updated version to 2.2.0

Change-Id: Ib9c26b00a2bbe1a5519a96b5b977a62827a1c90a
diff --git a/base/version.gradle b/base/version.gradle
index c3dc9c5..2e946e6 100644
--- a/base/version.gradle
+++ b/base/version.gradle
@@ -1,6 +1,6 @@
-project.ext.baseVersion = '25.2.0-rc3'
-project.ext.buildVersion = '2.2.0-rc3'
-project.ext.experimentalVersion = '0.8.0-rc3'
+project.ext.baseVersion = '25.2.0'
+project.ext.buildVersion = '2.2.0'
+project.ext.experimentalVersion = '0.8.0'
 project.ext.experimentalGradleVersion = '2.14'
 
 // This counter should be incremented every time the api is changed in not backward-compatible way,