replace and discontinue OAuth endpoints containing <code>access_token</code> in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using <code>access_token</code> as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the <a href="/changes/2020-02-14-deprecating-oauth-app-endpoint/">blog post</a>.</p>
 
 </div>
 <p>OAuth application owners can revoke a single token for an OAuth application.  You must use <a href="/v3/auth#basic-authentication">Basic Authentication</a> when accessing this endpoint, using the OAuth application&apos;s <code>client_id</code> and <code>client_secret</code> as the username and password.</p>
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index 932d0bb8bb..5e22a2696c 100644
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+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
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index 3dba7b02d5..f3a2194ac7 100644
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+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
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index 624c00ec68..c19b53b25c 100644
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@@ -70,6 +70,8 @@
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+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
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index ee9abcb0fc..301109d9fd 100644
--- a/cache/api.github.com/v3/checks/runs/index.html
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+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
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             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
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index 10d86535b8..4cd33a68e0 100644
--- a/cache/api.github.com/v3/checks/suites/create-a-check-suite.html
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@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
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+++ b/cache/api.github.com/v3/emojis/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/gists/comments/index.html b/cache/api.github.com/v3/gists/comments/index.html
index 71b14e0b1e..9f3fa661a5 100644
--- a/cache/api.github.com/v3/gists/comments/index.html
+++ b/cache/api.github.com/v3/gists/comments/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/gists/index.html b/cache/api.github.com/v3/gists/index.html
index e786e99b61..a1ba8e2cb8 100644
--- a/cache/api.github.com/v3/gists/index.html
+++ b/cache/api.github.com/v3/gists/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/git/blobs/index.html b/cache/api.github.com/v3/git/blobs/index.html
index 52837ef425..3790e68bef 100644
--- a/cache/api.github.com/v3/git/blobs/index.html
+++ b/cache/api.github.com/v3/git/blobs/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/git/commits/index.html b/cache/api.github.com/v3/git/commits/index.html
index 3366346827..c9fec668d3 100644
--- a/cache/api.github.com/v3/git/commits/index.html
+++ b/cache/api.github.com/v3/git/commits/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/git/index.html b/cache/api.github.com/v3/git/index.html
index 3b20d88560..9f74d8797c 100644
--- a/cache/api.github.com/v3/git/index.html
+++ b/cache/api.github.com/v3/git/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/git/refs/index.html b/cache/api.github.com/v3/git/refs/index.html
index 16744fe955..6a25e80d63 100644
--- a/cache/api.github.com/v3/git/refs/index.html
+++ b/cache/api.github.com/v3/git/refs/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/git/tags/index.html b/cache/api.github.com/v3/git/tags/index.html
index 962d59791b..8b30707f9a 100644
--- a/cache/api.github.com/v3/git/tags/index.html
+++ b/cache/api.github.com/v3/git/tags/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/git/trees/index.html b/cache/api.github.com/v3/git/trees/index.html
index 28d05b17ce..0a7ceb37a9 100644
--- a/cache/api.github.com/v3/git/trees/index.html
+++ b/cache/api.github.com/v3/git/trees/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/gitignore/index.html b/cache/api.github.com/v3/gitignore/index.html
index 40cd8d8a20..60bf8c2b20 100644
--- a/cache/api.github.com/v3/gitignore/index.html
+++ b/cache/api.github.com/v3/gitignore/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/interactions/index.html b/cache/api.github.com/v3/interactions/index.html
index 7ff8feedab..492f512c77 100644
--- a/cache/api.github.com/v3/interactions/index.html
+++ b/cache/api.github.com/v3/interactions/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/interactions/orgs/index.html b/cache/api.github.com/v3/interactions/orgs/index.html
index ff149d9d6b..0148161980 100644
--- a/cache/api.github.com/v3/interactions/orgs/index.html
+++ b/cache/api.github.com/v3/interactions/orgs/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/interactions/repos/index.html b/cache/api.github.com/v3/interactions/repos/index.html
index 850695fbfc..46634113ac 100644
--- a/cache/api.github.com/v3/interactions/repos/index.html
+++ b/cache/api.github.com/v3/interactions/repos/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/issues/assignees/index.html b/cache/api.github.com/v3/issues/assignees/index.html
index bffcdcadf6..5abdc8bba4 100644
--- a/cache/api.github.com/v3/issues/assignees/index.html
+++ b/cache/api.github.com/v3/issues/assignees/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/issues/comments/index.html b/cache/api.github.com/v3/issues/comments/index.html
index 9dc36f3451..2bc7cb47bc 100644
--- a/cache/api.github.com/v3/issues/comments/index.html
+++ b/cache/api.github.com/v3/issues/comments/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/issues/events/index.html b/cache/api.github.com/v3/issues/events/index.html
index c26324708a..7eed74b6b8 100644
--- a/cache/api.github.com/v3/issues/events/index.html
+++ b/cache/api.github.com/v3/issues/events/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/issues/index.html b/cache/api.github.com/v3/issues/index.html
index 55d1297450..8f8ea47304 100644
--- a/cache/api.github.com/v3/issues/index.html
+++ b/cache/api.github.com/v3/issues/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
@@ -716,6 +718,7 @@ <h3>
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@@ -1091,6 +1094,7 @@ <h3>
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@@ -1466,6 +1470,7 @@ <h3>
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diff --git a/cache/api.github.com/v3/issues/issue-event-types/index.html b/cache/api.github.com/v3/issues/issue-event-types/index.html
index b6524f7108..866c1be413 100644
--- a/cache/api.github.com/v3/issues/issue-event-types/index.html
+++ b/cache/api.github.com/v3/issues/issue-event-types/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/issues/labels/index.html b/cache/api.github.com/v3/issues/labels/index.html
index 5e29802489..4d311cd434 100644
--- a/cache/api.github.com/v3/issues/labels/index.html
+++ b/cache/api.github.com/v3/issues/labels/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/issues/list-issues-assigned-to-the-authenticated-user.html b/cache/api.github.com/v3/issues/list-issues-assigned-to-the-authenticated-user.html
index 0ea117d40b..532641c136 100644
--- a/cache/api.github.com/v3/issues/list-issues-assigned-to-the-authenticated-user.html
+++ b/cache/api.github.com/v3/issues/list-issues-assigned-to-the-authenticated-user.html
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diff --git a/cache/api.github.com/v3/issues/list-organization-issues-assigned-to-the-authenticated-user.html b/cache/api.github.com/v3/issues/list-organization-issues-assigned-to-the-authenticated-user.html
index c487a52d5d..3cfed7f971 100644
--- a/cache/api.github.com/v3/issues/list-organization-issues-assigned-to-the-authenticated-user.html
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diff --git a/cache/api.github.com/v3/issues/list-user-account-issues-assigned-to-the-authenticated-user.html b/cache/api.github.com/v3/issues/list-user-account-issues-assigned-to-the-authenticated-user.html
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--- a/cache/api.github.com/v3/issues/list-user-account-issues-assigned-to-the-authenticated-user.html
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index 75cfe12b2b..7b250ed653 100644
--- a/cache/api.github.com/v3/issues/milestones/index.html
+++ b/cache/api.github.com/v3/issues/milestones/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/issues/timeline/index.html b/cache/api.github.com/v3/issues/timeline/index.html
index dcd996bd07..812e963327 100644
--- a/cache/api.github.com/v3/issues/timeline/index.html
+++ b/cache/api.github.com/v3/issues/timeline/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/licenses/index.html b/cache/api.github.com/v3/licenses/index.html
index eb4dcef3f6..f0d55fce56 100644
--- a/cache/api.github.com/v3/licenses/index.html
+++ b/cache/api.github.com/v3/licenses/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/markdown/index.html b/cache/api.github.com/v3/markdown/index.html
index 2e26124b53..008fd3ccf3 100644
--- a/cache/api.github.com/v3/markdown/index.html
+++ b/cache/api.github.com/v3/markdown/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/media/index.html b/cache/api.github.com/v3/media/index.html
index 7963534d8e..c129fbe197 100644
--- a/cache/api.github.com/v3/media/index.html
+++ b/cache/api.github.com/v3/media/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/meta/index.html b/cache/api.github.com/v3/meta/index.html
index 3dafe8caf0..813bb3de39 100644
--- a/cache/api.github.com/v3/meta/index.html
+++ b/cache/api.github.com/v3/meta/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/migrations/index.html b/cache/api.github.com/v3/migrations/index.html
index 1337a1238f..38c6f80685 100644
--- a/cache/api.github.com/v3/migrations/index.html
+++ b/cache/api.github.com/v3/migrations/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/migrations/orgs/get-an-organization-migration-status.html b/cache/api.github.com/v3/migrations/orgs/get-an-organization-migration-status.html
index 9cfb68217d..a73fd44767 100644
--- a/cache/api.github.com/v3/migrations/orgs/get-an-organization-migration-status.html
+++ b/cache/api.github.com/v3/migrations/orgs/get-an-organization-migration-status.html
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diff --git a/cache/api.github.com/v3/migrations/orgs/index.html b/cache/api.github.com/v3/migrations/orgs/index.html
index f41e12908a..f43654b6ed 100644
--- a/cache/api.github.com/v3/migrations/orgs/index.html
+++ b/cache/api.github.com/v3/migrations/orgs/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
@@ -581,6 +583,7 @@ <h3>
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diff --git a/cache/api.github.com/v3/migrations/orgs/list-organization-migrations.html b/cache/api.github.com/v3/migrations/orgs/list-organization-migrations.html
index 0ff54348dc..0e210022b7 100644
--- a/cache/api.github.com/v3/migrations/orgs/list-organization-migrations.html
