http://dacxzjk3kq5mmepbdd3ai2ifynlzxsnpl2cnkfhridqfywihrfftapid.onion/help/development/deprecation_guidelines/index.md
Most breaking changes that are approved will fall into at least one of these categories:
The impact of the breaking change has been fully mitigated via an automated migration that requires no action from the customer.
The breaking change will have negligible customer impact as measured by actual product usage tracking across GitLab Self-Managed, GitLab.com, and GitLab Dedicated.