The mkgmap program converts map data from OpenStreetMap into the Garmin img map format that can be loaded onto Garmin GPS devices. It also combines maps and produces the auxiliary files required to load into map viewing programs.
o5m files are now supported. House numbers can now be written and displayed on the map and used in address searches, although they are only supported when the input is in the Polish format. There are many performance and memory usage improvements as well as plenty of bugfixes.