The Qi4j team has made a 0.2 release to mark a known position in time, to head into a large internal change.
Release 0.2 is a small evolutionary improvement of 0.1.0, which was lacking the Query API. numerous bug fixes and improvements is in this 0.2 release.
But the main purpose of the release is to mark a deviation into a revolutionary internal change, which will take a while. It is not expected that 0.3 will contain any drastic API changes, but the SPI and some bootstrap code are going to become incompatible with 0.2.
