WinUAE v4.9.2 Beta 4 is released. WinUAE is the commodore amiga emulator for Windows. WinUAE is a mostly complete software emulation of the hardware of the Commodore Amiga 500/1000/2000. A Commodore Amiga, for those who don’t know, is a 16/32 bit computer system based on the Motorola 680×0 CPU and a few specially designed custom chips that provide very good graphics and sound capabilities. Its first incarnation, the A1000, appeared in 1985, followed by the highly successful A500 and A2000 models. WinUAE is a port of the originally written for Unixish systems UAE; but over time, it seems the Windows port, WinUAE has become the best version available on any platform. WinUAE is free software: you are welcome to distribute copies of it and/or modify it, under certain conditions. There is no warranty of any kind for UAE. For more details concerning these issues, please read the GNU General Public License, which describes the terms under which WinUAE is distributed.

WinUAE v4.9.2 Beta 4 changelog:
- Remaining IPL fixes (LINK, UNLK, MOVE to SR/CCR, AND/EOR/OR SR/CCR, CPU wait state IPL fix).
- Emulated Paula side-effect that affects IPL timing. IPLx line state changes from low to high (IPL is active low) are about 0.5 CCK later than high to low transitions. This delays CPU IPL change detection by 2 CPU clocks if any IPL line had low to high transition. CPU accepts IPL change only if has been stable for 2 CPU clocks. (for example 3 to 5 has delay, 4 to 5 does not)
- Enable only WASAPI audio by default.
- Debugger break point command accepts number of hits before breaking to debugger (f Nxx

where xx is number of hits required)
- uaegfx overlay limit checks compared Amiga side VRAM end against physical host side bitmap end which accidentally passed if 64-bit Windows. Overlay window was usually empty if 32-bit Windows. (It might have worked in some configurations when using Z2 uaegfx)
- GUI Help button is now always available and opens if exists: (in priority order) winuae.chm, winuae.pdf. If neither is found, help web page is opened (without asking first like previously)
- It is still possible to run windowed WinUAE if desktop is 16-bit but it can cause graphics problems. Not sure if this needs to be supported anymore.

Download: WinUAE v4.9.2 Beta 4 x86
Download: WinUAE v4.9.2 Beta 4 x64
Source: Here