Every guide, comparison and detector run we have published under browser-engine.
Any page can make Chrome download gigabytes of on-device AI models, once per profile, through that profile's proxy. The two obvious switches either change what the page sees or keep the download and stop security updates, so the fix went into the engine.
Chrome 153 reached the stable channel on 2026-08-26 and the AntiBrow kernel now builds on it. The number in your user agent is the least interesting part of that. Here is what a detector reads instead, and why moving every profile to the newest build on release day is its own tell.