Last month, we announced that depending on readiness of the codebase to 11.0.0 beta requirements today on April 26, 2024, Drupal 11 would be released either on the week of July 29, 2024 or the week of December 9, 2024.
The Drupal 11 codebase progressed a lot since then, it is based on Symfony 7 and jQuery 4, and the deprecated APIs have been removed. However, while we are making rapid progress on PHPUnit 10 support, we need to fully complete that update to PHPUnit 10 before a beta release, which will not quite be ready for next week.
To help the community prepare for Drupal 11, we decided to make Drupal 11.0.0-alpha1 available next week (on the week of April 29, 2024), alongside Drupal 10.3.0-beta1. This also means that those attending DrupalCon Portland 2024 the week after can already try out the first tagged version of Drupal 11, and modules can add Drupal 11 compatibility confident that all runtime APIs are stable.
We are giving ourselves an additional couple of weeks to run down the last PHPUnit 10 issues and any other remaining beta blockers ready for a stable Drupal 11.0.0 release on the week of July 29, 2024. Assuming all goes well, we'll make a final decision by May 10th and release a beta shortly afterwards.