Overview
- The Stellar Development Foundation unveiled the Quantum Preparedness Plan on Tuesday, June 9, laying out a concrete three‑stage path to protect the network from future quantum attacks.
- Stage 1, scheduled for 2026, will add post‑quantum signature verification functions to the Soroban smart‑contract host so enterprise wallets can begin migrating immediately.
- Stage 2, targeted for 2027, will introduce opt‑in quantum‑safe signer types at the protocol level so existing accounts can add new signers without changing their addresses or moving funds.
- Stage 3 will deprecate the current Ed25519 signing method only after quantum progress and community readiness justify the change, and the foundation has left the treatment of long‑dormant accounts open for community discussion.
- The plan builds on tightening industry timelines for post‑quantum readiness, raises practical issues for wallets, hardware and zero‑knowledge systems, and has produced a muted market response so far.