Upcoming highly critical release on May 20, 2026 (opens in new tab)

There will be a Drupal core security release for all supported branches on May 20, 2026, between 17:00 and 21:00 UTC. (To see this in your local timezone, refer to the Drupal Core Calendar.) The Drupal Security Team urges you to reserve time for core updates at that time because exploits might be developed within hours or days. Not all configurations are affected. Reserve time