Altirra 2.0 Test 20 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 2.0 Test 20 Changelog:

Yes, if you fiddle with things just right you can still end up with a 5200 with no cart plugged in. Not too concerned about that at the moment. Fixed a number of bugs in the disk explorer, added ability to browse actively mounted disks, and also added .ARC support (because no one uses ARC anymore on a real OS)

Download: Altirra 2.0 Test 20
Source: Here