Android OS update - Directly or step-by-step? I'm about to buy my first smartphone ( I've chosen Nexus 5 ), and I don't really know much about Android.
Nexus 5 comes with Android KitKat 4.4, and from what I read, the newest version is 4.4.3.
Now my question : do I have to first update to 4.4.1, then 4.4.2, and then finally 4.4.3 , or can I just directly update to 4.4.3 ?  

Also, though a bit unrelated, is the mm-qcamera-daemon issue present in all versions, or just in the latest versions ?

Thanks.
The update is cumulative , it will directly be upgraded to 4.4.3
Unfortunately the latest update doesn't address that bug.Source