According to ChainCatcher citing the XRP Ledger Foundation, XRP Ledger’s 2027 roadmap proposes letting users register ML-DSA-44 quantum-resistant signing keys for existing accounts. The upgrade would add about 3.6 KB to each transaction, bringing storage requirements to roughly 3.1 times those of a standard payment, while leaving the base transaction fee unchanged. The article suggests native support for quantum-resistant signatures could become a key Layer 1 differentiator over the next one to two years.