Pingus 0.7.6 is out, not much changes to the core game, but 10 brand new Xmas themed levels.
Pingus 0.7.5 is out, changes include among some fixes, 10 brand new Halloween levels. Linux and Windows versions are provided. No Mac version at this point, it might fallow later on.
There is now a preliminary Win32 build available for Pingus 0.7.4. Note that this is a rather rough release, it doesn't contain an installer yet and has not been tested at all on native Windows, just in Wine. Use it at your own risk.
At long last, Pingus 0.7.4 is out. This release does not yet continue the main story, but it contains all the little improvements and bug fixes that have been allocated over the last few years. As a bonus however this release contains two new levelsets with 27 new levels. This release is source only at the moment and will compile in Linux. Windows and MacOSX versions might follow at a later point. Some more things that have changed in this release are: