The libasi package also contains libraries for ZWO EAF focuser, EFW filter wheel and USB-ST4 interface in addition to the camera library and I've just increased the package version number every time one or more of them updates instead of using some magic number derived from four different version numbers :). So it's purely coincidental that the numbers happen to be close, earlier ZWO used date based versioning but recently moved to similar increasing versioning.

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