Altirra 2.6 Test 25 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 25 Changelog:
features added
- Devices: Added support for SIO-based real-time clock devices.
- Devices: Added SIO type 3/4 polling test devices.

bugs fixed
- AltirraOS: Fixed CIO type 4 polling support.

Download: Altirra 2.6 Test 25
Source: Here