This is a full rundown of the changes in dot big bang version 0.9. You can also read an intro here that highlights some of the main items.
Game
– Hide page header by default, toggle header by clicking on orange “Doodle” face icon
– Replace game buttons with more minimal button/icon set
– Abbreviate large numbers for Likes/Comments/Views counts
– Game Error dialog now includes buttons to “home” and “discord” as well as a “rejoin” button when kicked from a multiplayer session