OGRE 1.6.0 aka Shoggoth is the newest version of the acclaimed 3D engine. I don't understand anything that's on the changelog, but it obviously goes beyond bugfixing and tweaking. :)
There are no recent pre-compiled packages available, so the source way is the way to go, for now.
The Infinity Engine's clone GemRB had some DONEs added to it's TODO, when version 0.3.1 was released a month ago.
OpenMW, an OGRE-based engine for TES3's game data, is now 0.5-versioned. Considering that the project started in this year's june, this number is quite impressive! Does this mean that we will have a final version of OpenMW by the start of 2009's summer? :D
However, animations, interaction and user interface are not yet implemented. Also: check out these videos that show the progress of the engine so far.
cocos2d-iphone is yet another LGPL-ed game framework and you can probably guess the platform it's designed for :). However, freedom freaks will argue that free software can not exist on an iPhone.
Ignoring all that, I find the Video presentation of the engine very spiffy. It demonstrates all the features in a more entertaining way than the raw text listing over here.
The Kambi VRML game engine now contains a demo of Precomputed Radiance Transfer. It has something to do with real-time lighting I think.
