Version 1.23.0-dev.9.1

Cherry-pick f212815ca303b5067d108554045229b2a475ef77 into dev
Cherry-pick 5dfc281f2f34165d3f0c1e96204c530e35dd200a into dev
diff --git a/tools/VERSION b/tools/VERSION
index 6605793..9aa7e6f6 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -28,4 +28,4 @@
 MINOR 23
 PATCH 0
 PRERELEASE 9
-PRERELEASE_PATCH 0
+PRERELEASE_PATCH 1