The tweet has a link to this 36 page document, looks recent to me:
https://www.supremecourt.gov/opinions/19pdf/19-177_b97c.pdf
SUPREME COURT OF THE UNITED STATES
Syllabus
AGENCY FOR INTERNATIONAL DEVELOPMENT
ET AL. v. ALLIANCE FOR OPEN SOCIETY
INTERNATIONAL, INC., ET AL.
CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR
THE SECOND CIRCUIT
No. 19177. Argued May 5, 2020Decided June 29, 2020
https://t.co/KBpbvVUVSy; The Red-Headed Libertarian (@TRHLofficial) August 13, 2020
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The docment at the link above from your post, has October 2019 at the top of it.
So, I assumed.