None of that legislation has been enacted into law yet. Once (if) it does, the IRS must develop procedures for how to handle it, and communicate those procedures to TT (which may or may not involve amending your return). And the increased Child Tax Credit might not be effective until tax year 2021 (returns filed in 2022). In any case, TT must program, test and get IRS approval. So nothing is going to happen for a while.
