These are the major user-visible changes in 2.0:
- Pattern search is now available, similar to Kombilo. Use the settings dialog to create a suitable database. Unfortunately existing Kombilo databases can't be used for this because of 32/64 bit compatibility issues.
- Database load times are reduced, and threading was added so that the user interface remains responsive.
- Multiple online games can now be observed in a single window with clickable previews to switch between them. The old mode of one game per window is still available.
- There is a new "Tip of the day" dialog on startup, which displays features that are maybe not easily discoverable. It can be disabled.
- There are several new high resolution wood textures for the board to choose from.
- When playing engines that are capable of analysis, the evaluation is now collected during the game and can be displayed live.
- Engine configuration now allows engines to be unrestricted in board size and komi, catching up with improvements in KataGo over Leela Zero.
- Some GTP bugs were fixed, which may improve compatibility with certain engines.
- Window titles can now be overriden in the settings, which should help with streaming setups.
- Performance improvements for the screen updates should now make it feasible to turn off quiet mode when online, which allows the server to send live player and game updates.
- There is a new option to highlight the user's own chat messages in a different color.