Sponsored by US Citizen parent w/o leaving US? - Page 4

Correct. For example, my father is a US Citizen and filed for me in 2004 when I was 18. However, I was already in the United States and entered without inspection as a baby. So although I have an approved I-130 for the past several years and a father who is a Citizen, there is no way for me to apply for Adjustment of Status without having an I-94 (Proof of Entry). If I leave, I risk getting the 10-year ban!

The difference is that before, you'd have to leave and apply for the waiver from foreign soil, taking months and at the risk of being denied after already leaving and subject to the ban.

After March, qualified applicants can file for the waiver in advance before leaving, secure a return trip, and then just go briefly for the consulate interview.