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diff --git a/cache/api.github.com/v3/migrations/orgs/list-repositories-in-an-organization-migration.html b/cache/api.github.com/v3/migrations/orgs/list-repositories-in-an-organization-migration.html
index 4eb64c0b01..cc0e56f175 100644
--- a/cache/api.github.com/v3/migrations/orgs/list-repositories-in-an-organization-migration.html
+++ b/cache/api.github.com/v3/migrations/orgs/list-repositories-in-an-organization-migration.html
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diff --git a/cache/api.github.com/v3/migrations/orgs/start-an-organization-migration.html b/cache/api.github.com/v3/migrations/orgs/start-an-organization-migration.html
index 113c3de90e..7a18b3f8cd 100644
--- a/cache/api.github.com/v3/migrations/orgs/start-an-organization-migration.html
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diff --git a/cache/api.github.com/v3/migrations/source_imports/index.html b/cache/api.github.com/v3/migrations/source_imports/index.html
index 65a5e848fe..d34a544ae6 100644
--- a/cache/api.github.com/v3/migrations/source_imports/index.html
+++ b/cache/api.github.com/v3/migrations/source_imports/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/migrations/users/get-a-user-migration-status.html b/cache/api.github.com/v3/migrations/users/get-a-user-migration-status.html
index b78b2bd6c2..5a5ce2ecc7 100644
--- a/cache/api.github.com/v3/migrations/users/get-a-user-migration-status.html
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diff --git a/cache/api.github.com/v3/migrations/users/index.html b/cache/api.github.com/v3/migrations/users/index.html
index 4394fc3f2b..ef44edc63d 100644
--- a/cache/api.github.com/v3/migrations/users/index.html
+++ b/cache/api.github.com/v3/migrations/users/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
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         </span><span class="nt">"allow_squash_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+        </span><span class="nt">"delete_branch_on_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nt">"allow_merge_commit"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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@@ -960,6 +964,7 @@ <h3>
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       </span><span class="nt">"allow_squash_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+      </span><span class="nt">"delete_branch_on_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
       </span><span class="nt">"allow_merge_commit"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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@@ -1109,6 +1114,7 @@ <h3>
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+    </span><span class="nt">"delete_branch_on_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/migrations/users/list-repositories-for-a-user-migration.html b/cache/api.github.com/v3/migrations/users/list-repositories-for-a-user-migration.html
index 93d8d57e0d..fd697ee374 100644
--- a/cache/api.github.com/v3/migrations/users/list-repositories-for-a-user-migration.html
+++ b/cache/api.github.com/v3/migrations/users/list-repositories-for-a-user-migration.html
@@ -127,6 +127,7 @@ <h3>
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+    </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/migrations/users/list-user-migrations.html b/cache/api.github.com/v3/migrations/users/list-user-migrations.html
index 20ddaf6269..ecc7aff338 100644
--- a/cache/api.github.com/v3/migrations/users/list-user-migrations.html
+++ b/cache/api.github.com/v3/migrations/users/list-user-migrations.html
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diff --git a/cache/api.github.com/v3/migrations/users/start-a-user-migration.html b/cache/api.github.com/v3/migrations/users/start-a-user-migration.html
index 73cfd8a99e..2b84af6f61 100644
--- a/cache/api.github.com/v3/migrations/users/start-a-user-migration.html
+++ b/cache/api.github.com/v3/migrations/users/start-a-user-migration.html
@@ -182,6 +182,7 @@ <h3>
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diff --git a/cache/api.github.com/v3/misc/index.html b/cache/api.github.com/v3/misc/index.html
index c87d906fb4..90c8963262 100644
--- a/cache/api.github.com/v3/misc/index.html
+++ b/cache/api.github.com/v3/misc/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/oauth_authorizations/index.html b/cache/api.github.com/v3/oauth_authorizations/index.html
index c936c77c9a..f0598442f7 100644
--- a/cache/api.github.com/v3/oauth_authorizations/index.html
+++ b/cache/api.github.com/v3/oauth_authorizations/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/orgs/blocking/index.html b/cache/api.github.com/v3/orgs/blocking/index.html
index 73932c9ba2..637f8ae93d 100644
--- a/cache/api.github.com/v3/orgs/blocking/index.html
+++ b/cache/api.github.com/v3/orgs/blocking/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/orgs/hooks/index.html b/cache/api.github.com/v3/orgs/hooks/index.html
index f549dd2347..ce47a5548f 100644
--- a/cache/api.github.com/v3/orgs/hooks/index.html
+++ b/cache/api.github.com/v3/orgs/hooks/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/orgs/index.html b/cache/api.github.com/v3/orgs/index.html
index 30de4e5139..e63230b138 100644
--- a/cache/api.github.com/v3/orgs/index.html
+++ b/cache/api.github.com/v3/orgs/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/orgs/members/index.html b/cache/api.github.com/v3/orgs/members/index.html
index 047bd21cd6..383091b447 100644
--- a/cache/api.github.com/v3/orgs/members/index.html
+++ b/cache/api.github.com/v3/orgs/members/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/orgs/outside_collaborators/index.html b/cache/api.github.com/v3/orgs/outside_collaborators/index.html
index 6136ebcef5..c53a33ea85 100644
--- a/cache/api.github.com/v3/orgs/outside_collaborators/index.html
+++ b/cache/api.github.com/v3/orgs/outside_collaborators/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/previews/index.html b/cache/api.github.com/v3/previews/index.html
index f2792b790c..ff11a2b099 100644
--- a/cache/api.github.com/v3/previews/index.html
+++ b/cache/api.github.com/v3/previews/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/projects/cards/index.html b/cache/api.github.com/v3/projects/cards/index.html
index 0f90f40681..6337016105 100644
--- a/cache/api.github.com/v3/projects/cards/index.html
+++ b/cache/api.github.com/v3/projects/cards/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/projects/collaborators/index.html b/cache/api.github.com/v3/projects/collaborators/index.html
index 493764b36d..9d5d7d264d 100644
--- a/cache/api.github.com/v3/projects/collaborators/index.html
+++ b/cache/api.github.com/v3/projects/collaborators/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/projects/columns/index.html b/cache/api.github.com/v3/projects/columns/index.html
index 0653513661..9b41119089 100644
--- a/cache/api.github.com/v3/projects/columns/index.html
+++ b/cache/api.github.com/v3/projects/columns/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/projects/index.html b/cache/api.github.com/v3/projects/index.html
index f7f31564a0..fc8bb90a01 100644
--- a/cache/api.github.com/v3/projects/index.html
+++ b/cache/api.github.com/v3/projects/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/pulls/comments/index.html b/cache/api.github.com/v3/pulls/comments/index.html
index c519590f91..8b62ac87d8 100644
--- a/cache/api.github.com/v3/pulls/comments/index.html
+++ b/cache/api.github.com/v3/pulls/comments/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/pulls/create-a-pull-request.html b/cache/api.github.com/v3/pulls/create-a-pull-request.html
index 5ac42bc8bf..869d393aa8 100644
--- a/cache/api.github.com/v3/pulls/create-a-pull-request.html
+++ b/cache/api.github.com/v3/pulls/create-a-pull-request.html
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       </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+      </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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@@ -540,6 +541,7 @@ <h3>
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       </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/pulls/get-a-pull-request.html b/cache/api.github.com/v3/pulls/get-a-pull-request.html
index 19a0eec4bc..3781502358 100644
--- a/cache/api.github.com/v3/pulls/get-a-pull-request.html
+++ b/cache/api.github.com/v3/pulls/get-a-pull-request.html
@@ -356,6 +356,7 @@ <h3>
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       </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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@@ -529,6 +530,7 @@ <h3>
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       </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+      </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
       </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/rate_limit/index.html b/cache/api.github.com/v3/rate_limit/index.html
index eba3449bc9..31cc80be79 100644
--- a/cache/api.github.com/v3/rate_limit/index.html
+++ b/cache/api.github.com/v3/rate_limit/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/reactions/index.html b/cache/api.github.com/v3/reactions/index.html
index e1c717ab33..de05c0d440 100644
--- a/cache/api.github.com/v3/reactions/index.html
+++ b/cache/api.github.com/v3/reactions/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/branches/index.html b/cache/api.github.com/v3/repos/branches/index.html
index 398fead137..5e3dc2552c 100644
--- a/cache/api.github.com/v3/repos/branches/index.html
+++ b/cache/api.github.com/v3/repos/branches/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/collaborators/index.html b/cache/api.github.com/v3/repos/collaborators/index.html
index 875e82a6f1..613170a6f4 100644
--- a/cache/api.github.com/v3/repos/collaborators/index.html
+++ b/cache/api.github.com/v3/repos/collaborators/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/comments/index.html b/cache/api.github.com/v3/repos/comments/index.html
index 14e5d64750..f6414f7c34 100644
--- a/cache/api.github.com/v3/repos/comments/index.html
+++ b/cache/api.github.com/v3/repos/comments/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/commits/index.html b/cache/api.github.com/v3/repos/commits/index.html
index a51473259e..301e9fcc83 100644
--- a/cache/api.github.com/v3/repos/commits/index.html
+++ b/cache/api.github.com/v3/repos/commits/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
@@ -1649,6 +1651,7 @@ <h3>
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@@ -1784,6 +1787,7 @@ <h3>
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         </span><span class="nt">"allow_squash_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+        </span><span class="nt">"delete_branch_on_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/repos/commits/list-pull-requests-associated-with-a-commit.html b/cache/api.github.com/v3/repos/commits/list-pull-requests-associated-with-a-commit.html
index 6211f0ce35..8c6395cd4b 100644
--- a/cache/api.github.com/v3/repos/commits/list-pull-requests-associated-with-a-commit.html
