Version 2.9.1

* Cherry-pick 27ab7a219ebe816e4c78683bbae82a8fee881531 to stable
* Cherry-pick 7b26f6e29dfea2c7d52a1fb091466d6b71c80c05 to stable
diff --git a/tools/VERSION b/tools/VERSION
index 7eadffb..e82a19b 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -32,7 +32,7 @@
 CHANNEL stable
 MAJOR 2
 MINOR 9
-PATCH 0
+PATCH 1
 PRERELEASE 0
 PRERELEASE_PATCH 0
 ABI_VERSION 38