Also... There's should be a second official update regarding transfers, in i don't know, June (as the game is often out pretty late why not?)
There's tons of leagues and clubs completely outdated. MLS is the best example.
And many American (south and north) clubs, Brasileirao, but also in Asia. And there's a lot of amateur update on FMScout website, but it very, very far to be as complete as FM.
I know they gives random values at each save for some youth etc. but at least there's a lot of Current ability (or Overall let's say) and Potential who are settled, and not randomly given by some editors.
Thanks for their work, but i even prefers to keep the original outdated DB if i start a game than mixed data with some leagues with transfers, some others without, it looks amateurish. But there's some mods who are fun or some added leagues too, needed and important (like J-league) even if not a single player got his set of stat done / only Current and Potential also for very well known players.
So you will get Shinji Nakamura in one save with an attacking midfielder who tries to shoot more and 5 in Sets piece stats, another with a more "pressing type" ect.
That wouldn't be the case if it was an FM update. At least well know or average players would have not all but some stats rated regarding at least weakness and strenghtness. (Note like i said below about "random sets given" if you're a tiny bit familiar with the pre game editor : some stats are rated, some aren't, replaced by a "0" meaning "we don't know/not