Miniflare

Updated the Vite plugin to convert Miniflare options to a config-based shape for dev and preview sessions. This change is internal and should not affect users.

Introduces local-dev observability for `wrangler dev` and the Vite plugin, capturing detailed traces of Worker invocations. Also improves local development recovery by automatically restarting the Workers runtime after crashes.

This release introduces local development observability features, allowing detailed tracing of Worker invocations. It also includes dependency updates and bug fixes for queue batch errors, image handling, and runtime crash recovery in local development.

Miniflare now exposes `listDurableObjectIds()` for listing persisted Durable Object instance IDs. The Vitest pool has been updated to use this new API internally.

This release introduces support for Queues across separate local development processes and updates local rate limiting logic to key counters by `namespace_id` for production parity. Internal dependencies were also refactored to improve ESM compatibility.

This patch primarily addresses security vulnerabilities by updating the `ws` dependency and improves local development reliability by enhancing error reporting and adding self-healing for the Browser Run binding cache. It also corrects an issue with host validation for cdn-cgi routes in Miniflare.

This patch release primarily updates internal dependencies, including workerd, and fixes a critical race condition affecting Browser Run on Windows when launching Chrome.

This patch addresses a bug in the local explorer where Miniflare's modification of host and origin headers caused same-origin requests to be blocked when routes were configured.

This release introduces experimental local explorer endpoints for DO namespaces and objects, fixes a bug preventing AI Search bindings from working in local development, and improves Miniflare's cache directory detection for better package manager compatibility.

This release introduces experimental support for serving the local explorer UI from Miniflare and adds dark mode capabilities to the UI. A new Cloudflare logo outline favicon was also implemented.

This minor release introduces support for unbound Durable Objects within Miniflare and Wrangler.

This release introduces a new callback option in Miniflare for handling dev registry updates and updates the underlying browser rendering engine for local development.

This release introduces Dev Registry support for cross-process local development features like Durable Objects and service bindings, alongside bug fixes for error preservation and expanded support for Mixed Mode resources in Wrangler.

This release introduces the `defaultPersistRoot` option for Miniflare to better manage persistence paths and resolves a conflict between the KV and secrets store plugins. It also includes dependency updates and a visual refresh for `wrangler dev`.

This release updates internal dependencies, notably upgrading miniflare to v4.20250523.0 and wrangler to v4.17.0, and adjusts internal configuration to use Miniflare’s new default persistence root.

This patch release introduces support for mixed-mode service bindings in Miniflare and fixes an issue where the CF-Connecting-IP header was not being stripped from outbound requests. It also ensures explicit starting of the fetch proxy message port.

This patch release includes an internal refactor moving local analytics engine support from Wrangler to Miniflare and updates dependencies, notably Miniflare.

This patch release fixes a critical bug causing the dev server to crash upon config file updates by correctly disposing of the Miniflare instance. It also updates several dependencies.

This patch introduces the experimental `unsafeInspectorProxy` option to Miniflare for selectively exposing V8 inspector APIs for specific workers via a proxy setup on the `inspectorPort`.