releases.sh

containerEngine removed from unstable_getMiniflareWorkerOptions; local testing paths rewritten

wrangler@4.117.0

July 31, 2026Workers SDKView original ↗
2 enhancementsThis release2 enhancementsImprovements to existing featuresAI-tallied from the release notes
From the original release noteView original ↗

Minor Changes

  • #14586 5a56dda Thanks @emily-shen! - Remove containerEngine from the worker options returned by unstable_getMiniflareWorkerOptions

    unstable_getMiniflareWorkerOptions no longer includes containerEngine in the returned workerOptions, since the container engine is a Miniflare instance-wide setting rather than a per-worker one. Callers that build a Miniflare instance from these options should set containerEngine at the top level instead.

Patch Changes

  • #14586 5a56dda Thanks @emily-shen! - Rewrite local testing paths (/cdn-cgi/*)

    Miniflare v5 moved its internal local testing endpoints to /cdn-cgi/local/* (and /__cf_local/* for endpoints that must remain reachable over tunnels) to prevent any potential collision with production routes. wrangler dev and the Vite plugin now transparently rewrite the old paths to the new ones, meaning you can continue to use the old paths without issue.

    These are the new paths:

    • /cdn-cgi/handler/scheduled/cdn-cgi/local/scheduled
    • /cdn-cgi/handler/email/cdn-cgi/local/email
    • /cdn-cgi/explorer/*/cdn-cgi/local/explorer/*
    • /cdn-cgi/mf/scheduled/cdn-cgi/local/scheduled (Note /cdn-cgi/mf/scheduled is already deprecated)
    • /cdn-cgi/mf/stream/*/__cf_local/stream/*
    • /cdn-cgi/mf/imagedelivery/*/__cf_local/imagedelivery/*
  • Updated dependencies [5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda]:

Fetched July 31, 2026

containerEngine removed from unstable_getMiniflareWorkerOpt… — releases.sh