This firmware update should improve overall device stability (random crashes) and fixes an issue with the histogram data output ("set out spectrum") to Gamma MCA. You'll be able to use this output mode now whilst also having the display in "spectrum mode". There should no longer be any issues there.

Other than that, nothing has changed and the dead time is still the same as with the last update that seemingly introduced some of these problems.

https://github.com/OpenGammaProject/Open-Gamma-Detector/tree/main/software

Have fun!