Sigstore Sigstore Community Blog

transparency

Rekor v2 GA - Cheaper to run, simpler to maintain

Oct 10, 2025 · Hayden Blauzvern, Google

We are very excited to announce the General Availability of Rekor v2! Rekor v2 is a redesigned and modernized Rekor, Sigstore’s signature transparency log, transitioning its backend to a tile-backed transparency log implementation to simplify maintenance and lower operational costs. Learn more about Rekor v2 in our previous blog post announcing Alpha. We have added support for Rekor v2 upload and verification to Cosign v2.6.0, along with the Go, Python, and Java clients.

sigstore rekor transparency

Rekor v2 - Cheaper to run, simpler to maintain

Apr 17, 2025 · Hayden Blauzvern, Google

We are very excited to announce the alpha release of Rekor v2! Rekor v2 is a redesigned and modernized Rekor, Sigstore’s signature transparency log, transitioning its backend to a modern, tile-backed transparency log implementation to simplify maintenance and lower operational costs. Major changes include: A new storage backend, replacing Trillian with Trillian-Tessera. Tile-based logs are cheaper to run and easier to deploy, maintain and scale. To learn more about the benefits of tile-based logs, read this blog post A redesigned and simplified API, using the learnings from operating public-good Rekor over the past 2 years Stronger security guarantees that the log remains append-only by integrating witnessing directly into Rekor (To be implemented) For the initial release, we are providing a binary and container for developers.

sigstore rekor transparency