+++ b/cache/api.github.com/v3/repos/commits/list-pull-requests-associated-with-a-commit.html
@@ -346,6 +346,7 @@ <h3>
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         </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+        </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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@@ -481,6 +482,7 @@ <h3>
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         </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+        </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/repos/community/index.html b/cache/api.github.com/v3/repos/community/index.html
index 5bc7e745b8..a75ad74ea0 100644
--- a/cache/api.github.com/v3/repos/community/index.html
+++ b/cache/api.github.com/v3/repos/community/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/contents/index.html b/cache/api.github.com/v3/repos/contents/index.html
index a84b216790..a467e22a27 100644
--- a/cache/api.github.com/v3/repos/contents/index.html
+++ b/cache/api.github.com/v3/repos/contents/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/create-a-repository-for-the-authenticated-user.html b/cache/api.github.com/v3/repos/create-a-repository-for-the-authenticated-user.html
index e067dd61c6..c65f5c70c7 100644
--- a/cache/api.github.com/v3/repos/create-a-repository-for-the-authenticated-user.html
+++ b/cache/api.github.com/v3/repos/create-a-repository-for-the-authenticated-user.html
@@ -260,6 +260,7 @@ <h3>
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   </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+  </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/repos/create-a-repository-using-a-template.html b/cache/api.github.com/v3/repos/create-a-repository-using-a-template.html
index c8efb4c891..507573ed59 100644
--- a/cache/api.github.com/v3/repos/create-a-repository-using-a-template.html
+++ b/cache/api.github.com/v3/repos/create-a-repository-using-a-template.html
@@ -283,12 +283,14 @@ <h3>
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     </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+    </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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   </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+  </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
   </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/repos/create-an-organization-repository.html b/cache/api.github.com/v3/repos/create-an-organization-repository.html
index 75e98813db..b375b0c8ea 100644
--- a/cache/api.github.com/v3/repos/create-an-organization-repository.html
+++ b/cache/api.github.com/v3/repos/create-an-organization-repository.html
@@ -261,6 +261,7 @@ <h3>
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   </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+  </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/repos/deployments/index.html b/cache/api.github.com/v3/repos/deployments/index.html
index 4cd84977ae..cf0303e862 100644
--- a/cache/api.github.com/v3/repos/deployments/index.html
+++ b/cache/api.github.com/v3/repos/deployments/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/downloads/index.html b/cache/api.github.com/v3/repos/downloads/index.html
index 1f7b814ec9..de39decb0c 100644
--- a/cache/api.github.com/v3/repos/downloads/index.html
+++ b/cache/api.github.com/v3/repos/downloads/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/forks/create-a-fork.html b/cache/api.github.com/v3/repos/forks/create-a-fork.html
index 93cfac2604..f06df1f99b 100644
--- a/cache/api.github.com/v3/repos/forks/create-a-fork.html
+++ b/cache/api.github.com/v3/repos/forks/create-a-fork.html
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index 86c43ed641..cfdd77d1b5 100644
--- a/cache/api.github.com/v3/repos/forks/index.html
+++ b/cache/api.github.com/v3/repos/forks/index.html
@@ -70,6 +70,8 @@
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+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
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             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
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index 3e95b6458c..086170e5f6 100644
--- a/cache/api.github.com/v3/repos/forks/list-forks.html
+++ b/cache/api.github.com/v3/repos/forks/list-forks.html
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--- a/cache/api.github.com/v3/repos/get-a-repository.html
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index 2f3e47ba51..7a5ca380cf 100644
--- a/cache/api.github.com/v3/repos/hooks/index.html
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@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
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diff --git a/cache/api.github.com/v3/repos/index.html b/cache/api.github.com/v3/repos/index.html
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@@ -70,6 +70,8 @@
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             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
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@@ -2754,6 +2766,7 @@ <h3>
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     </span><span class="nt">"allow_squash_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+    </span><span class="nt">"delete_branch_on_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">"allow_merge_commit"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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@@ -3398,6 +3411,7 @@ <h3>
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   </span><span class="nt">"allow_squash_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+  </span><span class="nt">"delete_branch_on_merge"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/repos/invitations/index.html b/cache/api.github.com/v3/repos/invitations/index.html
index 2474ea4f75..9abb3fa77e 100644
--- a/cache/api.github.com/v3/repos/invitations/index.html
+++ b/cache/api.github.com/v3/repos/invitations/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/keys/index.html b/cache/api.github.com/v3/repos/keys/index.html
index 4c945697a4..12b7c8c2cb 100644
--- a/cache/api.github.com/v3/repos/keys/index.html
+++ b/cache/api.github.com/v3/repos/keys/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/list-organization-repositories.html b/cache/api.github.com/v3/repos/list-organization-repositories.html
index 70014fc9ff..2a93921f68 100644
--- a/cache/api.github.com/v3/repos/list-organization-repositories.html
+++ b/cache/api.github.com/v3/repos/list-organization-repositories.html
@@ -168,6 +168,7 @@ <h3>
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+    </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">&quot;subscribers_count&quot;</span><span class="p">:</span><span class="w"> </span><span class="mi">42</span><span class="p">,</span><span class="w">
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     </span><span class="nt">&quot;license&quot;</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
diff --git a/cache/api.github.com/v3/repos/merging/index.html b/cache/api.github.com/v3/repos/merging/index.html
index 92541debef..7b2c7cb8e0 100644
--- a/cache/api.github.com/v3/repos/merging/index.html
+++ b/cache/api.github.com/v3/repos/merging/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/pages/index.html b/cache/api.github.com/v3/repos/pages/index.html
index 42af512408..eb6dc23f68 100644
--- a/cache/api.github.com/v3/repos/pages/index.html
+++ b/cache/api.github.com/v3/repos/pages/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/releases/index.html b/cache/api.github.com/v3/repos/releases/index.html
index 1a4f03e627..95c444d958 100644
--- a/cache/api.github.com/v3/repos/releases/index.html
+++ b/cache/api.github.com/v3/repos/releases/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/statistics/index.html b/cache/api.github.com/v3/repos/statistics/index.html
index f23fd1909c..faac855b6e 100644
--- a/cache/api.github.com/v3/repos/statistics/index.html
+++ b/cache/api.github.com/v3/repos/statistics/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/statuses/index.html b/cache/api.github.com/v3/repos/statuses/index.html
index 716c1fe54b..704e1de3dd 100644
--- a/cache/api.github.com/v3/repos/statuses/index.html
+++ b/cache/api.github.com/v3/repos/statuses/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/traffic/index.html b/cache/api.github.com/v3/repos/traffic/index.html
index 4704aa5753..ca7a7dae80 100644
--- a/cache/api.github.com/v3/repos/traffic/index.html
+++ b/cache/api.github.com/v3/repos/traffic/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/repos/transfer-a-repository.html b/cache/api.github.com/v3/repos/transfer-a-repository.html
index b6d2d07c0f..4b073c0862 100644
--- a/cache/api.github.com/v3/repos/transfer-a-repository.html
+++ b/cache/api.github.com/v3/repos/transfer-a-repository.html
@@ -150,6 +150,7 @@ <h3>
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   </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+  </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
   </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/repos/update-a-repository.html b/cache/api.github.com/v3/repos/update-a-repository.html
index c60755177c..0774c03d77 100644
--- a/cache/api.github.com/v3/repos/update-a-repository.html
+++ b/cache/api.github.com/v3/repos/update-a-repository.html
@@ -248,6 +248,7 @@ <h3>
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   </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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   </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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@@ -377,6 +378,7 @@ <h3>
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     </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+    </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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     </span><span class="nt">&quot;network_count&quot;</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="w">
@@ -487,6 +489,7 @@ <h3>
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     </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+    </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
     </span><span class="nt">&quot;allow_merge_commit&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/scim/index.html b/cache/api.github.com/v3/scim/index.html
index fbb85076ab..2c2cfe1be7 100644
--- a/cache/api.github.com/v3/scim/index.html
+++ b/cache/api.github.com/v3/scim/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/search/index.html b/cache/api.github.com/v3/search/index.html
index bbc3124138..7ade1d10b7 100644
--- a/cache/api.github.com/v3/search/index.html
+++ b/cache/api.github.com/v3/search/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/teams/check-team-permissions-for-a-repository-legacy.html b/cache/api.github.com/v3/teams/check-team-permissions-for-a-repository-legacy.html
index 7a3e0706e9..15c3306f4f 100644
