We’re planning a migration from App Store Server Notifications V1 to V2 and are reviewing our rollback strategy before enabling V2 in production.
While researching, we found TN3180:
TN3180: Reverting to App Store Server Notifications V1 | Apple Developer Documentation
The technote appears to describe reverting App Store Server Notifications from V2 back to V1 using the Modify an App endpoint.
Before proceeding, we’d like to clarify a few points:
- Is V2 → V1 rollback via the Modify App endpoint fully supported for production applications?
- If an application is reverted from V2 back to V1, can it later be migrated back to V2 again?
- During a rollback, should developers expect any overlap period where both V1 and V2 notifications may be delivered due to retries or notifications already in flight?
Our goal is to understand whether the V2 → V1 capability should be treated as a fully supported operational rollback mechanism or as an emergency recovery path intended only for exceptional situations.
Thank you for any clarification.