Altirra 2.6 Test 2 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 2.6 Test 2 Changelog:
features added
ATBasic: Improved execution speed.
ATOS: Optimized FPI routine.
ATOS: Improved rounding of FDIV results.
BlackBox: Initial emulation support.
Debugger: Changed .writemem to use length syntax.
Debugger: .basic_dumpline updated with shortcuts for STMCUR/STMTAB and continuous output.
Debugger: Added .basic_rebuiltvnt command.
IDE: CF hot swapping is now supported.
Software: Added Additions disk containing supplementary utilities.
UI: Added new firmware management dialog and support for multiple custom OS and BASIC ROMs.
UI: Added /[no]cheats switch.
UI: Improved high DPI support.

bugs fixed
ATBasic: Fixed precedence of unary minus vs. exponentiation.
ATBasic: Fixed x^y for x<=0. ATBasic: Error messages now indicate STOPPED or line numbers as appropriate. ATBasic: Fixed not being able to Break out of a single-line loop. ATBasic: TRAP line is now reset more appropriately. ATBasic: Fixed range reduction in SIN() and COS(). ATBasic: GRAPHICS no longer reopens E:. ATBasic: Fixed CONT sometimes failing in deferred mode. ATBasic: Fixed parsing errors on the right side of a string relational expression. ATOS: SIO no longer saves STACKP before invoking PBI routines (fixes BlackBox crash). Debugger: -$80000000/-1 no longer causes a crash. Debugger: .printf %u formatter now works correctly for numbers >=10^10.
Debugger: Fixed EXP/EXP10 not being logged to FPACCEL channel.
Display: Fixed crash on display hardware change when using DirectDraw.
HDevice: Fixed NOTE command sometimes giving incorrect positions.
Input: Fixed right mouse button not working on mouse controllers.
POKEY: Undetectable $C0-C7 and $D0-D7 scan codes are now blocked.
UI: Fixed mouse pointer blinking when a video player injects mouse moves to prevent the display from sleeping.

Download: Altirra 2.6 Test 2
Source: Here