> and check the date too.

This, a billion times.

I wonder if there is a way to voluntarily downrank pages in search engines so that answers that are obsolete do not show up first in results.

If I'm having issues with Ubuntu 22.04, the solution to a similar problem in Ubuntu 10.04 is very much likely to be wrong.

I would be happy enough if Stackoverflow put as much emphasis on citing version numbers as it does the less critical x-y problem. At least the former benefits future readers.

Yeah, version info is more important than date, really.