api-sunset-date-changed-too-small
Modified sunset date doesn't meet min required deprecation days.
areapathskindlifecycleactionchange
Breaking change (level: error)
A deprecation here is missing or has an invalid sunset date, so clients are not told how long they have before removal.
How to handle this change
When oasdiff flags api-sunset-date-changed-too-small, you have a few ways to respond:
- Find a backward-compatible alternative. Redesign the change so clients that followed the old contract keep working, and agree on the approach with whoever introduced it.
- Release it in a new API version. Keep the current contract and introduce the change in a new version, then deprecate the old one with a sunset date so clients have time to migrate.
- Accept it as a deliberate breaking change. Sometimes a breaking change is unavoidable, such as an urgent or security fix. Approve it knowingly, document it in your release notes, and tell affected clients. This should be the exception, not a routine way of working.
If oasdiff's verdict does not match your API's compatibility policy, you can also change how it treats api-sunset-date-changed-too-small with a severity-levels file:
Put one rule per line; the level can be err, warn, or info, or none to disable the check entirely:
# severity.txt
api-sunset-date-changed-too-small warnThen pass it to oasdiff:
oasdiff changelog base.yaml revision.yaml --severity-levels severity.txt