A ReliCSS run sorts a stylesheet’s hacks into dead-browser fossils, fragile IE8 workarounds and leftover vendor prefixes. Here is how I read that output on WordPress sites, plus the case where :has() replaces the old checkbox hack.
Research PINNs are routinely tens to hundreds of times bigger than the problem needs. Burgers’ equation plateaus at about 150 parameters, and a hyperelasticity model I saw used 424x more than necessary. Start small and scale only when the physics loss will not converge.
Make WordPress published its AI guidelines: disclose AI assistance, keep contributions GPLv2-or-later, and own the code either way. Includes the AJAX save function AI keeps getting wrong and the version that passes review.
The WordPress 6.9 “Gene” retrospective is more useful than the release notes. Two triage leads in different time zones, too many manual release steps, and contributor pairing that actually worked. Here is what that means if you run client sites on Core.
WordPress 6.9.1 RC1 closes 23 core bugs and 25 Block Editor issues, including the mail function error, the double-escaped class names from the HTML API, and the broken Add Plugins screen. Plus how to test the RC on staging with WP-CLI.
The core team wants the legacy 1024-bit certificates out of the WordPress root bundle before 7.0 ships in April 2026. NIST disallowed those keys in 2013, and CentOS 7, the main reason they stayed, went end of life in mid-2024.
How I use Cursor, Copilot, and Claude on real client work: mapping an unfamiliar legacy codebase, moving a decade-old build stack to Vite, and getting tests that cover failure modes instead of just the happy path.
Unbalanced cohorts do not invalidate an A/B test. What matters is that assignment was random and independent of anything that existed before the test. Includes why imbalance happens and a hash-based way to assign groups in PHP without a database lookup.
WordPress now has a repository for AI agent skills, starting with wp-playground. It uses the Playground CLI so an agent can mount a plugin or theme, wait for WordPress to be ready, log in, and check its own work in seconds.
Notes from the January 28, 2026 WordPress dev chat: the 6.9.1 maintenance release on February 3, the 7.0 release squad and bug scrubs, and pattern overrides in Gutenberg 22.4.