github cloudflare/workers-sdk miniflare@5.20260915.0-alpha

Minor Changes

  • #15486 d3565a5 Thanks @tpmmorris! - Add production-compatible KV bulk write and delete routes to Local Explorer

    API clients can now write and delete multiple local KV entries by changing only their Cloudflare API base URL. The new routes support production request and response shapes, including base64 values, expiration options, and metadata.

  • #15453 ca71205 Thanks @G4brym! - Remove the gated Web Search binding and Wrangler command

    The unreleased search binding and its experimental command have been removed from Wrangler, Miniflare, and configuration APIs.

Patch Changes

  • #15633 7db596c Thanks @dependabot! - Update dependencies of "miniflare", "wrangler"

    The following dependency versions have been updated:

    Dependency From To
    @cloudflare/workers-types ^5.20260911.1 ^5.20260915.1
    workerd 1.20260911.1 1.20260915.1
  • #15420 e35c4a1 Thanks @manthaaaaan! - Fix Infinity/-Infinity being emitted as an invalid bare identifier in D1 export

  • #15527 1015cfb Thanks @devaniketh! - Scope Durable Object and Workflow local explorer peers by storageScope

    Restricts Durable Object and Workflow peer discovery and owner resolution to Miniflare peers sharing the same storageScope when Shared Storage is enabled. This ensures consistency with KV, D1, and R2 local explorer behaviors and prevents cross-project access to local development state across instances with different persistence roots.

  • #15399 982b806 Thanks @tpmmorris! - Improve over-limit run_worker_first errors when duplicate rules are present

    The error now reports distinct and duplicate-entry counts and lists duplicated rules, making it clear when removing redundant entries can bring the configuration within the limit.

    Too many `run_worker_first` rules were provided; 105 rules provided (99 distinct, 6 duplicate entries) exceeds max of 100. Note: duplicate entries count towards the route limit. Ensure that no duplicate rules are present in your `run_worker_first` configuration.
    
    The duplicated rules found are:
    - "/rule/0"
    - "/rule/1"
    - "/rule/2"
    - "/rule/3"
    - "/rule/4"
    ...and 1 more duplicated rule.
    
  • #15397 641df47 Thanks @james-elicx! - Reduce Miniflare's bundle size by sharing Zod across embedded workers

    Workflows, Email Store, and Local Explorer now import Zod from Miniflare's existing workerd extension instead of each bundling a separate copy.

Don't miss a new workers-sdk release

NewReleases is sending notifications on new releases.