This is a brand new form this year to deal with the recalculation issues due to the last minute tax law changes.
The IRS is catching the fact that you are now eligible for the EIC due to the unemployment exclusion. By following the notice instructions and sending in the 15111 ASAP then your return can continue being processed now and save you the need to amend the return and the 6 months or more of waiting for the amended return to be processed.
