2029 for full PQC readiness, with hybrid ML-KEM already in TLS and KMS, because future-proofing waits for no one.
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01 02 Paper on TutaCrypt, Tuta's hybrid PQ key establishment for E2EE email, with BR proofs and the usual migration tax.03 NoisePQC++: A Unified NIST-Compliant PQC and Hybrid-PQC Implementation of the Noise Protocol arxiv.orgNoisePQC++ ports Noise to NIST PQC KEMs and hybrid handshakes, then measures the usual latency tax nobody wanted.04 A 2B-handshake study finds PQ-TLS rollout tracks one hybrid, not policy timelines, and latency stays basically flat.