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Hostname support in Group Replication Whitelist in 5.7!

Always having in mind providing the latest and the greatest features to our users, we decided to backport Hostname support in Group Replication Whitelist, starting in 5.7.21. Please check the developer blog in here and the official documentation here.

Download MySQL 5.7.21 GA release, and let us know your feedback or doubts through comments on this blog or MySQL bugs.