On Tuesday July 23rd we'll be working on upgrading all preview instances to 2019.7, with the production upgrades scheduled for Tuesday July 30th. These will be zero downtime (HAZDU) updates, so there should be no impact to your community's performance. Release notes are already published, and can be found at JX 2019.7 Release Notes . We're happy to highlight improved accessibility for your communities with this release, as we have added an audio listening option as an alternative to Image Captchas during account registration.
Please do let us know if you have any questions or concerns during the release process!