Altirra 2.8 Test 1 is released. Altirra is an Atari 8 bit Emulator on the Windows/DOS platform. Altirra emulates several models of the 8-bit Atari computers. This includes the the 800, 800XL, and 130XE versions. It has a lot of options, and compatibility is decent especially given the emulator's early stages. It also supports some copy protected games properly in emulation.

Altirra 2.8 Test 1 Changelog:
features added
-Debugger: All special variables in debugger expressions can now be specified with a @ prefix, i.e. @a. The non-prefixed form is now deprecated due to symbol/number conflicts.
-Debugger: Focus is now automatically switched between the console and the display when starting and stopping execution.
-Debugger: Heat map can now be used to detect accesses to uninitialized memory (hmt command).
-Debugger: Expression parser can now optimize +/-0, *0, and *1 patterns.
-Display: Added /w command line switch to force windowed mode.
-MMU: Added support for 256K Rambo configuration, which aliases 64K with main memory.
-UI: Added /si and /nosi as synonyms for /singleinstance and /nosingleinstance.
-UI: Added profile system for switching full or partial configurations.
-UI: File associations can now be set user-local as well as system-local.
-UI: Added option to reset all settings.

bugs fixed
-AltirraOS: Fixed XEGS game cartridge activation.
-Debugger: Fixed assembly and disassembly of 65C816 COP instruction from COP #n to COP n.
-POKEY: Improved emulation of fast pot scan mode.

Download: Altirra 2.8 Test 1
Source: Here