--- a/cache/api.github.com/v3/teams/check-team-permissions-for-a-repository-legacy.html
+++ b/cache/api.github.com/v3/teams/check-team-permissions-for-a-repository-legacy.html
@@ -153,6 +153,7 @@ <h3>
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     </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+    </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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@@ -263,6 +264,7 @@ <h3>
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     </span><span class="nt">&quot;allow_squash_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
+    </span><span class="nt">&quot;delete_branch_on_merge&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
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diff --git a/cache/api.github.com/v3/teams/check-team-permissions-for-a-repository.html b/cache/api.github.com/v3/teams/check-team-permissions-for-a-repository.html
index 629f9c9cf0..346b4c6a2a 100644
--- a/cache/api.github.com/v3/teams/check-team-permissions-for-a-repository.html
+++ b/cache/api.github.com/v3/teams/check-team-permissions-for-a-repository.html
@@ -153,6 +153,7 @@ <h3>
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--- a/cache/api.github.com/v3/teams/discussion_comments/index.html
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@@ -70,6 +70,8 @@
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+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
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             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
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--- a/cache/api.github.com/v3/teams/discussions/index.html
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@@ -70,6 +70,8 @@
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             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
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index 1d68d15880..68c7bdc12c 100644
--- a/cache/api.github.com/v3/teams/index.html
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@@ -70,6 +70,8 @@
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+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
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             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
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--- a/cache/api.github.com/v3/teams/list-team-repositories-legacy.html
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--- a/cache/api.github.com/v3/teams/list-team-repositories.html
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index 9398d34b77..de4b91ac2f 100644
--- a/cache/api.github.com/v3/teams/members/index.html
+++ b/cache/api.github.com/v3/teams/members/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/teams/team_sync/index.html b/cache/api.github.com/v3/teams/team_sync/index.html
index cec111b290..63e49ad6c8 100644
--- a/cache/api.github.com/v3/teams/team_sync/index.html
+++ b/cache/api.github.com/v3/teams/team_sync/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/troubleshooting/index.html b/cache/api.github.com/v3/troubleshooting/index.html
index d5a84a94e9..3cf512b20a 100644
--- a/cache/api.github.com/v3/troubleshooting/index.html
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@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/users/blocking/index.html b/cache/api.github.com/v3/users/blocking/index.html
index e3cfa8e4a3..45e9f7626d 100644
--- a/cache/api.github.com/v3/users/blocking/index.html
+++ b/cache/api.github.com/v3/users/blocking/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/users/emails/index.html b/cache/api.github.com/v3/users/emails/index.html
index 6e13c68f29..56d730ce29 100644
--- a/cache/api.github.com/v3/users/emails/index.html
+++ b/cache/api.github.com/v3/users/emails/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/users/followers/index.html b/cache/api.github.com/v3/users/followers/index.html
index 377522d7fb..fdb6e5b41c 100644
--- a/cache/api.github.com/v3/users/followers/index.html
+++ b/cache/api.github.com/v3/users/followers/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/users/gpg_keys/index.html b/cache/api.github.com/v3/users/gpg_keys/index.html
index 3e1352fc72..4c6e54a878 100644
--- a/cache/api.github.com/v3/users/gpg_keys/index.html
+++ b/cache/api.github.com/v3/users/gpg_keys/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/users/index.html b/cache/api.github.com/v3/users/index.html
index 34ed7c5043..c8963b3954 100644
--- a/cache/api.github.com/v3/users/index.html
+++ b/cache/api.github.com/v3/users/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/users/keys/index.html b/cache/api.github.com/v3/users/keys/index.html
index 4dbf74e59d..533a22e53b 100644
--- a/cache/api.github.com/v3/users/keys/index.html
+++ b/cache/api.github.com/v3/users/keys/index.html
@@ -70,6 +70,8 @@
           <div id="js-dropdown-menu" class="dropdown-menu">
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/cache/api.github.com/v3/versions/index.html b/cache/api.github.com/v3/versions/index.html
index 51c3dc13f4..ce49e4121b 100644
--- a/cache/api.github.com/v3/versions/index.html
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@@ -70,6 +70,8 @@
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             <a class="dropdown-menu-item" data-proofer-ignore>GitHub.com</a>
             
+            <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.21</a>
+            
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.20</a>
             
             <a class="dropdown-menu-item" data-proofer-ignore>GitHub Enterprise Server 2.19</a>
diff --git a/openapi/api.github.com/operations/activity/list-repos-starred-by-authenticated-user.json b/openapi/api.github.com/operations/activity/list-repos-starred-by-authenticated-user.json
index f26c2d67a4..e780de24b0 100644
--- a/openapi/api.github.com/operations/activity/list-repos-starred-by-authenticated-user.json
+++ b/openapi/api.github.com/operations/activity/list-repos-starred-by-authenticated-user.json
@@ -164,6 +164,7 @@
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                 "temp_clone_token": { "type": "string" },
                 "allow_squash_merge": { "type": "boolean" },
+                "delete_branch_on_merge": { "type": "boolean" },
                 "allow_merge_commit": { "type": "boolean" },
                 "subscribers_count": { "type": "number" },
                 "network_count": { "type": "number" }
@@ -275,6 +276,7 @@
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                   "allow_squash_merge": true,
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@@ -402,6 +404,7 @@
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                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
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                     "template_repository": null,
                     "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                     "allow_squash_merge": true,
+                    "delete_branch_on_merge": true,
                     "allow_merge_commit": true,
                     "subscribers_count": 42,
                     "network_count": 0
diff --git a/openapi/api.github.com/operations/activity/list-repos-starred-by-user.json b/openapi/api.github.com/operations/activity/list-repos-starred-by-user.json
index cded298f27..4fc39c7a64 100644
--- a/openapi/api.github.com/operations/activity/list-repos-starred-by-user.json
+++ b/openapi/api.github.com/operations/activity/list-repos-starred-by-user.json
@@ -170,6 +170,7 @@
                 "template_repository": { "type": "string" },
                 "temp_clone_token": { "type": "string" },
                 "allow_squash_merge": { "type": "boolean" },
+                "delete_branch_on_merge": { "type": "boolean" },
                 "allow_merge_commit": { "type": "boolean" },
                 "subscribers_count": { "type": "number" },
                 "network_count": { "type": "number" }
@@ -281,6 +282,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
@@ -408,6 +410,7 @@
                     "template_repository": { "type": "string" },
                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
@@ -523,6 +526,7 @@
                     "template_repository": null,
                     "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                     "allow_squash_merge": true,
+                    "delete_branch_on_merge": true,
                     "allow_merge_commit": true,
                     "subscribers_count": 42,
                     "network_count": 0
diff --git a/openapi/api.github.com/operations/activity/list-repos-watched-by-user.json b/openapi/api.github.com/operations/activity/list-repos-watched-by-user.json
index fb185fcfac..b0bab6f02a 100644
--- a/openapi/api.github.com/operations/activity/list-repos-watched-by-user.json
+++ b/openapi/api.github.com/operations/activity/list-repos-watched-by-user.json
@@ -150,6 +150,7 @@
                 },
                 "template_repository": { "type": "string" },
                 "temp_clone_token": { "type": "string" },
+                "delete_branch_on_merge": { "type": "boolean" },
                 "subscribers_count": { "type": "number" },
                 "network_count": { "type": "number" },
                 "license": {
@@ -261,6 +262,7 @@
               "permissions": { "admin": false, "push": false, "pull": true },
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+              "delete_branch_on_merge": true,
               "subscribers_count": 42,
               "network_count": 0,
               "license": {
diff --git a/openapi/api.github.com/operations/activity/list-watched-repos-for-authenticated-user.json b/openapi/api.github.com/operations/activity/list-watched-repos-for-authenticated-user.json
index fb5ed8654e..b9fa6c131f 100644
--- a/openapi/api.github.com/operations/activity/list-watched-repos-for-authenticated-user.json
+++ b/openapi/api.github.com/operations/activity/list-watched-repos-for-authenticated-user.json
@@ -144,6 +144,7 @@
                 },
                 "template_repository": { "type": "string" },
                 "temp_clone_token": { "type": "string" },
+                "delete_branch_on_merge": { "type": "boolean" },
                 "subscribers_count": { "type": "number" },
                 "network_count": { "type": "number" },
                 "license": {
@@ -255,6 +256,7 @@
               "permissions": { "admin": false, "push": false, "pull": true },
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+              "delete_branch_on_merge": true,
               "subscribers_count": 42,
               "network_count": 0,
               "license": {
diff --git a/openapi/api.github.com/operations/apps/check-authorization.json b/openapi/api.github.com/operations/apps/check-authorization.json
index fda3c319b1..555124950f 100644
--- a/openapi/api.github.com/operations/apps/check-authorization.json
