Breaking change deployments on GitLab.com

Changes are deployed continuously to GitLab.com. However, breaking changes can require more time to prepare for.

Breaking changes that are scheduled for the next GitLab major release (19.0) will be deployed to GitLab.com during a specific window. A contingency window (May 11 - 13, 2026) is available as a fallback if a breaking change cannot be deployed during the primary window.

This window takes place on May 4 - 6, 2026 from 09:00 UTC to 22:00 UTC.

Deprecation Impact Scope Check potential impact
The heroku/builder:22 image is deprecated Medium Project
ciJobTokenScopeAddProject GraphQL mutation is deprecated Low Project
Linux package support for Ubuntu 20.04 Medium Instance
Support for Redis 6 Low Instance
Slack slash commands Low Instance, group, project https://gitlab.com/gitlab-org/gitlab/-/work_items/569345#am-i-impacted
Trending tab in Explore projects page is deprecated Low Project
Using app passwords with Bitbucket Cloud import GitLab API Low Project https://gitlab.com/gitlab-org/gitlab/-/work_items/588961#am-i-impacted
Linux package support for SUSE distributions Low Instance
Enforce page limit for unauthenticated Projects API requests Low Project
Support for NGINX Ingress Medium Instance
Mattermost bundled with Linux package Low Instance
Support for PostgreSQL 16 Medium Instance
Support for bundled PostgreSQL, Redis, and MinIO in GitLab Helm chart Medium Instance https://docs.gitlab.com/charts/installation/migration/bundled_chart_migration/
Spamcheck support in the Linux package and GitLab Helm chart Low Instance