Gopher2600 v0.26 is released. Gopher2600 is an emulator for the Atari 2600. Whilst the performance is not as efficient as some other emulators it is none-the-less suitable for playing games, on a reasonably modern computer, at the required 60fps. (The development machine for Gopher2600 has been an i3-3225, dating from around 2012.)

Gopher2600 v0.26 changelog:
MovieCart
Added support for new MovieCart format
TV
SECAM support
TV rotation. Manual and automatic
Only Moviecart makes use of automatic rotation currently
ELF
StrongARM ROMs use the correct color table for the current television
ARM debugging
Corrected DWARF CALLERS
ARM disassembly shows function in tooltip
Other
SDL version logged on startup
VideoChess bot can now work with levels 2-8 as well as level 1

Download: Gopher2600 v0.26
Source:Here