Version 1.17.0-dev.6.3

Cherry-pick 'd3579131c80434941855ce9cf1ebaee85767a4aa' to dev
diff --git a/tools/VERSION b/tools/VERSION
index f0eb17c..868ff3c 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -28,4 +28,4 @@
 MINOR 17
 PATCH 0
 PRERELEASE 6
-PRERELEASE_PATCH 2
+PRERELEASE_PATCH 3