In the previous update, there was a little bug with the Dax achievement being hard to get for players who already had the older version of the game.
This update provides a simple backup method for obtaining the achievement. If you don't have the achievement, but you do have him unlocked, try this:
Start a new game with Dax. The achievement for unlocking him should trigger automatically.
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OK -- I hope that you have fun playing! Thanks for everything.
Have a wonderful Christmas! 🎄