Updating universities after applying

<p>I applied early action to an Ivy a month ago, but I've done some things in my extracurriculars afterwards that I think could have an impact, which are:
- placed in finals at a major debate tournament
- got a coaching position for another country's national high school debate team
- been chosen for my school's grad council (our equivalent of student govt)</p>

<p>I'm not sure if people usually update adcoms about their achievements, and I really don't want to annoy them. Any advice?</p>