The package repository for the new version 0.4, which is called Fedaykin, is up. All plugin developers should adapt their plugins to the new xmlstarlet package. You simply have to replace the following XML entities:
" to \"
< to <
> to >
& to &
OpenMediaVault 0.3.x has a feature freeze and will only get bugfixes from now on. New features will be implemented in 0.4.x from today.