Engineering Insights

DNS - Removed unused meta fields from DNS records

Cloudflare is removing five fields from the meta object of DNS records. These fields have been unused for more than a year and are no longer set on new records. This change may take up to four weeks to fully roll out. The affected fields are: the auto_added boolean the managed_by_apps boolean and corresponding apps_install_id the managed_by_argo_tunnel boolean and corresponding argo_tunnel_id An example record returned from the API would now look like the following: { "result": { "id":

Enterprise teams can now ship faster without build queues

On-demand concurrent builds automatically and dynamically scale builds, increasing build capacity and shipping velocity. Starting today, new projects in Enterprise teams will use on-demand concurrency by default to eliminate build queue bottlenecks. You can turn this feature on for existing projects at any time with or enable it at the .urgent on-demand concurrent buildsproject level You are charged for on-demand concurrency based on the number of 10-minute build slots required to allow the bui

OpenAI o3-mini System Card

This report outlines the safety work carried out for the OpenAI o3-mini model, including safety evaluations, external red teaming, and Preparedness Framework evaluations.

OpenAI o3-mini

Mini-R1: Reproduce Deepseek R1 „aha moment“ a RL tutorial

Workers for Platforms - Workers for Platforms now supports Static Assets

Workers for Platforms customers can now attach static assets (HTML, CSS, JavaScript, images) directly to User Workers, removing the need to host separate infrastructure to serve the assets. This allows your platform to serve entire front-end applications from Cloudflare's global edge, utilizing caching for fast load times, while supporting dynamic logic within the same Worker. Cloudflare automatically scales its infrastructure to handle high traffic volumes, enabling you to focus on building fea

Workers - Transform HTML quickly with streaming content

You can now transform HTML elements with streamed content using HTMLRewriter. Methods like replace, append, and prepend now accept Response and ReadableStream values as Content. This can be helpful in a variety of situations. For instance, you may have a Worker in front of an origin, and want to replace an element with content from a different source. Prior to this change, you would have to load all of the content from the upstream URL and convert it into a string before replacing the element. T

The AI tools for Art Newsletter - Issue 1