There are really BIG improvements - which get advertised.
The direct integration of Python in JMP v18 sound very promising.
Other new features are presented in
It could also be a "tiny" improvement which makes your work life orders of magnitude more efficient - like the new option in MFI:
which allows the user to select files in a much more flexible way.
After adjusting our import scripts, I see orders of magnitude speed improvement with the EA version, especially when I want to open a file from a network drive with thousands of files. Jmp 18 doesn't scan the input path anymore, so it just takes a few seconds till the files get loaded.
Another tiny, but very powerful improvement: Summary Statistics for Smoother plots