cloudflare/workers-sdk miniflare@4.20260721.0

on GitHub

Minor Changes

• #14742 34430b3 Thanks @pombosilva! - Add support for redacting sensitive Workflows step output in local dev.

  Steps configured with sensitive: "output" now have their output redacted to [REDACTED] in step logs and step-output responses when running Workflows locally, matching production behavior. The real value is still passed to downstream steps, and step errors are never redacted.

Patch Changes

• #14715 42af66d Thanks @dependabot! - Update dependencies of "miniflare", "wrangler"

  The following dependency versions have been updated:

  Dependency	From	To
  @cloudflare/workers-types	^5.20260714.1	^5.20260721.1
  workerd	1.20260714.1	1.20260721.1

• #14766 4815711 Thanks @gianghungtien! - Report the Worker's error for HEAD requests instead of an internal JSON parse error

  A Worker that threw on a HEAD request (for example curl -I) logged SyntaxError: Unexpected end of JSON input from miniflare's internals rather than the actual error, and dispatchFetch() rejected with that same misleading error. workerd drops response bodies for HEAD requests, so the serialised error never reached the code that revives it.

  The error is now also carried in a header, which survives HEAD, so the original message and source-mapped stack are reported for every method. When no payload is available the reporting degrades to a plain error rather than surfacing a parse failure.