[2019] Where is the patchnote? It supposed to be released today? Why Ea/Dice always break thier promise.

As Jeff said on Twitter:
" Waiting for that final sign off to push the BattlefieldV Update Notes live. "

Source

And there's always timezones, so it's always today somewhere in the world ;)

I suppose he's waiting for sign-offs, as in final approvals.