diff --git a/tools/VERSION b/tools/VERSION
index 186c1b0169b..332045f12ef 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -35,5 +35,5 @@ MINOR 9
 PATCH 0
 PRERELEASE 0
 PRERELEASE_PATCH 0
-ABI_VERSION 38
-OLDEST_SUPPORTED_ABI_VERSION 38
+ABI_VERSION 39
+OLDEST_SUPPORTED_ABI_VERSION 39