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December 08, 2025 6:00 AM
Python Workers redux: fast cold starts, packages, and a uv-first workflow
Recent advancements in Cloudflare Python Workers means fast cold starts, comprehensive package support, and a great developer experience. We explain how they were achieved and show how Python can be used to build serverless applications on Cloudflare....
November 12, 2025 2:00 PM
Connecting to production: the architecture of remote bindings
Remote bindings allow you to connect your local Worker code to deployed Cloudflare resources like R2 and D1. Come along on the technical journey of how we built this feature to create a seamless local development experience....
November 10, 2025 2:00 PM
A closer look at Python Workflows, now in beta
Cloudflare Workflows, our durable execution engine for running multi-step applications, now supports Python. That means less friction, more possibilities, and another reason to build on Cloudflare....
November 05, 2025 2:00 PM
How Workers VPC Services connects to your regional private networks from anywhere in the world
Workers VPC Services enter open beta today. We look under the hood to see how Workers VPC connects your globally-deployed Workers to your regional private networks by using Cloudflare's global network, while abstracting cross-cloud networking complexity....
November 04, 2025 2:00 PM
Building a better testing experience for Workflows, our durable execution engine for multi-step applications
End-to-end testing for Cloudflare Workflows was challenging. We're introducing first-class support for Workflows in cloudflare:test, enabling full introspection, mocking, and isolated, reliable tests for your most complex applications....
October 28, 2025 1:00 PM
Keeping the Internet fast and secure: introducing Merkle Tree Certificates
Cloudflare is launching an experiment with Chrome to evaluate fast, scalable, and quantum-ready Merkle Tree Certificates, all without degrading performance or changing WebPKI trust relationships....
October 28, 2025 12:00 PM
Announcing Workers automatic tracing, now in open beta
Cloudflare Workers' support for automatic tracing is now in open beta! Export traces to any OpenTelemetry-compatible provider for deeper application observability -- no code changes required...
October 14, 2025 8:00 PM
Unpacking Cloudflare Workers CPU Performance Benchmarks
Cloudflare investigated CPU performance benchmark results for Workers, uncovering and fixing issues in infrastructure, V8 garbage collection, and OpenNext optimizations. ...
September 30, 2025 3:50 PM
Payload on Workers: a full-fledged CMS, running entirely on Cloudflare’s stack
We demonstrate how the open-source Payload CMS was ported to run entirely on Cloudflare's developer platform....
September 29, 2025 2:00 PM
15 years of helping build a better Internet: a look back at Birthday Week 2025
Rust-powered core systems, post-quantum upgrades, developer access for students, PlanetScale integration, open-source partnerships, and our biggest internship program ever — 1,111 interns in 2026....
September 26, 2025 1:00 PM
Code Mode: the better way to use MCP
It turns out we've all been using MCP wrong. Most agents today use MCP by exposing the "tools" directly to the LLM....
September 26, 2025 1:00 PM
Eliminating Cold Starts 2: shard and conquer
We reduced Cloudflare Workers cold starts by 10x by optimistically routing to servers with already-loaded Workers. Learn how we did it here....
September 25, 2025 2:00 PM
Cloudflare's developer platform keeps getting better, faster, and more powerful. Here's everything that's new.
Cloudflare's developer platform keeps getting better, faster, and more powerful. Here's everything that's new....
September 25, 2025 2:00 PM
Partnering to make full-stack fast: deploy PlanetScale databases directly from Workers
We’ve teamed up with PlanetScale to make shipping full-stack applications on Cloudflare Workers even easier. ...
September 25, 2025 2:00 PM
Safe in the sandbox: security hardening for Cloudflare Workers
We are further hardening Cloudflare Workers with the latest software and hardware features. We use defense-in-depth, including V8 sandboxes and the CPU's memory protection keys to keep your data safe....