We plan to release 0.9 in the coming weeks and would like to ask you to let us know which issues are critical and you think should be resolved before. See here for the current list of open issues and PRs
The release candidate for 0.9.0 is out. Please have a look and report any issues!
GraphHopper routing engine:
Java client for the GraphHopper Directions API
And then there is directions-api-client-optimized which contains a more memory efficient client for the Matrix and Routing API.