Schedules

FogBugz has several features allowing you to keep a handle on your development schedule:

Priorities from 1-7 let you decide what gets done first.
Releases lets you decide which case will be fixed for which upcoming release of your software. You can also gather Release Notes. Each case also has a Version field to track where a bug was first seen.
Estimates let you provide detailed estimates for how long a case will take to resolve in hours or days, and how much time has already been spent on it.
Due dates let you add a specific due date and time to a specific case, and insure that customer requests are responded to promptly.