DO NOT MERGE - Update versions to 26.0.0-beta2

Test: N/A
Change-Id: I0cad0653d02a6db6a8e96b410c11550466b8fa62
diff --git a/buildSrc/versions.gradle b/buildSrc/versions.gradle
index 5814016..5065427 100644
--- a/buildSrc/versions.gradle
+++ b/buildSrc/versions.gradle
@@ -17,7 +17,7 @@
 ext['android.builder.sdkDownload'] = false
 
 // Version code of the support library components.
-ext.supportVersion = "26.0.0-SNAPSHOT"
+ext.supportVersion = "26.0.0-beta2"
 
 // This number gets incremented for each public release.
 ext.extraVersion = 46