Learn about new MySQL releases, technical articles, events and more.
Previews are for testing of features, not of versions.
Previews are by definition a bit "rough around the edges". They have no inherent level of maturity — they are not pre-alpha, or alpha, or beta, or RC, or GA. They are a new way to do "release early & release often" for those who want to get things early, without MySQL tying itself into a promise on the specific delivery release.
