Dartmouth letter: extended deadline?

<p>I got a letter saying that my deadline has been extended to Jan 15th.
Other threads say that URM's get this letter, but I'm Chinese.
Is it possible this is because of my perfect score on the SAT?
And does this letter mean I have a higher chance of acceptance?</p>

<p>I got the same letter and my parents are from Bangladesh-not exactly a target URM. there’s already a thread about this, im still not sure the reason for it.</p>

<p>An alum with a good source in admissions says: “It turns out that the Admissions Office sends out these letter every year, and that, in fact, you can apply to Dartmouth at least until the start of February, despite what it written on the College’s website.”</p>