Unvanquished Alpha 48 is mostly about delivering bug-fixes. Unvanquished Alpha 48 has reworked mouse handling to address mouse focus issues, Breakpad fixes, an assert framework was added, and other fixes.
The Unvanquished Alpha 48 announcement concludes with, "Stay tuned in next month where we are working on several features as we begin to gear up towards beta. We are reworking the animation system to make it easier for artists to add human models to our game. Gamelogic Lua scripting remains a work in progress. We have shifted the design of the Lua scripting framework away from mirroring the C structs in the code to mapping entity names key/value pairs mappers. Lastly, we have begun work on a tiled renderer, which will allow us to support many more dynamic lights than our current forward renderer does."
Back in 2012, developers of this game and its Daemon Engine hoped to be in beta in 2015 but that didn't happen but at least now it looks like this game, which is originally derived from ioquake3 era technology, will soon hit the beta milestone.