Here’sfew plugins for Trac:
Timing and Estimation Plugin
Project manager, CEO and customer are usually not interested in count of tickets. This plugin adds new fields to tickets where you can add hour estimations and actual worked hours. It also adds checkbox for billable/not billable ticket.
Batch modification of tickets
I found this useful when you have for example milestone Preview1 and all tickets are there. Then you release the Preview1 version. Next you create Preview2 milestone and move all open tickets from Preview1 to Preview2. No need to modify every ticket, only make a custom query and select all open tickets.
