Unvanquished Alpha 14 was released on Sunday evening and features color grading support, a lot of bug-fixes, faster map loading, occlusion query-based "real" fades on light flares, possible performance improvements, start-up / map load-time enhancements on the GL3 renderer, and other renderer improvements. Some other goodies to Unvanquished Alpha 14 include configuration file changes, entity improvements, graphics fixes, and lots of translation updates.
More details on Unvanquished Alpha 14 can be found out at Unvanquished.net. For those unfamiliar with this open-source game, it boasts decent art/visual assets and is running off a heavily souped up version of the ioquake3 engine. For those into open-source gaming, Unvanquished is a title definitely worth checking out. (Now if only they would improve their Linux installer to make it easier for automated and standardized benchmarking, you would see it covered within reviews of graphics cards, display drivers, and operating systems on Phoronix.)