Is Stellar XLM Going Quantum-Resistant? Here Is What the New Roadmap Says

TLDR: Stellar XLM is moving quantum-resistant after SDF published its Quantum Preparedness Plan on June 9, 2026. Stage 1 adds ML-DSA-44 and ML-DSA-65 post-quantum signature support to Soroban smart contracts in 2026. Stellar’s key rotation model allows quantum-safe upgrades without changing account addresses or migrating balances. INRIA research cut the qubit estimate for breaking elliptic [...]

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