I have a bunch of sites running both on Drupal 6 and Drupal 7 on my server. Every site has its own folder (ie. I don't use multisites feature). I created a small script to run
drush pm-update on every site.
All of this is working okay, but I noticed something strange. Often when I run, either manually or via the script above mentioned, the
drush pm-update finds a update for a version of a module or core in one site, but not for others.
I tried to clear drush cache but it showed no result.
Have anyone seen this behavior and has a hint of what it is? I'm curious about it :-)
Update: Now I think it's related to this issue https://drupal.org/node/952394