Altirra 2.4 Test 5 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 2.4 Test 5 Changelog:
[features added]
* Debugger: Added %e, %f, and %g formats to .printf command.
* MMU: High (65C816) memory can now be adjusted from 0KB-4032KB.
[bugs fixed]
* Debugger: Display float (df) command displays all ten significant digits.
* LLE: Fixes and optimizations to math pack.
* HLE: Fixes to math pack acceleration.
* MMU: Fixed aliasing of high memory banks.
* UI: Fixed ANTIC DMA visualization mode with extended PAL height.

Download: Altirra 2.4 Test 5
Source: Here