Version 2.4.0

Merge commit '5a6a58184403dccdae326dcde1af0fbbb05a4a53' into stable
diff --git a/tools/VERSION b/tools/VERSION
index 57a80b5..5912f77 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -29,11 +29,11 @@
 #  * Deprecating an old ABI version:
 #     - increase OLDEST_SUPPORTED_ABI_VERSION to the version that is supported.
 #
-CHANNEL dev
+CHANNEL stable
 MAJOR 2
 MINOR 4
 PATCH 0
 PRERELEASE 0
-PRERELEASE_PATCH 1
+PRERELEASE_PATCH 0
 ABI_VERSION 5
 OLDEST_SUPPORTED_ABI_VERSION 3