I updated A LOT.
First i sent in my update letter in Nov about my new research position.
Then i got an interview in Feb.
Then i sent thank you emails to follow up (obvi)
mid march I sent in 3 more Letters of Rec because i think they limit you in your primary to what, 6? So i submitted (thru AMCAS) the other 3 I had
Then I sent another update letter on a poster presentation I did that month + new training and projects I'm now handling with my research team
Then I had my post bacc advisor send in ANOTHER LOR to emphasize how much of a good fit i was for Stritch
In april my current PI (so brand new LOR they haven't received before) sent in a LOR for me emailed directly to their admissions account
I think also in end of march/beginning of april i sent in a letter of intent
then after i got waitlisted in May i just kind of sat on it because i ran out of stuff to send hahahaha