Engineering Insights

Workers - Set breakpoints and debug your Workers tests with @cloudflare/vitest-pool-workers

You can now debug your Workers tests with our Vitest integration by running the following command: vitest --inspect --no-file-parallelism Attach a debugger to the port 9229 and you can start stepping through your Workers tests. This is available with @cloudflare/vitest-pool-workers v0.7.5 or later. Learn more in our documentation.

IO devices and latency

Non-volatile storage is a cornerstone of modern computer systems.Every modern photo, email, bank balance, medical record, and other critical pieces of data are kept on digital storage devices, often replicated many times over for added durability. Non-volatile storage, or colloquially just "disk", can store binary data even when the computer it is attached to is powered off.Computers have other forms of volatile storage such as CPU registers, CPU cache, and random-access memory, all of which are

Driving growth and ‘WOW’ moments with OpenAI

LY Corporation: Driving growth and ‘WOW’ moments with OpenAI

Email Routing - Threaded replies now possible in Email Workers

We’re removing some of the restrictions in Email Routing so that AI Agents and task automation can better handle email workflows, including how Workers can reply to incoming emails. It's now possible to keep a threaded email conversation with an Email Worker script as long as: The incoming email has to have valid DMARC. The email can only be replied to once in the same EmailMessage event. The recipient in the reply must match the incoming sender. The outgoing sender domain must match the same do

Welcome Gemma 3: Google's all new multimodal, multilingual, long context open LLM

Open R1: Update #3

New tools for building agents

WAF - WAF Release - 2025-03-11 - Emergency

RulesetRule IDLegacy Rule IDDescriptionPrevious ActionNew ActionComments Cloudflare Managed Ruleset0823d16dd8b94cc6b27a9ab173febb31 100731Apache Camel - Code Injection - CVE:CVE-2025-27636N/ABlockThis is a New Detection