nesos-v7 14.08.2013
1)sram initialization with zero. Should fix some games
2)MMC1 registers initialization

nesos-v6 12.07.2013
1) Fixed GameGenie bug
2) Important improvements for MMC3 mapper
3) Fixed problems with mapper 32
4) Improved global compatibility

nesos-v5 07.07.2013
1)allow to load short gamegenise cheats from text file. Short code should be written in XXX-XXX format, long in XXXX-XXXX format
2)MMC3 improvements

nesos-v4 04.07.2013
1)mmc3 mapper was improved
2)New mappers implemented: 40, 133, 99, 151
3)OS allow to load gg cheats from text file. Cheats should be written in XXXX-XXXX format. Few codes can be listed in column, or separated by comma in the line
4)Apu initialization before than run the game
5)Naming convention is changed. From now name contains only OS version, without mappers version

nesos-s3m5 11.04.2013
1)fixed problems with sound and sprites flikering in Startropics
2)Supports menu navigation with expansion controller
3)Implemented mapper 28 (INL-ROM Multi-discrete)
4)Mapper 158 support

nesos-s2m4 11.03.2013
1)MMC6 ram implementation
2)Four screen mirroring for MMC3

nesos-s2m3 24.02.2013
1)VRC6 sound improved
2)FDS improvements. IRQ and sound levels

s2m2 20.02.2013
1) few more mappers
2) OS should looks properly with RGB PPU
3) minor bugfix