Something that's boggled my mind for over a year is that when I post a Note or Reply to a ticket the "Last Updated" date does not change. To me, when I update a ticket, the value of "Last Updated" should also change.
In my research I found the following in
include/class.ticket.php
in the function save
the "updated" class variable is changed
but the "lastupdated" class variable is NOT changed
by adding this line, immediately below where $this->updated is changed
$this->lastupdate = SqlFunction::NOW();
Now the software properly changes the value of "Last Updated" and my list of tickets is properly sorting and listing the true last time I updated a ticket.
It would be great if this logic could be added to the next release of osTicket.