We have just released the 2.0.0-M3 version of macro paradise that is already available at Sonatype and will arrive at Macen Central within a couple of days. This new version doesn't provide any new functionality, and only introduces several refactorings to the inner workings of the plugin.
First of all, the 2.10.x family of paradise builds does away with magic injection of classes that support quasiquotes and instead factors out these classes into a traditional library dependency. This should fix SBT recompilation problems and close #11.
Secondly, paradise for 2.11.0-M8 and later now makes use of the new hooks in namer and typer to avoid the necessity of hacking the compiler to implement macro annotations. This should make the implementation more stable and future-proof.
Please feel free to contact us with questions, bug reports and new feature proposals either at GitHub or via email. We are looking forward to making sure that paradise works the way you'd like it for your use cases!