diff --git a/.kokoro/build.sh b/.kokoro/build.sh
index 05a494ee06..21b03455e3 100755
--- a/.kokoro/build.sh
+++ b/.kokoro/build.sh
@@ -69,9 +69,16 @@ integration)
     RETURN_CODE=$?
     ;;
 samples)
-    if [[ -f samples/pom.xml ]]
+    SAMPLES_DIR=samples
+    # only run ITs in snapshot/ on presubmit PRs. run ITs in all 3 samples/ subdirectories otherwise.
+    if [[ ! -z ${KOKORO_GITHUB_PULL_REQUEST_NUMBER} ]]
     then
-        pushd samples
+      SAMPLES_DIR=samples/snapshot
+    fi
+
+    if [[ -f ${SAMPLES_DIR}/pom.xml ]]
+    then
+        pushd ${SAMPLES_DIR}
         mvn -B \
           -Penable-samples \
           -DtrimStackTrace=false \
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
index 6b2238bb75..2add2547a8 100644
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -1,3 +1,4 @@
+<!-- # Generated by synthtool. DO NOT EDIT! !-->
 # Code of Conduct
 
 ## Our Pledge
@@ -69,12 +70,12 @@ dispute. If you are unable to resolve the matter for any reason, or if the
 behavior is threatening or harassing, report it. We are dedicated to providing
 an environment where participants feel welcome and safe.
 
-Reports should be directed to *[PROJECT STEWARD NAME(s) AND EMAIL(s)]*, the
-Project Steward(s) for *[PROJECT NAME]*. It is the Project Steward’s duty to
+Reports should be directed to *googleapis-stewards@google.com*, the
+Project Steward(s) for *Google Cloud Client Libraries*. It is the Project Steward’s duty to
 receive and address reported violations of the code of conduct. They will then
 work with a committee consisting of representatives from the Open Source
 Programs Office and the Google Open Source Strategy team. If for any reason you
-are uncomfortable reaching out the Project Steward, please email
+are uncomfortable reaching out to the Project Steward, please email
 opensource@google.com.
 
 We will investigate every complaint, but you may not receive a direct response.
diff --git a/synth.metadata b/synth.metadata
index dd61078087..417c4bc21c 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-bigtable.git",
-        "sha": "fc741645536e01fac772136bc8346f73ff95e600"
+        "sha": "0809d8fe3d8a8a59d9fcaf85a2c20fc4eeeacc9e"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "9593c3b5b714cc9b17c445aee8834ac2b4b9348b"
+        "sha": "f68649c5f26bcff6817c6d21e90dac0fc71fef8e"
       }
     }
   ],