Substrate 0.0.3 has been released. This release should contain only a very small number of changes that will impact Substrate users. There was actually a lot of code changed but a lot of those changes are going to be part of the 0.1 release. Please report any problems with this tag as soon as possible. Downloads are available [...]

Most new development on Substrate will take place on the 0.1 branch. With the exception of few bugfixes and maybe a tiny number of features, the 0.0 branch will see very little work in the near future. The 0.0 branch is the most stable, though, as the 0.1 branch will likely see a lot of [...]