Altirra 2.1 Test 7 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 2.1 Test 7 Changelog:

features added - Display: Added scanline display mode. - Display: Added integer-multiple version of preserve aspect ratio sizing mode. bugs fixed - Disk: Format command now sends back ACK+ERROR+buffer instead of NAK on a read-only disk. - Input: Fixed bug in keyboard repeat detection code.

Download: Altirra 2.1 Test 7
Source: Here