> BTW, user-agent is a hell anyway. Just looking at this user-agent that OP posted, macOS still identifies itself as "Mac OS X", still is based on Mozilla/5.0(!

> BTW, user-agent is a hell anyway. Just looking at this user-agent that OP posted, macOS still identifies itself as "Mac OS X", still is based on Mozilla/5.0(!), still identifies itself as KHTML enginee (compatible with Gecko), and so on... This is why we have some more developers spending time on creating FOSS libraries that parse user agent strings and tell you exactly what the browser claims to be, with attributes like browser name, OS, version, browser engine, etc. All these libraries need updates (or at least a cursory look) whenever a new browser version is released so that they can continue identifying browsers correctly. All those people, bless them for this work, could be doing something else in an alternate universe. Notwithstanding feature detection and graceful downgrades, browser user agent strings seem to be very commonly used to decide the behavior of many websites.