Version 1.16.0-dev.5.1

Cherry-pick 4bed72be27baace2473553dc282a847679191dfe to dev
Cherry-pick bcd8ef3dea0caffa6a715191cc937fe48076dc81 to dev
diff --git a/tools/VERSION b/tools/VERSION
index 933c4c2..0e28d7b 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -28,4 +28,4 @@
 MINOR 16
 PATCH 0
 PRERELEASE 5
-PRERELEASE_PATCH 0
+PRERELEASE_PATCH 1