Solana Foundation has confirmed a future quantum-security plan for the network, saying its two core developer teams have both chosen Falcon as the digital signature system for a post-quantum path. Early working implementations have already been built. In a blog post dated April 27, 2026, the foundation said large-scale quantum threats may still be years away, but preparation should start well before that point.
Independent reviews by Anza and Firedancer led to the same choice
The update carries weight because the decision did not come from a single team. Solana said Anza and Firedancer, which build critical validator infrastructure, studied the issue separately and arrived at the same result. That kind of independent alignment suggests the plan is not only academically sound but also realistic for production use.
Solana currently relies on Ed25519. According to the foundation, Falcon would offer stronger protection if quantum computers become powerful enough to threaten today’s cryptographic assumptions. At the same time, any replacement has to fit a high-throughput chain. A slower signature scheme would create obvious trade-offs, so performance was part of the selection process from the start.
Why Falcon fit Solana’s performance requirements
Both teams chose Falcon because it combines post-quantum resistance with speed and relatively lightweight operation. That balance matters on a network designed to process a large number of transactions. Solana said it cannot adopt a model that materially slows validation or network flow. Falcon also comes with outside validation: the U.S. National Institute of Standards and Technology (NIST) selected it as one of its approved post-quantum security systems.
No urgent migration for users, but the roadmap is already set
For now, Solana says users do not need to do anything. The current system remains safe, and there is no urgent upgrade requirement. The foundation said, “Quantum is still years away,” while adding that migration plans are well researched, understood, and ready to deploy.
If quantum risk rises, new wallets would be the first to adopt Falcon. Existing wallets would move in a later phase. Work is also happening outside the base network. The report points to Blueshift’s Winternitz Vault, which has been active for more than two years. That gives Solana’s post-quantum push a practical element: the ecosystem is not only drafting plans, it is already testing tools in live conditions.