Although the developers' will continue to strive for further improvements and new features, version 1.6 is a mature product, significantly better than previous versions graphically and in many other areas.
Improvements have been made to the Artificial Intelligence and the stats of many units have been rebalanced for better gameplay. There is a new mainline campaign and there have been worthwhile changes to the map editor. There are also new,original music tracks, and special clips for significant events in the game.
All in all, an even better product. Probably the best free open-source game yet produced, there are many user-contributed scenarios available to load into the basic game, both single-player and multi-player.