Altirra 2.2 Test 12 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 2.2 Test 12 Changelog:

features added UI: Shift-hover over a BASIC or DOS error message now displays error help. Debugger: e (enter) command now accepts extended addresses. Debugger: .map command now displays layer names. IDE: Selecting a physical disk now updates the CHS mapping. bugs fixed Cartridge: Re-added missing 512K detection size for SIC! cartridges. UI: Tabs now paste properly.

Download: Altirra 2.2 Test 12
Source: Here