The 1.4.2 interface
The whole interface looks as it did in 1.4.2: the login screen, character selection and creation, the appearance editor, every game window, the bottom menu and the minimap.
Game windows
Switch tabs — under each window is what changed in it.
The frame, the ornaments and the field layout come from the 1.4.2 client. Next to the class name we put the class icon: the same one used in party rows and the friends list.
1.4.2 accuracy
The skills of all eight classes were checked against the original 1.4.2 server: 1179 skills, not a single difference. Damage, mana cost, cooldown and training cost match the 2010 version, both on the server and in the client's tooltips.
The client keeps only the four races of 1.4.2. Races from later versions were removed from it.