grue, 1 year ago

Linux broke compatibility with 386 back in 2012. The kernel maintainers also began considering dropping compatibility with 486 late last year, but as far as I can tell they haven’t actually gone through with it yet (apparently it’s likely to be coming in 6.2).

So, strictly speaking: yes, almost any computer that was ever capable of running Linux should still be capable of running the newest kernel version, with the sole exception of 386s.

Whether it can actually do anything useful beyond getting to a command prompt on a serial terminal is another issue entirely.