diff --git a/api/CSS.json b/api/CSS.json
index 76e517d34491de..54d239d22df9db 100644
--- a/api/CSS.json
+++ b/api/CSS.json
@@ -63,7 +63,7 @@
             "version_added": null
           },
           "webview_android": {
-            "version_added": "37"
+            "version_added": "4.4"
           }
         },
         "status": {
diff --git a/api/CSSStyleDeclaration.json b/api/CSSStyleDeclaration.json
index d3e609221d263f..f1f5511eec0ffa 100644
--- a/api/CSSStyleDeclaration.json
+++ b/api/CSSStyleDeclaration.json
@@ -38,7 +38,7 @@
             "version_added": true
           },
           "webview_android": {
-            "version_added": "37"
+            "version_added": "4.4"
           }
         },
         "status": {
@@ -85,7 +85,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -133,7 +133,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -181,7 +181,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -229,7 +229,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -338,7 +338,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -386,7 +386,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -434,7 +434,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -482,7 +482,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
diff --git a/api/CSSStyleRule.json b/api/CSSStyleRule.json
index dd54781d2d068a..89af00518a6859 100644
--- a/api/CSSStyleRule.json
+++ b/api/CSSStyleRule.json
@@ -38,7 +38,7 @@
             "version_added": true
           },
           "webview_android": {
-            "version_added": "37"
+            "version_added": "4.4"
           }
         },
         "status": {
@@ -85,7 +85,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -133,7 +133,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
diff --git a/api/HTMLElement.json b/api/HTMLElement.json
index e30fcd2cdb60a9..ef3b9f2c036b43 100644
--- a/api/HTMLElement.json
+++ b/api/HTMLElement.json
@@ -85,7 +85,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -434,7 +434,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -536,7 +536,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -635,7 +635,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -683,7 +683,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -731,7 +731,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -781,7 +781,7 @@
               "version_added": null
             },
             "webview_android": {
-              "version_added": "37",
+              "version_added": "4.4",
               "version_removed": "59"
             }
           },
@@ -830,7 +830,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -1125,7 +1125,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -1224,7 +1224,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -1578,7 +1578,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -2978,7 +2978,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -3026,7 +3026,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -3282,7 +3282,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
diff --git a/api/MouseEvent.json b/api/MouseEvent.json
index 55649dc2d6f80c..4a662a5ea5557a 100644
--- a/api/MouseEvent.json
+++ b/api/MouseEvent.json
@@ -899,9 +899,16 @@
             "samsunginternet_android": {
               "version_added": null
             },
-            "webview_android": {
-              "version_added": "37"
-            }
+            "webview_android": [
+              {
+                "version_added": "37"
+              },
+              {
+                "version_added": true,
+                "version_removed": "37",
+                "prefix": "webkit"
+              }
+            ]
           },
           "status": {
             "experimental": false,
@@ -978,9 +985,16 @@
             "samsunginternet_android": {
               "version_added": null
             },
-            "webview_android": {
-              "version_added": "37"
-            }
+            "webview_android": [
+              {
+                "version_added": "37"
+              },
+              {
+                "version_added": true,
+                "version_removed": "37",
+                "prefix": "webkit"
+              }
+            ]
           },
           "status": {
             "experimental": false,
diff --git a/api/RTCDTMFSender.json b/api/RTCDTMFSender.json
index 3ab0bdbefd2b68..ff0a810f0366e8 100644
--- a/api/RTCDTMFSender.json
+++ b/api/RTCDTMFSender.json
@@ -41,7 +41,7 @@
             "version_added": true
           },
           "webview_android": {
-            "version_added": "37"
+            "version_added": "4.4"
           }
         },
         "status": {
@@ -91,7 +91,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -245,7 +245,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
diff --git a/api/RTCDTMFToneChangeEvent.json b/api/RTCDTMFToneChangeEvent.json
index 795159cbc20eb8..9aed7028ddae27 100644
--- a/api/RTCDTMFToneChangeEvent.json
+++ b/api/RTCDTMFToneChangeEvent.json
@@ -41,7 +41,7 @@
             "version_added": true
           },
           "webview_android": {
-            "version_added": "37"
+            "version_added": "4.4"
           }
         },
         "status": {
@@ -91,7 +91,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -143,7 +143,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
diff --git a/api/RTCPeerConnection.json b/api/RTCPeerConnection.json
index d5c2e0d53e9865..3cb386b94cceb3 100644
--- a/api/RTCPeerConnection.json
+++ b/api/RTCPeerConnection.json
@@ -1807,7 +1807,7 @@
                 "version_added": null
               },
               "webview_android": {
-                "version_added": "37"
+                "version_added": true
               }
             },
             "status": {
diff --git a/browsers/webview_android.json b/browsers/webview_android.json
index bcaad4ee38c696..fd6f87ec9273a6 100644
--- a/browsers/webview_android.json
+++ b/browsers/webview_android.json
@@ -60,12 +60,12 @@
         },
         "4.4": {
           "release_date": "2013-12-09",
-          "release_notes": "https://en.wikipedia.org/wiki/Android_KitKat",
+          "release_notes": "https://chromereleases.googleblog.com/2013/10/chrome-for-android-update.html",
           "status": "retired"
         },
         "4.4.3": {
           "release_date": "2014-06-02",
-          "release_notes": "https://en.wikipedia.org/wiki/Android_KitKat",
+          "release_notes": "https://chromereleases.googleblog.com/2014/02/chrome-for-android-update.html",
           "status": "retired"
         },
         "37": {
diff --git a/css/properties/display.json b/css/properties/display.json
index fb5f61740f56a1..7e18474af241d2 100644
--- a/css/properties/display.json
+++ b/css/properties/display.json
@@ -1034,8 +1034,7 @@
               },
               "webview_android": {
                 "version_added": true,
-                "version_removed": "4.4.3",
-                "notes": "Before version 4, <code>run-in</code> was not supported before inline elements."
