In advance of a major version update for WordPress core or Jetpack (e.g. from 5.1 to 5.2) to VIP Go, as the beta testing period begins, WordPress.com VIP will post to the VIP Lobby. The deployment of minor versions will not receive a Lobby post. Security updates will be deployed as soon as practicable, and will not receive a Lobby post.
During the run-up to a new version of WordPress, we invite our clients to run their non-production sites against
trunk (here is the core WordPress project explanation of
trunk and other SVN terms). If you’d like one or all of your non-production sites to track
trunk, please get in touch. Sites tracking trunk will be updated to the latest
trunk revision at least once a day, but we cannot guarantee the timing of this update.