+++ b/openapi/api.github.com/operations/apps/check-authorization.json
@@ -1,6 +1,6 @@
 {
   "summary": "Check an authorization",
-  "description": "**Deprecation Notice:** GitHub will replace and discontinue OAuth endpoints containing `access_token` in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using `access_token` as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the [blog post](https://developer.github.com/changes/2020-02-14-deprecating-oauth-app-endpoint/).\n\nOAuth applications can use a special API method for checking OAuth token validity without exceeding the normal rate limits for failed login attempts. Authentication works differently with this particular endpoint. You must use [Basic Authentication](https://developer.github.com/v3/auth#basic-authentication) when accessing this endpoint, using the OAuth application's `client_id` and `client_secret` as the username and password. Invalid tokens will return `404 NOT FOUND`.",
+  "description": "**Deprecation Notice:** GitHub will replace and discontinue OAuth endpoints containing `access_token` in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using `access_token` as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the [blog post](https://developer.github.com/changes/2020-02-14-deprecating-oauth-app-endpoint/).\n\nOAuth applications can use a special API method for checking OAuth token validity without exceeding the normal rate limits for failed login attempts. Authentication works differently with this particular endpoint. You must use [Basic Authentication](https://developer.github.com/v3/auth#basic-authentication) when accessing this endpoint, using the OAuth application's `client_id` and `client_secret` as the username and password. Invalid tokens will return `404 NOT FOUND`.",
   "operationId": "apps/check-authorization",
   "tags": ["apps"],
   "externalDocs": {
diff --git a/openapi/api.github.com/operations/apps/create-installation-access-token.json b/openapi/api.github.com/operations/apps/create-installation-access-token.json
index 041ae4da7f..8e4ae7f10f 100644
--- a/openapi/api.github.com/operations/apps/create-installation-access-token.json
+++ b/openapi/api.github.com/operations/apps/create-installation-access-token.json
@@ -160,6 +160,7 @@
                     "template_repository": { "type": "string" },
                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
@@ -271,6 +272,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/apps/list-installation-repos-for-authenticated-user.json b/openapi/api.github.com/operations/apps/list-installation-repos-for-authenticated-user.json
index 1d1dbedf98..af2ce0d575 100644
--- a/openapi/api.github.com/operations/apps/list-installation-repos-for-authenticated-user.json
+++ b/openapi/api.github.com/operations/apps/list-installation-repos-for-authenticated-user.json
@@ -160,6 +160,7 @@
                     "template_repository": { "type": "string" },
                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
@@ -268,6 +269,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/apps/list-repos-accessible-to-installation.json b/openapi/api.github.com/operations/apps/list-repos-accessible-to-installation.json
index 48ddb6c7a4..1fda584d9a 100644
--- a/openapi/api.github.com/operations/apps/list-repos-accessible-to-installation.json
+++ b/openapi/api.github.com/operations/apps/list-repos-accessible-to-installation.json
@@ -146,6 +146,7 @@
                     "template_repository": { "type": "string" },
                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
@@ -253,6 +254,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/apps/reset-authorization.json b/openapi/api.github.com/operations/apps/reset-authorization.json
index c6fe0c545d..604f3e80d8 100644
--- a/openapi/api.github.com/operations/apps/reset-authorization.json
+++ b/openapi/api.github.com/operations/apps/reset-authorization.json
@@ -1,6 +1,6 @@
 {
   "summary": "Reset an authorization",
-  "description": "**Deprecation Notice:** GitHub will replace and discontinue OAuth endpoints containing `access_token` in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using `access_token` as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the [blog post](https://developer.github.com/changes/2020-02-14-deprecating-oauth-app-endpoint/).\n\nOAuth applications can use this API method to reset a valid OAuth token without end-user involvement. Applications must save the \"token\" property in the response because changes take effect immediately. You must use [Basic Authentication](https://developer.github.com/v3/auth#basic-authentication) when accessing this endpoint, using the OAuth application's `client_id` and `client_secret` as the username and password. Invalid tokens will return `404 NOT FOUND`.",
+  "description": "**Deprecation Notice:** GitHub will replace and discontinue OAuth endpoints containing `access_token` in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using `access_token` as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the [blog post](https://developer.github.com/changes/2020-02-14-deprecating-oauth-app-endpoint/).\n\nOAuth applications can use this API method to reset a valid OAuth token without end-user involvement. Applications must save the \"token\" property in the response because changes take effect immediately. You must use [Basic Authentication](https://developer.github.com/v3/auth#basic-authentication) when accessing this endpoint, using the OAuth application's `client_id` and `client_secret` as the username and password. Invalid tokens will return `404 NOT FOUND`.",
   "operationId": "apps/reset-authorization",
   "tags": ["apps"],
   "externalDocs": {
diff --git a/openapi/api.github.com/operations/apps/revoke-authorization-for-application.json b/openapi/api.github.com/operations/apps/revoke-authorization-for-application.json
index 2d5a288adf..cad9e96773 100644
--- a/openapi/api.github.com/operations/apps/revoke-authorization-for-application.json
+++ b/openapi/api.github.com/operations/apps/revoke-authorization-for-application.json
@@ -1,6 +1,6 @@
 {
   "summary": "Revoke an authorization for an application",
-  "description": "**Deprecation Notice:** GitHub will replace and discontinue OAuth endpoints containing `access_token` in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using `access_token` as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the [blog post](https://developer.github.com/changes/2020-02-14-deprecating-oauth-app-endpoint/).\n\nOAuth application owners can revoke a single token for an OAuth application. You must use [Basic Authentication](https://developer.github.com/v3/auth#basic-authentication) when accessing this endpoint, using the OAuth application's `client_id` and `client_secret` as the username and password.",
+  "description": "**Deprecation Notice:** GitHub will replace and discontinue OAuth endpoints containing `access_token` in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using `access_token` as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the [blog post](https://developer.github.com/changes/2020-02-14-deprecating-oauth-app-endpoint/).\n\nOAuth application owners can revoke a single token for an OAuth application. You must use [Basic Authentication](https://developer.github.com/v3/auth#basic-authentication) when accessing this endpoint, using the OAuth application's `client_id` and `client_secret` as the username and password.",
   "operationId": "apps/revoke-authorization-for-application",
   "tags": ["apps"],
   "externalDocs": {
diff --git a/openapi/api.github.com/operations/apps/revoke-grant-for-application.json b/openapi/api.github.com/operations/apps/revoke-grant-for-application.json
index 04f70b6073..189082c993 100644
--- a/openapi/api.github.com/operations/apps/revoke-grant-for-application.json
+++ b/openapi/api.github.com/operations/apps/revoke-grant-for-application.json
@@ -1,6 +1,6 @@
 {
   "summary": "Revoke a grant for an application",
-  "description": "**Deprecation Notice:** GitHub will replace and discontinue OAuth endpoints containing `access_token` in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using `access_token` as an input parameter. The OAuth Application API will be removed on July 1, 2020. For more information, including scheduled brownouts, see the [blog post](https://developer.github.com/changes/2020-02-14-deprecating-oauth-app-endpoint/).\n\nOAuth application owners can revoke a grant for their OAuth application and a specific user. You must use [Basic Authentication](https://developer.github.com/v3/auth#basic-authentication) when accessing this endpoint, using the OAuth application's `client_id` and `client_secret` as the username and password. You must also provide a valid token as `:access_token` and the grant for the token's owner will be deleted.\n\nDeleting an OAuth application's grant will also delete all OAuth tokens associated with the application for the user. Once deleted, the application will have no access to the user's account and will no longer be listed on [the Applications settings page under \"Authorized OAuth Apps\" on GitHub](https://github.com/settings/applications#authorized).",
+  "description": "**Deprecation Notice:** GitHub will replace and discontinue OAuth endpoints containing `access_token` in the path parameter. We are introducing new endpoints that allow you to securely manage tokens for OAuth Apps by using `access_token` as an input parameter. The OAuth Application API will be removed on May 5, 2021. For more information, including scheduled brownouts, see the [blog post](https://developer.github.com/changes/2020-02-14-deprecating-oauth-app-endpoint/).\n\nOAuth application owners can revoke a grant for their OAuth application and a specific user. You must use [Basic Authentication](https://developer.github.com/v3/auth#basic-authentication) when accessing this endpoint, using the OAuth application's `client_id` and `client_secret` as the username and password. You must also provide a valid token as `:access_token` and the grant for the token's owner will be deleted.\n\nDeleting an OAuth application's grant will also delete all OAuth tokens associated with the application for the user. Once deleted, the application will have no access to the user's account and will no longer be listed on [the Applications settings page under \"Authorized OAuth Apps\" on GitHub](https://github.com/settings/applications#authorized).",
   "operationId": "apps/revoke-grant-for-application",
   "tags": ["apps"],
   "externalDocs": {
diff --git a/openapi/api.github.com/operations/checks/create-suite.json b/openapi/api.github.com/operations/checks/create-suite.json
index 06b0ea4e44..9264d25fec 100644
--- a/openapi/api.github.com/operations/checks/create-suite.json
+++ b/openapi/api.github.com/operations/checks/create-suite.json
@@ -199,6 +199,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -346,6 +347,7 @@
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
               "allow_squash_merge": true,
