I did my interview at the beginning of this month and they said decisions would be ideally sent out in 4-6 weeks. I have already updated them pre-interview on my significant updates (Grades, Pub, and ECs) but I now have some new updates (another Pub and oral presentation at a conference) since my interview. I wanted to know when would be a good idea post-interview to send a 2nd update letter if at all or if you should only send a letter of interest/intent? I also already sent a thank-you letter to my interviewers after my interview to the admissions office that they confirmed they would pass on to the faculty. Thank you guys for any help!