tl;dr VS2015 refactorings galore for free Download
We are currently busy making NRefactory 6 (NR6) available in multiple different packages - from our "classic" offering of IDE services, now to extensions geared towards Visual Studio 2015. The first package is the Refactorings, which as the name suggests, has the refactorings from NR6 inside (note that those exist in NRefactory 5 too, but those aren't Roslyn-based).
The list of supported refactorings is already quite impressive, but there is still lots missing / not fully ported / in need of testing. If you feel that contributing to a fully cross-platform Roslyn-based suite of IDE services is something you not only subscribe too but would like to help with, check out the list of missing refactorings.