=== 2016.12.23
Mesen 0.6.0 (2016.12.10)

Pros:
Emulation is accurate in most areas.
Has NSFe support.

Cons:
Namco sound support plays at a lower octave rate.
square and dmc audio test carts fail to produce good results,
 despite claim that they pass on the emulator's web site.
PPU support has weird problems:
 Some sprite writes fail in "8bitpeoples-dl_invitro.nes".
 Same with playfield in "apocalypse.nes".
 (Note: these carts have not been tested on real hardware.)