The Census Bureau announced on 1/14/2021 the new P.L. 94-171 geographic support products.

They’ll be released on a flow basis starting January 19th, and ending no later than February 28th..

Here’s the page it directed me too:

https://www.census.gov/programs-surveys/decennial-census/about/rdo/summary-files.html?utm_campaign=20210114MSC20s1ccnwsrs&utm_medium=email&utm_source=govdelivery#P2

Or maybe follow the bread crumbs using this outline: