All I can say is that I started with Slackware at version 2.2. Currently I have 12.1, 12.2 and 13.1 on home computers along with Debian Squeeze. When I upgraded to Squeeze from Lenny, VMWare stopped working. When I upgrade Slackware, everything continues to function. Centos has similar upward reliability.
Posted Mar 24, 2011 17:12 UTC (Thu) by wazoox (subscriber, #69624)
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I started with Slack 3.1 IIRC, now running 13.0 on my work computer and 13.1 at home. My previous home machine was live-upgraded from 9.1 up to 12.1; then I tried skipping a couple of releases and went directly to 13.1, but some things never worked properly (firefox > 3.0, particularly, never ran).
Then I changed the machine, and installed a fresh 13.1 :)