A new version of UAE, 0.8.27, is available at the usual place:
Quite a lot of changes this time, such as higher reliability timekeeping, and a much improved GUI.
I'm no longer really trying to keep up in features with other trees such as E-UAE or WinUAE, but to provide a reliable "core" emulator with a good user interface. Still, this version also includes a number of features taken from WinUAE, e.g. sound filters.