Yojimbo 2 has suddenly arrived!, but I’ve immediately hit a snag. When you first open it, Yojimbo 1 users are met with this message:

So if you try out version 2, you screw up your installation of 1. It’s good manners that it warns you, but a better solution would be to offer a backup and restore facility. The message put me off upgrading, but I found the database (home>Library>Application Support>Yojimbo) and have backed it up. Hopefully, if I decide not to upgrade, I can just restore this folder to revert to version 1.
Great to see a new improved icon though!
Update: Making a backup of the database works, although I found that wasn’t enough. After restoring the Yojimbo folder in Application Support, and clicking on Yojimbo 1 I got a warning that it was already running another instance. I checked in Activity Monitor, and there wasn’t. The fix was to run Yojimbo 2 again, and choose ‘quit’ rather than ‘upgrade’ - then I was able to run version 1 again.