For context, Debian dropped support for 586 in Debian Stretch (9.0), release in 2017.
I have not done the legwork to compare this to other distros, but Debian generally supports older hardware than most other major mainstream desktop distros.
Gentoo still has support for i486, although you have to scroll all the way down to the bottom of the install media downloads page to find it. (Admittedly, this is in part because the list is in alphabetical order by arch. 😅 )
For context, Debian dropped support for 586 in Debian Stretch (9.0), release in 2017.
I have not done the legwork to compare this to other distros, but Debian generally supports older hardware than most other major mainstream desktop distros.
Slackware probably still supports Babbage’s Difference Engine.
Yes, and this means all the “light weight”, “legacy hardware” distros require at least a Pentium Pro.
The only binary distro I know that still runs on Pentium is Adelie.
Gentoo still has support for i486, although you have to scroll all the way down to the bottom of the install media downloads page to find it. (Admittedly, this is in part because the list is in alphabetical order by arch. 😅 )