Hola,
if you have found yourself clicking the "History" link in Bugzilla tickets way too often (to check who has set the Priority, or who has changed the assignee and when), Bugzilla now has an opt-in to display such metadata changes inline, between the comments of the bug report.
You can enable this by going to https://bugzilla.wikimedia.org/userprefs.cgi?tab=settings and setting "When viewing a bug, show all bug activity" to "On".
Cheers, andre