z26 v4.07 is released. z26 is an Atari 2600 emulator. z26 is Copyright ©1997-2011 by John Saeger and contributors. z26 is released subject to the terms and conditions of the GNU General Public License Version 2 (GPL). z26 comes with no warranty.

z26 v4.07 Changelog:
Wide dynamic range, tunable palettes for NTSC and PAL video. We are now emulating the color tuning controls that are found inside the Atari 2600. So just like owners of real hardware can experiment with different color tunings, users of z26 can also experiment with different color tunings. By default we set the NTSC phase shift to 26.2 degrees and the PAL phase shift to 21.5 degrees which are good matches to the original z26 palettes.
Brightness and “warmth” controls. The warmth control allows better matching to vintage CRT TV sets from the 1980s which had a little more red and maybe a little less blue than “modern” CRT TV sets from the 1990s or early 2000s.
The original z26 palettes have been retained as custom options, and since our tunable color model was inspired by mame 0.212, we also include the mame palettes as custom options.
The palette selection and these new options may be found in the video menu.

Download: z26 v4.07
Source: Here