+              "delete_branch_on_merge": true,
               "allow_merge_commit": true,
               "subscribers_count": 42,
               "network_count": 0
diff --git a/openapi/api.github.com/operations/checks/get-suite.json b/openapi/api.github.com/operations/checks/get-suite.json
index 911b8997a7..ac9bd4843c 100644
--- a/openapi/api.github.com/operations/checks/get-suite.json
+++ b/openapi/api.github.com/operations/checks/get-suite.json
@@ -205,6 +205,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -352,6 +353,7 @@
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
               "allow_squash_merge": true,
+              "delete_branch_on_merge": true,
               "allow_merge_commit": true,
               "subscribers_count": 42,
               "network_count": 0
diff --git a/openapi/api.github.com/operations/checks/list-suites-for-ref.json b/openapi/api.github.com/operations/checks/list-suites-for-ref.json
index 0528e0fe83..dfdcb25ce7 100644
--- a/openapi/api.github.com/operations/checks/list-suites-for-ref.json
+++ b/openapi/api.github.com/operations/checks/list-suites-for-ref.json
@@ -244,6 +244,7 @@
                         "template_repository": { "type": "string" },
                         "temp_clone_token": { "type": "string" },
                         "allow_squash_merge": { "type": "boolean" },
+                        "delete_branch_on_merge": { "type": "boolean" },
                         "allow_merge_commit": { "type": "boolean" },
                         "subscribers_count": { "type": "number" },
                         "network_count": { "type": "number" }
@@ -401,6 +402,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
diff --git a/openapi/api.github.com/operations/checks/set-suites-preferences.json b/openapi/api.github.com/operations/checks/set-suites-preferences.json
index 56ad311b84..b77b840924 100644
--- a/openapi/api.github.com/operations/checks/set-suites-preferences.json
+++ b/openapi/api.github.com/operations/checks/set-suites-preferences.json
@@ -164,6 +164,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -275,6 +276,7 @@
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
               "allow_squash_merge": true,
+              "delete_branch_on_merge": true,
               "allow_merge_commit": true,
               "subscribers_count": 42,
               "network_count": 0
diff --git a/openapi/api.github.com/operations/issues/list-for-authenticated-user.json b/openapi/api.github.com/operations/issues/list-for-authenticated-user.json
index ac6ffd4252..d9f6e9e497 100644
--- a/openapi/api.github.com/operations/issues/list-for-authenticated-user.json
+++ b/openapi/api.github.com/operations/issues/list-for-authenticated-user.json
@@ -363,6 +363,7 @@
                     "template_repository": { "type": "string" },
                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
@@ -604,6 +605,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/issues/list-for-org.json b/openapi/api.github.com/operations/issues/list-for-org.json
index 1c1a725444..7993ad357d 100644
--- a/openapi/api.github.com/operations/issues/list-for-org.json
+++ b/openapi/api.github.com/operations/issues/list-for-org.json
@@ -369,6 +369,7 @@
                     "template_repository": { "type": "string" },
                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
@@ -610,6 +611,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/issues/list.json b/openapi/api.github.com/operations/issues/list.json
index 52efca190d..447c372246 100644
--- a/openapi/api.github.com/operations/issues/list.json
+++ b/openapi/api.github.com/operations/issues/list.json
@@ -363,6 +363,7 @@
                     "template_repository": { "type": "string" },
                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
@@ -604,6 +605,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/migrations/get-status-for-authenticated-user.json b/openapi/api.github.com/operations/migrations/get-status-for-authenticated-user.json
index 1d274d24cc..82a8b3b3bb 100644
--- a/openapi/api.github.com/operations/migrations/get-status-for-authenticated-user.json
+++ b/openapi/api.github.com/operations/migrations/get-status-for-authenticated-user.json
@@ -175,6 +175,7 @@
                     "template_repository": { "type": "string" },
                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
@@ -310,6 +311,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/migrations/get-status-for-org.json b/openapi/api.github.com/operations/migrations/get-status-for-org.json
index 86b221a22d..4f16237cb5 100644
--- a/openapi/api.github.com/operations/migrations/get-status-for-org.json
+++ b/openapi/api.github.com/operations/migrations/get-status-for-org.json
@@ -175,6 +175,7 @@
                     "template_repository": { "type": "string" },
                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
@@ -304,6 +305,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/migrations/list-for-authenticated-user.json b/openapi/api.github.com/operations/migrations/list-for-authenticated-user.json
index 0a56db9049..032cf43920 100644
--- a/openapi/api.github.com/operations/migrations/list-for-authenticated-user.json
+++ b/openapi/api.github.com/operations/migrations/list-for-authenticated-user.json
@@ -183,6 +183,7 @@
                       "template_repository": { "type": "string" },
                       "temp_clone_token": { "type": "string" },
                       "allow_squash_merge": { "type": "boolean" },
+                      "delete_branch_on_merge": { "type": "boolean" },
                       "allow_merge_commit": { "type": "boolean" },
                       "subscribers_count": { "type": "number" },
                       "network_count": { "type": "number" }
@@ -324,6 +325,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
diff --git a/openapi/api.github.com/operations/migrations/list-for-org.json b/openapi/api.github.com/operations/migrations/list-for-org.json
index 2524757b81..e8935875ba 100644
--- a/openapi/api.github.com/operations/migrations/list-for-org.json
+++ b/openapi/api.github.com/operations/migrations/list-for-org.json
@@ -183,6 +183,7 @@
                       "template_repository": { "type": "string" },
                       "temp_clone_token": { "type": "string" },
                       "allow_squash_merge": { "type": "boolean" },
+                      "delete_branch_on_merge": { "type": "boolean" },
                       "allow_merge_commit": { "type": "boolean" },
                       "subscribers_count": { "type": "number" },
                       "network_count": { "type": "number" }
@@ -318,6 +319,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
diff --git a/openapi/api.github.com/operations/migrations/list-repos-for-org.json b/openapi/api.github.com/operations/migrations/list-repos-for-org.json
index 4396206205..312dd54054 100644
--- a/openapi/api.github.com/operations/migrations/list-repos-for-org.json
+++ b/openapi/api.github.com/operations/migrations/list-repos-for-org.json
@@ -157,6 +157,7 @@
                 },
                 "template_repository": { "type": "string" },
                 "temp_clone_token": { "type": "string" },
+                "delete_branch_on_merge": { "type": "boolean" },
                 "subscribers_count": { "type": "number" },
                 "network_count": { "type": "number" },
                 "license": {
@@ -268,6 +269,7 @@
               "permissions": { "admin": false, "push": false, "pull": true },
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+              "delete_branch_on_merge": true,
               "subscribers_count": 42,
               "network_count": 0,
               "license": {
diff --git a/openapi/api.github.com/operations/migrations/list-repos-for-user.json b/openapi/api.github.com/operations/migrations/list-repos-for-user.json
index 43570a3748..3699572666 100644
--- a/openapi/api.github.com/operations/migrations/list-repos-for-user.json
+++ b/openapi/api.github.com/operations/migrations/list-repos-for-user.json
@@ -151,6 +151,7 @@
                 },
                 "template_repository": { "type": "string" },
                 "temp_clone_token": { "type": "string" },
+                "delete_branch_on_merge": { "type": "boolean" },
                 "subscribers_count": { "type": "number" },
                 "network_count": { "type": "number" },
                 "license": {
@@ -262,6 +263,7 @@
               "permissions": { "admin": false, "push": false, "pull": true },
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+              "delete_branch_on_merge": true,
               "subscribers_count": 42,
               "network_count": 0,
               "license": {
diff --git a/openapi/api.github.com/operations/migrations/start-for-authenticated-user.json b/openapi/api.github.com/operations/migrations/start-for-authenticated-user.json
index cf2aaa10c9..fd3988afeb 100644
--- a/openapi/api.github.com/operations/migrations/start-for-authenticated-user.json
+++ b/openapi/api.github.com/operations/migrations/start-for-authenticated-user.json
@@ -168,6 +168,7 @@
                     "template_repository": { "type": "string" },
                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
@@ -303,6 +304,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/migrations/start-for-org.json b/openapi/api.github.com/operations/migrations/start-for-org.json
index 325eb4dc29..bb99c188a6 100644
--- a/openapi/api.github.com/operations/migrations/start-for-org.json
+++ b/openapi/api.github.com/operations/migrations/start-for-org.json
@@ -168,6 +168,7 @@
                     "template_repository": { "type": "string" },
                     "temp_clone_token": { "type": "string" },
                     "allow_squash_merge": { "type": "boolean" },
+                    "delete_branch_on_merge": { "type": "boolean" },
                     "allow_merge_commit": { "type": "boolean" },
                     "subscribers_count": { "type": "number" },
                     "network_count": { "type": "number" }
@@ -297,6 +298,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/pulls/create.json b/openapi/api.github.com/operations/pulls/create.json
index ce494ae2de..d66cea03d7 100644
--- a/openapi/api.github.com/operations/pulls/create.json
+++ b/openapi/api.github.com/operations/pulls/create.json
@@ -398,6 +398,7 @@
                       "template_repository": { "type": "string" },
                       "temp_clone_token": { "type": "string" },
                       "allow_squash_merge": { "type": "boolean" },
+                      "delete_branch_on_merge": { "type": "boolean" },
                       "allow_merge_commit": { "type": "boolean" },
                       "subscribers_count": { "type": "number" },
                       "network_count": { "type": "number" }
@@ -546,6 +547,7 @@
                       "template_repository": { "type": "string" },
                       "temp_clone_token": { "type": "string" },
