MS.WaitingList [CS@Columbia] 收到哥大一个信儿

我3月中旬已经进waiting list了 这是前天发过来的

Dear Applicant,

Thank you for your interest in the Master of Science Program in Computer
Science at Columbia University.

The M.S. Admissions Committee would like to know if you are still interested in being considered for the MS Program at Columbia University. If you are still interested, kindly respond to this email by April 21st 5:00pm to confirm your interest.

Please note that M.S. admission offers do not include
funding or financial assistance.

Regards,
Remi Moss

这封信意味着什么呢？想把我从waiting list刷掉？