Altirra 2.5 Test 3 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. Altirra is quite matured now, and IMO, the best Atari Emu currently! It also supports some copy protected games properly in emulation.

Altirra 2.5 Test 3 Changelog:
features added
Input: Added XInput support.

bugs fixed
HDevice: Files can now be created in append mode
Serial: Fixed outbound escaping of $FF bytes over Telnet protocol.
Serial: Cold reset now forces modem back to command state.

author' comment
Xbox 360 controllers no longer suffer from having their triggers tied together and the guide button can also be bound. XInput 1.3 is needed for the guide button. The input map UI now also identifies the axes and buttons(...)I fixed the Telnet escape problem, too -- was actually supported, but a buffer overflow check was inverted. No terminal negotiation yet, but just didn't feel like doing the UI for that tonight

Download: Altirra 2.5 Test 3
Source: Here