nice but one issue (for me)
I have one machine that is rocking along just fine with 14.04 still- and I am going to need to update it to 18.04 before end of support next year, but this machine runs on an A10 and amd graphics card using the proprietary driver because I'm quite happy with the relatively large (for the gpu thats installed) performance boost running the driver in dual graphics mode.
The newer driver stack STILL does not support any kind of crossfire type mode including dual graphics mode. This hence means that the update will equate to lower graphics performance that one of my sons benefits from as he uses this machine for penguin flavoured gaming.
Due to 'advances' there is no way of getting round this and there is STILL no movement that I can see towards this being resolved :/