cloudflare/workers-sdk miniflare@4.20260504.0

on GitHub

Patch Changes

• #13765 3020214 Thanks @dependabot! - Update dependencies of "miniflare", "wrangler"

  The following dependency versions have been updated:

  Dependency	From	To
  workerd	1.20260430.1	1.20260501.1

• #13800 0099265 Thanks @dependabot! - Update dependencies of "miniflare", "wrangler"

  The following dependency versions have been updated:

  Dependency	From	To
  workerd	1.20260501.1	1.20260504.1

• #13737 bb27219 Thanks @ruifigueira! - Fix race condition that broke Browser Run on Windows when Chrome had not yet started accepting connections

  When Miniflare launched Chrome for Browser Run bindings, it returned the WebSocket endpoint as soon as Chrome printed its DevTools listening on ws://... banner. On Windows the underlying listening socket is occasionally not yet accepting connections at that point, causing the first request from workerd to Chrome to fail with ConnectEx (#1225) The remote computer refused the network connection. and the user worker to receive an error response from /v1/acquire.

  Miniflare now probes Chrome's /json/version HTTP endpoint with retry/backoff after the banner is logged, only declaring the browser ready once the socket actually accepts connections. As an additional safety net, the browser binding worker also retries transient ConnectEx/WSARecv failures when establishing connections to Chrome.

• #13767 12fb5db Thanks @edmundhung! - Fix local explorer startup in Yarn Plug'n'Play projects by copying the explorer UI assets to a real temporary directory before registering the workerd disk service.