Because I'm working more than usual, I had no time lately for checkers programming. Two projects are ongoing, and I don't need to do anything about them: the book generators for regular checkers and for suicide checkers are both churning away on their respective computers. The generator for regular checkers is filling in the gaps in the newly merged huge opening book, a process which takes a lot of time. I guess that I'll be able to release the resulting book in about two months. I restarted the suicide checkers generator a few weeks ago, since Suicidal Cake now also has access to the 7-piece endgame database. After analyzing 46'000 positions, it still thinks that the game is a draw.
In 10 days, my holiday season starts, and hopefully I will be able to get back to cleaning up CheckerBoard's source code!