Two of the most common requests on our Discord were takebacks and a way to play one game over several sittings. Both are now part of playing against Maia.
The setup dialog for a game against Maia has a Practice mode option. A practice game is unrated, and it adds two buttons beside the board:
Both ask you to confirm, in place, before they act. Wins and draws in practice games still count in your statistics; only your rating is left alone.
Unlimited games and practice games against Maia are now kept in your browser after every move. If you refresh the page or close the tab, the game picks up where you left it, with the clocks paused while you were away. The setup dialog also offers to continue an unfinished game, for up to two weeks. These games are unrated.
Rated games with a clock are still played in one sitting.
The setup dialog starts from the choices you made last time: opponent, time control, Maia's thinking time and practice mode, and for Hand and Brain your partner and your role. "Play again" in Hand and Brain reopens the dialog with the last game's settings.
With human-like thinking time, Maia decides how long to think from the clocks of the game. It is now told the game's real clocks, increment included. Before, it played every game as if there were no increment, and it moved instantly in unlimited games.
For everything else that changed, see What's New on Maia Chess.