fzach Nah, I don't really thinks so, it's still a bug, because scope behavior changed drastically after that update.
Let me explain - I image in temperatures close to -5*C right now. I know that temperature drops can produce issues with dark frame calibration, observed some weirdness before these updates, and now I always let my scope cool down completely before even starting calibration process (and watching sensor temperatures in 3rd party software to know when it's stabilized between internal heat and outside temp). Sometimes that takes up to half an hour outside. Then I calibate and start imaging. It produces like half of completely black pixels now, but never ever did that before.
They clearly broke black level, it's not an issue with temp. It might be affected by temp because temperature influences dark calibration which is broken, but no, it's clearly a new behavior and it shouldn't happen.
I would understand increased or decreased noisiness in pictures due to changing temperatures during the night and different dark currents in sensor (and I saw it before), but half of pixels completely clipped into black? That's a clear calibration setting issue.
By the way, the issue is not as pronounced if you have more light pollution in the ared, because average field is brighter and I'm guessing pixels manage to overcome black level and remain not clipped. But under Bortle 4 I get 40 to 60% black pixels in calibrated frames. When the Moon came out in full - I got less. But the frame is still littered with those now.
