I saw this somewhere on Xitter or The Other Place. I hadn’t heard that there had been any sort of re-evaluation or more documents. The first document is dated 14 April 2023, so just before the first test, IFT-1:
WRITTEN RE‐EVALUATION OF THE 2022 FINAL PROGRAMMATIC ENVIRONMENTAL ASSESSMENT FOR THE SPACEX STARSHIP/SUPER HEAVY LAUNCH VEHICLE PROGRAM AT THE BOCA CHICA LAUNCH SITE IN CAMERON COUNTY, TEXAS
Starship/Super Heavy Vehicle Ocean Landings and Launch Pad Detonation Suppression System
and following letters and documents are below it, dated as early as October 2022. 122 pages, oy vey, but a lot of repetition. I don’t know enough to know whether there was anything significant, unless the FAA saying (paraphrasing) “these are some changes and considerations, but they don’t have significant impact”. There were changes expanding the landing zones, and more biological details, and lots more math about sound effects.