Updates to slug, OCI image, and release artifact retention policies
Change effective on 01 October 2025
As of Oct 1, 2025, Heroku destroys slugs, OCI images, and other release artifacts associated with releases that are older than 30 days and older than 20 releases or unassociated with a release.
The status of a release that have had its associated release artifact destroyed is expired. Rollback to expired releases is not supported.
Previously, the retention policy for Fir-generation apps was 30 days and 100 releases, and Cedar-generation apps had unlimited retention. See Release Retention Policy.