I haven’t seen the email yet, but we did remove 今日は on Friday. Sorry I forgot to add it to the Content Updates after 
!
This one was actually supposed to be removed a few months ago and we finally got to it post-sale season. It’s been something people have been asking us about for a while now as it’s not the most common way to write the word and we even had that written in the explanation (context sentence). It was more confusing than being useful, especially for users at a lower level.