                       "allow_squash_merge": { "type": "boolean" },
+                      "delete_branch_on_merge": { "type": "boolean" },
                       "allow_merge_commit": { "type": "boolean" },
                       "subscribers_count": { "type": "number" },
                       "network_count": { "type": "number" }
@@ -941,6 +943,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
@@ -1067,6 +1070,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/pulls/get.json b/openapi/api.github.com/operations/pulls/get.json
index 7a1e47ad2e..54f1d510e3 100644
--- a/openapi/api.github.com/operations/pulls/get.json
+++ b/openapi/api.github.com/operations/pulls/get.json
@@ -404,6 +404,7 @@
                       "template_repository": { "type": "string" },
                       "temp_clone_token": { "type": "string" },
                       "allow_squash_merge": { "type": "boolean" },
+                      "delete_branch_on_merge": { "type": "boolean" },
                       "allow_merge_commit": { "type": "boolean" },
                       "subscribers_count": { "type": "number" },
                       "network_count": { "type": "number" }
@@ -552,6 +553,7 @@
                       "template_repository": { "type": "string" },
                       "temp_clone_token": { "type": "string" },
                       "allow_squash_merge": { "type": "boolean" },
+                      "delete_branch_on_merge": { "type": "boolean" },
                       "allow_merge_commit": { "type": "boolean" },
                       "subscribers_count": { "type": "number" },
                       "network_count": { "type": "number" }
@@ -947,6 +949,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
@@ -1073,6 +1076,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/pulls/list.json b/openapi/api.github.com/operations/pulls/list.json
index 776ba38b82..0fb646ee34 100644
--- a/openapi/api.github.com/operations/pulls/list.json
+++ b/openapi/api.github.com/operations/pulls/list.json
@@ -455,6 +455,7 @@
                         "template_repository": { "type": "string" },
                         "temp_clone_token": { "type": "string" },
                         "allow_squash_merge": { "type": "boolean" },
+                        "delete_branch_on_merge": { "type": "boolean" },
                         "allow_merge_commit": { "type": "boolean" },
                         "subscribers_count": { "type": "number" },
                         "network_count": { "type": "number" }
@@ -603,6 +604,7 @@
                         "template_repository": { "type": "string" },
                         "temp_clone_token": { "type": "string" },
                         "allow_squash_merge": { "type": "boolean" },
+                        "delete_branch_on_merge": { "type": "boolean" },
                         "allow_merge_commit": { "type": "boolean" },
                         "subscribers_count": { "type": "number" },
                         "network_count": { "type": "number" }
@@ -970,6 +972,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
@@ -1100,6 +1103,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
diff --git a/openapi/api.github.com/operations/pulls/request-reviewers.json b/openapi/api.github.com/operations/pulls/request-reviewers.json
index a5680ffc9e..e5b064b6c4 100644
--- a/openapi/api.github.com/operations/pulls/request-reviewers.json
+++ b/openapi/api.github.com/operations/pulls/request-reviewers.json
@@ -424,6 +424,7 @@
                       "template_repository": { "type": "string" },
                       "temp_clone_token": { "type": "string" },
                       "allow_squash_merge": { "type": "boolean" },
+                      "delete_branch_on_merge": { "type": "boolean" },
                       "allow_merge_commit": { "type": "boolean" },
                       "subscribers_count": { "type": "number" },
                       "network_count": { "type": "number" }
@@ -572,6 +573,7 @@
                       "template_repository": { "type": "string" },
                       "temp_clone_token": { "type": "string" },
                       "allow_squash_merge": { "type": "boolean" },
+                      "delete_branch_on_merge": { "type": "boolean" },
                       "allow_merge_commit": { "type": "boolean" },
                       "subscribers_count": { "type": "number" },
                       "network_count": { "type": "number" }
@@ -973,6 +975,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
@@ -1099,6 +1102,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/pulls/update.json b/openapi/api.github.com/operations/pulls/update.json
index 84ac428b90..ef84016726 100644
--- a/openapi/api.github.com/operations/pulls/update.json
+++ b/openapi/api.github.com/operations/pulls/update.json
@@ -404,6 +404,7 @@
                       "template_repository": { "type": "string" },
                       "temp_clone_token": { "type": "string" },
                       "allow_squash_merge": { "type": "boolean" },
+                      "delete_branch_on_merge": { "type": "boolean" },
                       "allow_merge_commit": { "type": "boolean" },
                       "subscribers_count": { "type": "number" },
                       "network_count": { "type": "number" }
@@ -552,6 +553,7 @@
                       "template_repository": { "type": "string" },
                       "temp_clone_token": { "type": "string" },
                       "allow_squash_merge": { "type": "boolean" },
+                      "delete_branch_on_merge": { "type": "boolean" },
                       "allow_merge_commit": { "type": "boolean" },
                       "subscribers_count": { "type": "number" },
                       "network_count": { "type": "number" }
@@ -947,6 +949,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
@@ -1073,6 +1076,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0
diff --git a/openapi/api.github.com/operations/repos/create-for-authenticated-user.json b/openapi/api.github.com/operations/repos/create-for-authenticated-user.json
index 6e7b6d0376..a7773f6a6c 100644
--- a/openapi/api.github.com/operations/repos/create-for-authenticated-user.json
+++ b/openapi/api.github.com/operations/repos/create-for-authenticated-user.json
@@ -132,6 +132,7 @@
               "template_repository": { "type": "string" },
               "temp_clone_token": { "type": "string" },
               "allow_squash_merge": { "type": "boolean" },
+              "delete_branch_on_merge": { "type": "boolean" },
               "allow_merge_commit": { "type": "boolean" },
               "subscribers_count": { "type": "number" },
               "network_count": { "type": "number" }
@@ -234,6 +235,7 @@
             "template_repository": null,
             "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
             "allow_squash_merge": true,
+            "delete_branch_on_merge": true,
             "allow_merge_commit": true,
             "subscribers_count": 42,
             "network_count": 0
diff --git a/openapi/api.github.com/operations/repos/create-fork.json b/openapi/api.github.com/operations/repos/create-fork.json
index 98674bb013..dc962d3e97 100644
--- a/openapi/api.github.com/operations/repos/create-fork.json
+++ b/openapi/api.github.com/operations/repos/create-fork.json
@@ -144,6 +144,7 @@
               "template_repository": { "type": "string" },
               "temp_clone_token": { "type": "string" },
               "allow_squash_merge": { "type": "boolean" },
+              "delete_branch_on_merge": { "type": "boolean" },
               "allow_merge_commit": { "type": "boolean" },
               "subscribers_count": { "type": "number" },
               "network_count": { "type": "number" }
@@ -246,6 +247,7 @@
             "template_repository": null,
             "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
             "allow_squash_merge": true,
+            "delete_branch_on_merge": true,
             "allow_merge_commit": true,
             "subscribers_count": 42,
             "network_count": 0
diff --git a/openapi/api.github.com/operations/repos/create-in-org.json b/openapi/api.github.com/operations/repos/create-in-org.json
index 95a3809ba6..3ef8fbae8c 100644
--- a/openapi/api.github.com/operations/repos/create-in-org.json
+++ b/openapi/api.github.com/operations/repos/create-in-org.json
@@ -138,6 +138,7 @@
               "template_repository": { "type": "string" },
               "temp_clone_token": { "type": "string" },
               "allow_squash_merge": { "type": "boolean" },
+              "delete_branch_on_merge": { "type": "boolean" },
               "allow_merge_commit": { "type": "boolean" },
               "subscribers_count": { "type": "number" },
               "network_count": { "type": "number" }
@@ -240,6 +241,7 @@
             "template_repository": null,
             "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
             "allow_squash_merge": true,
+            "delete_branch_on_merge": true,
             "allow_merge_commit": true,
             "subscribers_count": 42,
             "network_count": 0
diff --git a/openapi/api.github.com/operations/repos/create-using-template.json b/openapi/api.github.com/operations/repos/create-using-template.json
index c8c04e2b14..1751fbefa9 100644
--- a/openapi/api.github.com/operations/repos/create-using-template.json
+++ b/openapi/api.github.com/operations/repos/create-using-template.json
@@ -251,6 +251,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -258,6 +259,7 @@
               },
               "temp_clone_token": { "type": "string" },
               "allow_squash_merge": { "type": "boolean" },
+              "delete_branch_on_merge": { "type": "boolean" },
               "allow_merge_commit": { "type": "boolean" },
               "subscribers_count": { "type": "number" },
               "network_count": { "type": "number" }
@@ -454,12 +456,14 @@
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
               "allow_squash_merge": true,
+              "delete_branch_on_merge": true,
               "allow_merge_commit": true,
               "subscribers_count": 42,
               "network_count": 0
             },
             "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
             "allow_squash_merge": true,
+            "delete_branch_on_merge": true,
             "allow_merge_commit": true,
             "subscribers_count": 42,
             "network_count": 0
diff --git a/openapi/api.github.com/operations/repos/get.json b/openapi/api.github.com/operations/repos/get.json
index 2161f74cdc..b64c916f5a 100644
--- a/openapi/api.github.com/operations/repos/get.json
+++ b/openapi/api.github.com/operations/repos/get.json
@@ -146,6 +146,7 @@
               "template_repository": { "type": "string" },
               "temp_clone_token": { "type": "string" },
               "allow_squash_merge": { "type": "boolean" },
+              "delete_branch_on_merge": { "type": "boolean" },
