K01-RT: No
Rationale
Reticulum 1.5.5 Link establishes per-link secrets with Curve25519 ECDH. AES payload protection and forward secrecy do not make this classical key agreement post-quantum; no PQ KEM or hybrid is selected.
Assessment method
Documentary resolution; no new runtime, cryptographic attack or hardware test
Source context
Primary documentation and explicit selected-profile analysis, reviewed 2026-10-15