+                "version_removed": "4.4.3"
               }
             },
             "status": {
diff --git a/css/properties/grid-column-end.json b/css/properties/grid-column-end.json
index 38703a17fee5a1..e6dbd252ae9af5 100644
--- a/css/properties/grid-column-end.json
+++ b/css/properties/grid-column-end.json
@@ -109,20 +109,9 @@
             "samsunginternet_android": {
               "version_added": "6.0"
             },
-            "webview_android": [
-              {
-                "version_added": "57"
-              },
-              {
-                "version_added": "4.4",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "Enable experimental Web Platform features"
-                  }
-                ]
-              }
-            ]
+            "webview_android": {
+              "version_added": "57"
+            }
           },
           "status": {
             "experimental": false,
diff --git a/css/properties/height.json b/css/properties/height.json
index e5444bfa4939bf..ed9afa70d5af1c 100644
--- a/css/properties/height.json
+++ b/css/properties/height.json
@@ -221,7 +221,7 @@
               },
               "webview_android": {
                 "alternative_name": "-webkit-fill-available",
-                "version_added": "37"
+                "version_added": "4.4"
               }
             },
             "status": {
diff --git a/css/properties/max-height.json b/css/properties/max-height.json
index bde46673641c6e..64b6021567f2a4 100644
--- a/css/properties/max-height.json
+++ b/css/properties/max-height.json
@@ -223,7 +223,7 @@
               },
               "webview_android": {
                 "alternative_name": "-webkit-fill-available",
-                "version_added": "37"
+                "version_added": "4.4"
               }
             },
             "status": {
diff --git a/css/properties/max-width.json b/css/properties/max-width.json
index 2638c507f6ab1a..2ba779e5cda536 100644
--- a/css/properties/max-width.json
+++ b/css/properties/max-width.json
@@ -255,7 +255,7 @@
               },
               "webview_android": {
                 "alternative_name": "-webkit-fill-available",
-                "version_added": "37"
+                "version_added": "4.4"
               }
             },
             "status": {
diff --git a/css/properties/min-height.json b/css/properties/min-height.json
index 0c95e8f5c894b8..148bb4c700aa38 100644
--- a/css/properties/min-height.json
+++ b/css/properties/min-height.json
@@ -228,7 +228,7 @@
               },
               "webview_android": {
                 "alternative_name": "-webkit-fill-available",
-                "version_added": "37"
+                "version_added": "4.4"
               }
             },
             "status": {
diff --git a/css/properties/min-width.json b/css/properties/min-width.json
index 79d19ad5a7aa3f..846670376f0efd 100644
--- a/css/properties/min-width.json
+++ b/css/properties/min-width.json
@@ -264,7 +264,7 @@
               },
               "webview_android": {
                 "alternative_name": "-webkit-fill-available",
-                "version_added": "37"
+                "version_added": "4.4"
               }
             },
             "status": {
diff --git a/css/properties/text-underline-position.json b/css/properties/text-underline-position.json
index 0abaf4e756daef..30a6ba1debf004 100644
--- a/css/properties/text-underline-position.json
+++ b/css/properties/text-underline-position.json
@@ -42,7 +42,7 @@
               "version_added": false
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4.3"
             }
           },
           "status": {
@@ -92,7 +92,7 @@
                 "version_added": false
               },
               "webview_android": {
-                "version_added": "37"
+                "version_added": "4.4.3"
               }
             },
             "status": {
diff --git a/css/properties/width.json b/css/properties/width.json
index a9a50f30ef09be..0c86542916b047 100644
--- a/css/properties/width.json
+++ b/css/properties/width.json
@@ -298,7 +298,7 @@
               },
               "webview_android": {
                 "alternative_name": "-webkit-fill-available",
-                "version_added": "37"
+                "version_added": "4.4"
               }
             },
             "status": {
diff --git a/html/elements/input/range.json b/html/elements/input/range.json
index eeb16ed5c21a90..95d2330610edcc 100644
--- a/html/elements/input/range.json
+++ b/html/elements/input/range.json
@@ -48,7 +48,7 @@
                   "version_added": "2",
                   "version_removed": "4.4",
                   "partial_implementation": true,
-                  "notes": "Android WebView recognizes the <code>range</code> type, but doesn't implement a range-specific control."
+                  "notes": "Pre-Chromium Android WebView recognizes the <code>range</code> type, but doesn't implement a range-specific control."
                 }
               ]
             },
diff --git a/http/headers/content-security-policy.json b/http/headers/content-security-policy.json
index 9456862941a53a..dd1439775ccfef 100644
--- a/http/headers/content-security-policy.json
+++ b/http/headers/content-security-policy.json
@@ -1046,7 +1046,7 @@
                 "version_added": true
               },
               "webview_android": {
-                "version_added": "37",
+                "version_added": "4.4.3",
                 "version_removed": "56"
               }
             },
diff --git a/javascript/builtins/Intl.json b/javascript/builtins/Intl.json
index 101b6794811e52..6336dc0dcb0bcc 100644
--- a/javascript/builtins/Intl.json
+++ b/javascript/builtins/Intl.json
@@ -46,7 +46,7 @@
               "version_added": true
             },
             "webview_android": {
-              "version_added": "37"
+              "version_added": "4.4"
             }
           },
           "status": {
@@ -484,7 +484,7 @@
                 "version_added": true
               },
               "webview_android": {
-                "version_added": "37"
+                "version_added": "4.4"
               }
             },
             "status": {