When I originally installed MC I think it was 21.0.2. It was certainly pretty early and, regardless, I never had a problem with audio playback. At some point it updated itself and I ended up at 21.0.6. For the next two weeks there were frequent crashes all during audio playback. After about the 5th crash I decided I would enable logging and file a report. I ran it for a day with logging on and no crash. Of coarse, 21.0.9 was out at this point and I wondered if there was much value in a repo on an older version so I upgraded to 21.0.9.
It's been a few days now and, so far, no crash. The only non-out-of-the-box audio feature I use is auto leveling. Was there a bug fixed between 21.0.6 and 21.0.9 that would have fixed crashes for run-of-the-mill audio playback? The change log mentions a fix for crashes with multiple zones but I don't use zones. I can turn off logging and not look back -- probably should. However, if some wise bug tracker can confirm this it would set my mind at ease.