Version 2.13.0-211.6.beta

* Cherry-pick e8d53cff924214ea8dd20b36bb82f7d2dde7a131 to beta
* Cherry-pick ea9c6484f1412c09f19ce570eb1617017084a642 to beta
* Cherry-pick c8b3fb1e7163ba6000b89aa2bb4f30b39ae82acb to beta
* Cherry-pick ce5a1c2392debce967415d4c09359ff2555e3588 to beta
* Cherry-pick adc36a6563614a7c3ba29d9911e57fc68e7d9ac0 to beta
diff --git a/tools/VERSION b/tools/VERSION
index fa9f98f..8618025 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -28,4 +28,4 @@
 MINOR 13
 PATCH 0
 PRERELEASE 211
-PRERELEASE_PATCH 1
\ No newline at end of file
+PRERELEASE_PATCH 6
\ No newline at end of file