With a "huge graphics subsystem rewrite" for multi-virtual monitors, and "lagless V-Sync". If you were once an Amiga user and moved over to the PC in the 90s you are probably well aware of UAE, or more likely the Windows specific WinUAE. UAE was first released back in 1995 and the last stable release of WinUAE was shared with the community on 4th March, version 3.6.1. With such a long history, a major numerical version increment is big news and earlier this week WinUAE developer Toni Willen released WinUAE 4.0.0 beta. There are indeed a lot of important changes delivered to this capable emulator.