The D1 undelete window has been reduced to a strict seven‑day period, meaning any request to restore a database older than that will be rejected. Teams that rely on D1 for lightweight data storage must treat accidental deletions as time‑critical events.
Change Summary
Effective immediately, the undelete endpoint validates the deletion timestamp and will only succeed if the database was removed no more than seven days ago. Requests beyond that threshold return an error response.
Operational Impact
- Automated cleanup scripts or manual deletions now require a monitoring hook that can trigger an
undeletecall within the allowed window. - Existing recovery playbooks that assumed indefinite restoration must be revised to include a deadline check.
- Metrics around deletion events become more valuable; logging the exact time of deletion enables quick eligibility verification.
Design Considerations
When building services that store data in D1, consider adding one of the following safeguards:
- Implement a soft‑delete flag in your application layer, postponing the actual API call to delete the database until you are certain the data is no longer needed.
- Schedule periodic snapshots of critical D1 databases to an external storage service, providing a fallback that is not subject to the seven‑day limit.
- Integrate alerting on delete operations so that the responsible team receives immediate notification and can act if the deletion was unintended.
Related CloudNinjas coverage: hands-on guides.
What This Means For Practitioners
Review any existing D1 deletion workflows and ensure they include a rapid response path for restoration. Update incident‑response runbooks to reference the seven‑day cutoff, and consider complementary backup strategies if longer retention is required.