It's upto date for 1.7.2 or at lest with its stable release. But I am working on a program to map the classes myself so I can debug and find things in snapshots.
Also Ids are still in the save files of the game because it uses them internally for everything except a few spots but in 1.8 that might change.
Also if they were removed the save files of snapshots and 1.7 would not work on 1.6
Also Ids are still in the save files of the game because it uses them internally for everything except a few spots but in 1.8 that might change.
Also if they were removed the save files of snapshots and 1.7 would not work on 1.6