TLS 1.2 Officially Frozen: No New Features, Only Security Fixes
RFC 9851: TLS 1.2 is in Feature Freeze
RFC 9851 declares TLS 1.2 in feature freeze, allowing only urgent security fixes, new exporter labels, and ALPN IDs. This move, driven by TLS 1.3's growing adoption and superior security, also means no post-quantum cryptography will be specified for TLS 1.2. The IETF's TLS working group now focuses exclusively on TLS 1.3 and later, signaling a clear end-of-life for TLS 1.2 enhancements.
Put bluntly, PQC for TLS 1.2 will not be specified at any time; anyone wishing to deploy PQC should expect to use TLS 1.3.