In August 2021, NIST’s Crypto Publication Review Board initiated a review process for NIST Special Publication (SP) 800-38D, Recommendation for Block Cipher Modes of Operation: Galois/Counter Mode (GCM) and GMAC (2007).
On August 23, 2023, NIST proposed to revise SP 800-38D and received two public comments in response.
NIST has decided to revise SP 800-38D. See the full announcement for more details, links to comments received, and ways to monitor future developments.