Version 2.12.0-259.8.beta

* Cherry-pick bc5952d8e8aaeb83adfe3aad2aeb1c6be22fef7e to beta
* Cherry-pick f5743e6c66d8cf4460bc1e09454d1130827f46b3 to beta
* Cherry-pick e0cd4b37cfc8a1fbc205fa1fd89c082c439db4ad to beta
* Cherry-pick 27deca1457ad6b79eb3d22f16ab45b30b754e2eb to beta
* Cherry-pick 0c3696d76a4431e90216fb28453ad4fe693aa83d to beta
* Cherry-pick 53f5179b45911fd1f937239f91e55ec8badd7975 to beta
* Cherry-pick refs/changes/00/182200/1 to beta
diff --git a/tools/VERSION b/tools/VERSION
index 9270cb0..5e91b59 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -28,4 +28,4 @@
 MINOR 12
 PATCH 0
 PRERELEASE 259
-PRERELEASE_PATCH 1
\ No newline at end of file
+PRERELEASE_PATCH 8
\ No newline at end of file