My Drupal environment is easy to understand, but unfortunately undocumented. This means that whenever I spend two months not hacking it, I end up forgetting the finer points.

To wit, the upgrade to Drupal 5.3 (I've stopped using CVS for my production sites) caused some trouble with core changes that I forgot to reimplement in the new version. The file backend of PPP broke, taking with it about two days of posts during which the archiver just couldn't download topics. This is already corrected, and the topics in question are now up to date.