ST-2026-059 · Runtimes & developer platforms
Cloudflare adds declarative Durable Object lifecycle through exports
Wrangler can use an exports map instead of migrations to declare created, deleted, renamed and transferred Durable Object classes.
Cloudflare WorkersDurable ObjectsWranglerexports
Previous state
Durable Object class lifecycle was represented through the historical migrations array.
Current state
The exports map can become the current declarative source of truth, with structured output and rename or transfer support.
Affected users
Who needs to care
Workers projects managing Durable Object class lifecycle with Wrangler.
Required response
What to do
Choose either exports or migrations, model renames and transfers explicitly and validate deployment output.
Evidence boundary
What the source does not prove
Existing migrations continue to work; exports and migrations are mutually exclusive within one Worker.
Lifecycle history
Dated event sequence
- Declarative lifecycle released
Wrangler exports became available as an alternative lifecycle model.
Evidence ledger
First-party sources
- 01Cloudflare Developers — Workers changelog
Official product changelog · 2026-07-04
Open official source ↗