Devs, I was checking out the change-log this morning for Game Dev Tycoon and it said the current version was 1.3.9. Didn’t 1.3.12 come out 2 days ago.
So the last version is 1.3.9 again.
P.S.: I’m not a dev, just was walking nearby and looked into the thread.
sorry about that. As @Oscillograph said, we discovered a fairly serious issue where saving just doesn’t work. The problem seems to be with the underlying technology (node-webkit) rather than our game code so we reverted back to 1.3.9 until we have a fix for this. Nothing worse than broken saves when you play a game 
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