- Introduction of the new render-theme API 
- Customizable map styles via XML configuration files
- The render-theme can also be changed at run-time
- Improved binary map file format 
- Reduced file size due to more sophisticated encoding
- Better handling of complex polygons
- Removed limitations regarding the stored map data
- Added more meta data to the file header
Please see the official changelog  for a more detailed description.
Almost nine months have passed since the last mapsforge release. This
time was necessary to organize a new project layout and to restructure
the different components. We have refined the scope of the project to
focus on those parts which we are actively developing.
A notable change was the introduction of Apache Maven as build system.
This makes it much more convenient for developers to participate in the
project. It also allows us to publish new versions more frequently due
to the simplified release process. We created a wiki article 
containing more information on the new build process and how to get
started with developing.
You can find the new version of the mapsforge-map library, as well as
the new map-writer plugin for Osmosis in our download area . A new
version of the AdvancedMapViewer application for Android together with a
few sample map files is also available. In addition to that we have
published an update of our online Javadoc API .
Our download server  provides regularly updated map files for many
more regions. Please note that the now deprecated map files for version
0.2.4 will be removed after a grace period of 3 weeks.
We would like to thank all the people who contributed with patches, bug
reporting and testing. Also for the future, your help via our issue
tracker  or our mailing list  is very much appreciated!
Have fun with the new software!
Jürgen and Thilo