API Stability and Deprecation Policy
This document covers API stability and the deprecation policy for Sigstore APIs and client libraries.
What does this cover?
The deprecation policy encompasses:
- The client API for Fulcio
- The client API for Rekor
- Features provided by cosign
- The sigstore/sigstore client library
- The cosign/pkg/oci client library
What are the different API stability levels?
There are three levels of stability and support:
- Features may be shipped with bugs
- Feature is not yet recommended for production use
- Features will be available for the next few releases
- Generally Available
- The feature will be available and supported
What is the deprecation policy at each level?
Experimental: Features can be changed or deprecated without notice
Beta: Backwards incompatible changes require at least 2 months notice
Generally Available: Deprecating features requries at least 6 months notice
Note: These guidelines will be followed on a best-effort basis. Since Sigstore is a security project, maintainers reserve the right to break things faster if necessary to address a security issue.
A list of features and associated levels will be available in each repostory under FEATURES.md. A deprecation table will be available in each repository under DEPRECATIONS.md.