Solana Foundation Outlines Phased Quantum Readiness Plan, With Two Developer Teams Converging on Falcon Signatures

The Solana Foundation published a quantum readiness update on Monday, revealing that two of the network’s core developer teams have independently converged on the same post-quantum upgrade path.

Anza and Jump Crypto’s Firedancer, which together represent a significant portion of Solana’s validator stake, each studied post-quantum migration paths separately and arrived at the same conclusion: a new digital signature scheme called Falcon, specifically designed for high-throughput blockchains that require compact signatures. Both teams have already built initial implementations, available on their respective GitHub repositories. The foundation said the migration, when it happens, will not meaningfully affect network performance, addressing a significant concern for users.

This story is an excerpt from the Unchained Daily newsletter.

The roadmap the foundation outlined is phased and tied to the evolution of quantum computing capabilities rather than an arbitrary timeline. The first phase involves continued research and performance testing of Falcon and alternative schemes. If quantum computing begins to pose a credible threat, the next step would be introducing post-quantum cryptography for newly created wallets. Existing wallets would then be migrated to the selected standard.

“Quantum is still years away,” the foundation said, “and if and when it materializes, the work to migrate Solana is well-researched, understood, and ready to deploy.”

The announcement comes as a Google Research paper found a roughly 20-fold reduction in the number of physical qubits needed to crack current cryptographic schemes compared to earlier estimates, tightening the theoretical timeline.

As Unchained reported in December, Solana had already tested quantum-resistant signatures on a production-like testnet in partnership with Project Eleven, with those tests showing no major performance trade-offs despite the heavier computational demands.

The foundation in its recent post also pointed to Blueshift’s Winternitz Vault, a quantum-resistant primitive that has been live on Solana for more than two years and was directly cited in a Google Quantum AI whitepaper as a leading example of proactive post-quantum work in the industry. The foundation said no immediate protocol change is planned, but that the ecosystem has the research, infrastructure, and developer alignment to act quickly if conditions change.