Workers

Enable automatic tracing on your Workers, giving you detailed metadata and timing information for every operation your Worker performs. Tracing helps you identify performance bottlenecks, resolve errors, and understand how your Worker interacts with other services on the Workers platform.…

Workers, including those using Durable Objects and Browser Rendering, may now process WebSocket messages up to 32 MiB in size. Previously, this limit was 1 MiB. This change allows Workers to handle use cases requiring large message sizes, such as…

You can now access preview URLs directly from the build details page, making it easier to test your changes when reviewing builds in the dashboard. What's new A Preview button now appears in the top-right corner of the build details…

The Cloudflare Vite plugin now supports TanStack Start apps. Get started with new or existing projects. New projects Create a new TanStack Start project that uses the Cloudflare Vite plugin via the create-cloudflare CLI: npm npm create cloudflare@latest -- my-tanstack-start-app…

Previously, if you wanted to develop or deploy a worker with attached resources, you'd have to first manually create the desired resources. Now, if your Wrangler configuration file includes a KV namespace, D1 database, or R2 bucket that does not…

We have updated the default behavior for Cloudflare Workers Preview URLs. Going forward, if a preview URL setting is not explicitly configured during deployment, its default behavior will automatically match the setting of your workers.dev subdomain. This change is intended…