This is the 'full RedNAND support' release. This is new:
- Added 'Complete RedNAND Setup' feature
- Added options to convert your EmuNAND <-> RedNAND and vice versa
- Improved SD card and SD card fault handling
- Various smaller and bigger improvements
Read more about the RedNAND / GW EmuNAND difference here.
RedNANDs are, by now, only supported by CakesFW and AuReiNAND, and technically a superior alternative to GW type EmuNANDs. If you do a complete setup, you can save a lot of space at least for N3DS consoles if you choose RedNAND over GW type EmuNAND.