The 115th Congress Republican Tax Bill for 2018 [pdf]

AMT Changes: The exemption and phase-out exemption amounts were increased, and AMT is proposed to adjust with inflation. Information on pp 95-97 of the 2018 tax bill.

Just in case someone wants to compare the Alternative Minimum Tax (AMT) changes themselves: Current federal AMT law: https://www.law.cornell.edu/uscode/text/26/55 v.s. New AMT amendments: pp 95-97 of the 2018 tax bill