cloudflare--workers-sdk/.changeset/remove-service-environments.md

wrangler

wrangler
minor

Remove support for service environments and the legacy_env configuration field

Service environments have been removed. Wrangler now always deploys each environment as its own Worker named <name>-<environment>, which matches the behaviour of the previous default (legacy_env = true). The --legacy-env CLI flag has been removed, and the legacy_env configuration field is no longer supported — including it in your configuration file will now raise an error.

Because legacy_env = true was already the default, removing the field will not change how your Worker is deployed. If you were relying on service environments (legacy_env = false), each environment will now be deployed as a standalone Worker instead of as an environment of a single Worker. See https://developers.cloudflare.com/workers/wrangler/environments/ for more information.