A new version of the Atari 2600 emulator, Stella is now available. Here is what is new in this release:
* Added new video sub-system where fullscreen and windowed modes are treated
differently. Windowed modes now use '-zoom_tia' and '-zoom_ui' arguments,
while fullscreen modes can be specified by resolution using the new
'-fullres' argument.

* Widescreen video modes are now supported; Stella will simply center the
image with surrounding black borders.

* Many UI-related changes, including resizable ROM launcher and debugger
windows, and a new UI palette (the previous 'classic' palette is still
available). This is still a work in progress.

* The locations of all major config files (statedir, palette file,
cheat file, properties file, etc) are now configurable from the
commandline and within the UI.

* Updates to TIA palette support. Added SECAM support, and removed the
built-in 'original' palette. Standard, z26, and user are still
available.

* Various bugfixes to some debugger commands. The 'run' command no
longer causes a crash, and several others have better error-checking.

* Added more complete cartridge auto-detection for Commavid (CV), 3E,
3F and Activision (FE) formats.

* Removed XStart and Width ROM properties, since the forthcoming TIA
rework won't be using them.

* Reworked internal storage of ROM properties to be faster and take up
less space.

* Added several different ways of stretching the OpenGL image to the
'-gl_fsmax' argument, for more flexibility.

* Removed OpenGL aspect ratio setting favour of the previously mentioned
video changes. We'll see how this goes.

* Removed dirty-rect support from software rendering, since it was actually
sub-optimal in Windows and OSX and defaulted to off in previous versions.

* Added support for gzipped ROMs.

* Re-added pause support.

* Re-added support for Windows 98.

* Removed support for 'STELLA_BASEDIR' environment variable, since each
config file can be now configured separately.

* Removed '-fastscbios' argument, since it must always be turned on.

* Removed PSP support, since it hasn't been updated in over a year, and
someone else is maintaining another port elsewhere.

* For the Unix/Linux port; fixed 'make install' issues, and changed icon to
PNG format.
You can get it from here.