- chucre, add special JSON output format, see #41
- michaz, very important hidden markov improvement via hmm-lib, see #49
- rory, support milisecond gpx timestamps, see #4
- stefanholder, via creating and integrating the hmm-lib (!), see #49, #66 and #69
- kodonnell, adding support for CH and other algorithms as per #60
For GraphHopper contributors see here.