cloudflare/workers-sdk miniflare@5.20261113.0-beta

on GitHub

Minor Changes

• #16735 f005593 Thanks @leostera! - Use the local simulator for Artifacts bindings that omit remote

  Behavior change: Artifacts bindings now default to the local simulator during development, like KV, R2 and D1. Previously, an omitted remote in Wrangler and the Vite plugin used the deployed Artifacts resource. If you want deployed repos in wrangler dev or vite dev, set "remote": true on the binding (dev: { remote: true } in cloudflare.config.ts). Artifacts is in beta, so this ships as a minor release.

  While remote is omitted, wrangler dev, getPlatformProxy() and the Vite plugin warn when remote bindings are enabled, once for each binding rather than on every config reload: "Artifacts binding REPOS uses the local simulator by default. Set remote: true to use deployed repos, or remote: false to silence this warning." Workers Vitest and wrangler dev --local already used the simulator, so they don't warn. Local Artifacts needs no Cloudflare credentials, but requires Git 2.32 or newer on the host.

• #16589 856842e Thanks @mkuritsu! - Support Browser Run quick actions in local development

  env.BROWSER.quickAction(action, options) now works with a local browser binding instead of failing with The RPC receiver does not implement the method "quickAction". The screenshot, pdf, content, markdown, snapshot, scrape, links and accessibilityTree actions run in a local Chrome and return the same responses and errors as Browser Run.

  Workers AI isn't available locally, so the json action returns placeholder data shaped like response_format.json_schema and logs a warning. The kitesurf browser isn't supported locally either. Set "remote": true on the browser binding to use Browser Run for these.

Patch Changes

• #16771 61eacca Thanks @leostera! - Fix several local Artifacts emulator issues found while testing it as a customer

  • The local Git remote keeps its port across dev server restarts, so existing clones keep working, and Wrangler prints each namespace's Git remote prefix at startup. If another process holds the port, a new one is chosen and printed.
  • Workers Vitest no longer logs a caught ArtifactsError as an uncaught exception. Local bindings now throw errors in the caller's isolate, so they never cross a workerd RPC boundary.
  • A push containing a file larger than 32 MiB is rejected, as in production, and a file at that limit can still be read. Reading a larger file throws ArtifactsError with code MEMORY_LIMIT instead of a raw RPC serialization error.
  • listTokens() includes revoked and expired tokens with state: "revoked" or state: "expired", listed after all active tokens. An expired token can no longer be revoked: revokeToken() returns false and its state stays "expired".
  • Results now follow the published binding types: list() items have no remote, log() caps limit at 1000 instead of rejecting it, and readTree() and readCommit() throw INTERNAL_ERROR for an object of another type instead of returning null.

• #16589 856842e Thanks @mkuritsu! - Clear a local Browser Run session's connectionId when its client disconnects

  Sessions connected through /v1/devtools/browser/:sessionId, which current versions of @cloudflare/puppeteer and @cloudflare/playwright use, kept reporting a connectionId after the client closed its WebSocket. Reusing a session by picking one without a connectionId therefore never found a free session in local development.

• #16849 3cea40b Thanks @dependabot! - Update DEFAULT_COMPAT_DATE to 2026-11-12

  Use the bundled workerd release's compatibility date by default when scaffolding new projects or when no compatibility date is configured.

• #16886 63eb6da Thanks @dependabot! - Update DEFAULT_COMPAT_DATE to 2026-11-13

  Use the bundled workerd release's compatibility date by default when scaffolding new projects or when no compatibility date is configured.

• #16849 3cea40b Thanks @dependabot! - Update dependencies of "miniflare", "wrangler"

  The following dependency versions have been updated:

  Dependency	From	To
  @cloudflare/workers-types	^5.20261110.1	^5.20261112.1
  workerd	1.20261110.1	1.20261112.1

• #16886 63eb6da Thanks @dependabot! - Update dependencies of "miniflare", "wrangler"

  The following dependency versions have been updated:

  Dependency	From	To
  @cloudflare/workers-types	^5.20261112.1	^5.20261113.1
  workerd	1.20261112.1	1.20261113.1