In previous Xitrum versions, the class and routes autoreload feature was implemented by creating throwaway class loaders. That brought some unsolvable problems like conflict between class instances created by different class loaders.
scala-xgettext is updated from 1.0 to 1.1. Previously, i18n string keys was random, thus it's hard to compare between versions of your .pot/.po files. Now, content of the files are sorted by i18n string keys.