               "allow_merge_commit": { "type": "boolean" },
               "subscribers_count": { "type": "number" },
               "network_count": { "type": "number" },
@@ -291,6 +292,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -405,6 +407,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -518,6 +521,7 @@
                 "template_repository": null,
                 "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                 "allow_squash_merge": true,
+                "delete_branch_on_merge": true,
                 "allow_merge_commit": true,
                 "subscribers_count": 42,
                 "network_count": 0,
@@ -649,6 +653,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
@@ -754,6 +759,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
diff --git a/openapi/api.github.com/operations/repos/list-for-org.json b/openapi/api.github.com/operations/repos/list-for-org.json
index 706487b038..a6add3ce32 100644
--- a/openapi/api.github.com/operations/repos/list-for-org.json
+++ b/openapi/api.github.com/operations/repos/list-for-org.json
@@ -186,6 +186,7 @@
                 },
                 "template_repository": { "type": "string" },
                 "temp_clone_token": { "type": "string" },
+                "delete_branch_on_merge": { "type": "boolean" },
                 "subscribers_count": { "type": "number" },
                 "network_count": { "type": "number" },
                 "license": {
@@ -297,6 +298,7 @@
               "permissions": { "admin": false, "push": false, "pull": true },
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+              "delete_branch_on_merge": true,
               "subscribers_count": 42,
               "network_count": 0,
               "license": {
diff --git a/openapi/api.github.com/operations/repos/list-forks.json b/openapi/api.github.com/operations/repos/list-forks.json
index c6d551028a..993eae7336 100644
--- a/openapi/api.github.com/operations/repos/list-forks.json
+++ b/openapi/api.github.com/operations/repos/list-forks.json
@@ -167,6 +167,7 @@
                 },
                 "template_repository": { "type": "string" },
                 "temp_clone_token": { "type": "string" },
+                "delete_branch_on_merge": { "type": "boolean" },
                 "subscribers_count": { "type": "number" },
                 "network_count": { "type": "number" },
                 "license": {
@@ -278,6 +279,7 @@
               "permissions": { "admin": false, "push": false, "pull": true },
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+              "delete_branch_on_merge": true,
               "subscribers_count": 42,
               "network_count": 0,
               "license": {
diff --git a/openapi/api.github.com/operations/repos/list-pull-requests-associated-with-commit.json b/openapi/api.github.com/operations/repos/list-pull-requests-associated-with-commit.json
index 19e7697300..6665726771 100644
--- a/openapi/api.github.com/operations/repos/list-pull-requests-associated-with-commit.json
+++ b/openapi/api.github.com/operations/repos/list-pull-requests-associated-with-commit.json
@@ -419,6 +419,7 @@
                         "template_repository": { "type": "string" },
                         "temp_clone_token": { "type": "string" },
                         "allow_squash_merge": { "type": "boolean" },
+                        "delete_branch_on_merge": { "type": "boolean" },
                         "allow_merge_commit": { "type": "boolean" },
                         "subscribers_count": { "type": "number" },
                         "network_count": { "type": "number" }
@@ -567,6 +568,7 @@
                         "template_repository": { "type": "string" },
                         "temp_clone_token": { "type": "string" },
                         "allow_squash_merge": { "type": "boolean" },
+                        "delete_branch_on_merge": { "type": "boolean" },
                         "allow_merge_commit": { "type": "boolean" },
                         "subscribers_count": { "type": "number" },
                         "network_count": { "type": "number" }
@@ -934,6 +936,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
@@ -1064,6 +1067,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
diff --git a/openapi/api.github.com/operations/repos/transfer.json b/openapi/api.github.com/operations/repos/transfer.json
index e02f926bfb..ac93131005 100644
--- a/openapi/api.github.com/operations/repos/transfer.json
+++ b/openapi/api.github.com/operations/repos/transfer.json
@@ -144,6 +144,7 @@
               "template_repository": { "type": "string" },
               "temp_clone_token": { "type": "string" },
               "allow_squash_merge": { "type": "boolean" },
+              "delete_branch_on_merge": { "type": "boolean" },
               "allow_merge_commit": { "type": "boolean" },
               "subscribers_count": { "type": "number" },
               "network_count": { "type": "number" }
@@ -246,6 +247,7 @@
             "template_repository": null,
             "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
             "allow_squash_merge": true,
+            "delete_branch_on_merge": true,
             "allow_merge_commit": true,
             "subscribers_count": 42,
             "network_count": 0
diff --git a/openapi/api.github.com/operations/repos/update.json b/openapi/api.github.com/operations/repos/update.json
index 2daa4338e1..de8c5e9955 100644
--- a/openapi/api.github.com/operations/repos/update.json
+++ b/openapi/api.github.com/operations/repos/update.json
@@ -146,6 +146,7 @@
               "template_repository": { "type": "string" },
               "temp_clone_token": { "type": "string" },
               "allow_squash_merge": { "type": "boolean" },
+              "delete_branch_on_merge": { "type": "boolean" },
               "allow_merge_commit": { "type": "boolean" },
               "subscribers_count": { "type": "number" },
               "network_count": { "type": "number" },
@@ -281,6 +282,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -395,6 +397,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -505,6 +508,7 @@
             "template_repository": null,
             "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
             "allow_squash_merge": true,
+            "delete_branch_on_merge": true,
             "allow_merge_commit": true,
             "subscribers_count": 42,
             "network_count": 0,
@@ -625,6 +629,7 @@
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
               "allow_squash_merge": true,
+              "delete_branch_on_merge": true,
               "allow_merge_commit": true,
               "subscribers_count": 42,
               "network_count": 0
@@ -726,6 +731,7 @@
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
               "allow_squash_merge": true,
+              "delete_branch_on_merge": true,
               "allow_merge_commit": true,
               "subscribers_count": 42,
               "network_count": 0
diff --git a/openapi/api.github.com/operations/teams/check-permissions-for-repo-in-org.json b/openapi/api.github.com/operations/teams/check-permissions-for-repo-in-org.json
index ef77a37275..ad35f1c591 100644
--- a/openapi/api.github.com/operations/teams/check-permissions-for-repo-in-org.json
+++ b/openapi/api.github.com/operations/teams/check-permissions-for-repo-in-org.json
@@ -182,6 +182,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -296,6 +297,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -438,6 +440,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
@@ -543,6 +546,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
diff --git a/openapi/api.github.com/operations/teams/check-permissions-for-repo-legacy.json b/openapi/api.github.com/operations/teams/check-permissions-for-repo-legacy.json
index bb3d05d8d7..22ae7c5cc6 100644
--- a/openapi/api.github.com/operations/teams/check-permissions-for-repo-legacy.json
+++ b/openapi/api.github.com/operations/teams/check-permissions-for-repo-legacy.json
@@ -176,6 +176,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -290,6 +291,7 @@
                   "template_repository": { "type": "string" },
                   "temp_clone_token": { "type": "string" },
                   "allow_squash_merge": { "type": "boolean" },
+                  "delete_branch_on_merge": { "type": "boolean" },
                   "allow_merge_commit": { "type": "boolean" },
                   "subscribers_count": { "type": "number" },
                   "network_count": { "type": "number" }
@@ -432,6 +434,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
@@ -537,6 +540,7 @@
                   "template_repository": null,
                   "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
                   "allow_squash_merge": true,
+                  "delete_branch_on_merge": true,
                   "allow_merge_commit": true,
                   "subscribers_count": 42,
                   "network_count": 0
diff --git a/openapi/api.github.com/operations/teams/list-repos-in-org.json b/openapi/api.github.com/operations/teams/list-repos-in-org.json
index 73ca919031..043661d582 100644
--- a/openapi/api.github.com/operations/teams/list-repos-in-org.json
+++ b/openapi/api.github.com/operations/teams/list-repos-in-org.json
@@ -156,6 +156,7 @@
                 },
                 "template_repository": { "type": "string" },
                 "temp_clone_token": { "type": "string" },
+                "delete_branch_on_merge": { "type": "boolean" },
                 "subscribers_count": { "type": "number" },
                 "network_count": { "type": "number" },
                 "license": {
@@ -267,6 +268,7 @@
               "permissions": { "admin": false, "push": false, "pull": true },
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+              "delete_branch_on_merge": true,
               "subscribers_count": 42,
               "network_count": 0,
               "license": {
diff --git a/openapi/api.github.com/operations/teams/list-repos-legacy.json b/openapi/api.github.com/operations/teams/list-repos-legacy.json
index 22d2a923dc..a1044d0116 100644
--- a/openapi/api.github.com/operations/teams/list-repos-legacy.json
+++ b/openapi/api.github.com/operations/teams/list-repos-legacy.json
@@ -150,6 +150,7 @@
                 },
                 "template_repository": { "type": "string" },
                 "temp_clone_token": { "type": "string" },
+                "delete_branch_on_merge": { "type": "boolean" },
                 "subscribers_count": { "type": "number" },
                 "network_count": { "type": "number" },
                 "license": {
@@ -261,6 +262,7 @@
               "permissions": { "admin": false, "push": false, "pull": true },
               "template_repository": null,
               "temp_clone_token": "ABTLWHOULUVAXGTRYU7OC2876QJ2O",
+              "delete_branch_on_merge": true,
               "subscribers_count": 42,
               "network_count": 0,
               "license": {