Stellar already has a post-quantum signature scheme live.
Source reports
- Stellar already has a post-quantum signature scheme live. Protocol 30 added an ML-DSA host function for smart wallets. Next year, classic accounts get to rotate signers without changing their address or losing DeFi positions. @tomerweller walks @CamiRusso through @StellarOrg's… — @DefiantNews (X), Oct 29, 2026, 22:08 UTC
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