WinUAE v2.3.3 Beta 1 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 v2.3.3 Beta 1 changelog:
- new vsync option
* does not need extra buffers (very little input lag), make sure "no buffering" is selected
* works also in windowed/fullwindow mode
* attemps to autodetect exact refresh rate, ignores what Windows/driver reports
* less busy waiting, no more continuous 100% CPU usage
* much more stable than "normal" vsync
- old vsync is currently always forced to new mode
Usual vsync restrictions still apply: do not use fastest possible modes, 50Hz capable display and driver required if you want proper PAL speed.
Old vsync support may disappear later.

- keep old joystick Gameports setting if no joysticks detected when loading config file
- another method to enable unconfigured joystick: quick firebutton press = joystick port, long press = mouse port
- unconfigured joystick move left/right can also be used to enable joystick
- DirectDraw and 2x filter = non-centered image, broke few releases ago
- IDE multiple sector writes fixed (2.3.2 final fixed spurious interrupts but fix wasn't complete, last interrupt didn't always arrive causing driver to hang)
- set IDE CHS/LBA address after read/write command has finished as explained in ATA-1 spec (last accessed sector, not next sector). This is undefined in later ATA spec versions, but AOS IDE driver >256 sector transfers corrupt data if this is not handled exactly as ATA-1 spec says. (Infamous "max transfer problem")
- detect and log split >256 block IDE transfers
- only load OFS from RDB if partition and RDB filesystem dostype matches exactly
- create _winuae.fx only if full D3D plugin path exists
- A590/A2091 boot ROM was mapped non-executable, crashed on 68020+ CPUs

Download: WinUAE v2.3.3 Beta 1
Source: Here