Less cool news: "SeaMonkey 2.49.5 will be the last version supporting Windows XP/Server 2003 and Vista/Server 2008." (https://www.seamonkey-project.org/releases/legacy)
Yep, the "let's drop everything which has been stabilised and working fine for 15 years" frenzy has reached them too :-(
Personally, I don't use XP, but I'm stuck with 2.49.1 because they broke GTK2 support between that version and 2.49.5. When I'll have enough, I'll switch to another browser, perhaps Palemoon which still had GTK2 support last time I built it (28.6.1). /Edit:/ Just checked on Palemoon forum: they say they will support GTK2 until at least 2024.
https://msfn.org/board/topic/180462-my-browser-builds-part-2...
https://msfn.org/board/topic/178380-extreme-explorer-360-chr...
XP is still huge in China https://www.maxthon.com
I use that on my XP VM
You can find all here http://www.xpbrowsers.com
https://www.zdnet.com/article/bug-that-grants-admin-rights-t...
For me, the last version of windows that was usable out of the box was 2k. The interface was clean and intuitive. With some work, you could make XP behave like 2k. Not sure about 7 but doing that in 10 appears to be impossible. (I've tried to help family members make sense of it, with no luck.) If I had to use windows for something, that's the UI I'd hope for. I don't get what's going on with it any more. I'd take it over macos but that's just because I have some muscle memory for the keyboard shortcuts and I find the macos shell hyper unintuitive too.
I use xfce because it feel like just enough UI to run the two GUI applications I use: xterm and a browser. Maybe it's time to use SeaMonkey again. Used to love it.