Since the blog opened after the first releases, here is a little summary of what appened before.
For details, see the changelog.
Version 0.1.x
Most of the architecture of the software was defined. It was decided to use a temporal file to store current state.
The program uses 0install.
Version 0.2.0
In this version, I add a lot of command line option, completed in 0.2.1. Temporal file is now hidden and it uses biniou file format, to be smaller.
Messages were improved, for example by showing the right command when it can be useful.
Some utilities were created to release the program easier.