Version 2.8.0-dev.20.1

Merge commit '803c0cd8da8125af1fe3a73970d66af892775fb7' into beta
diff --git a/tools/VERSION b/tools/VERSION
index 41b44a4..b8c543b 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 beta
 MAJOR 2
 MINOR 8
 PATCH 0
 PRERELEASE 20
-PRERELEASE_PATCH 0
+PRERELEASE_PATCH 1
 ABI_VERSION 32
 OLDEST_SUPPORTED_ABI_VERSION 32