Version 1.15.0-dev.4.0

Merge commit '78b0f6f353b5349a50c3e38ef5f44ded1f7e1ee4' into dev
diff --git a/tools/VERSION b/tools/VERSION
index c52f0e4..888fdb3 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -23,9 +23,9 @@
 #  * Making cherry-picks to stable channel
 #     - increase PATCH by 1
 #
-CHANNEL be
+CHANNEL dev
 MAJOR 1
 MINOR 15
 PATCH 0
-PRERELEASE 0
+PRERELEASE 4
 PRERELEASE_PATCH 0