Version 2.9.0-19.0.dev

Merge commit 'b5470ae013d24a6f6b5fd4bb7fb803ec24682add' into dev
diff --git a/tools/VERSION b/tools/VERSION
index df61049..fd6266b 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 be
+CHANNEL dev
 MAJOR 2
 MINOR 9
 PATCH 0
-PRERELEASE 0
+PRERELEASE 19
 PRERELEASE_PATCH 0
 ABI_VERSION 37
 OLDEST_SUPPORTED_ABI_VERSION 37