The most notable changes are:
- Latest tz database (2010m). Also removed a few less then useless time zones from the official distribution.
- Bug fixes, and a new testing module that actually highlighted those bugs in the first place.
- Support for Delphi 2009 and 2010. If compiled for these versions, TZDB provides some features of Delphi XE’s TTimeZone class (for API compatibility).