[Gradle Release Plugin] - pre tag commit:  'v2.28.0-RC1'.
diff --git a/gradle.properties b/gradle.properties
index 91f4009..d94b604 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -24,7 +24,7 @@
 signing.gnupg.executable=gpg
 signing.gnupg.useLegacyGpg=true
 
-version=2.28.0-SNAPSHOT
+version=2.28.0-RC1
 sdk_version=2.28.0
 
 javaVersion=1.8