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2026 Annual Review Hyperledger FireFly

Project Health

Hyperledger FireFly continues to demonstrate strong health as a graduated project. LFX Insights rates the project as Healthy for the 2025 calendar year. The year was marked by two significant releases — v1.3.3 and v1.4.0 — with the latter delivering the Cardano connector as an officially supported plugin, completing a multi-quarter community effort. Across all FireFly repositories, the project accumulated 1,110 GitHub stars and 579 forks, averaged 166 new pull requests per month, and was active on 227 of 365 days. Nineteen contributors were active in the most recent quarter with a 50 % quarter-over-quarter retention rate.

LFX Insights

Full 2025 calendar-year dashboard. The project was active on 227 of 365 days, averaging 166 new pull requests per month with an 11-day merge lead time. Contributor retention held at 50 % quarter-over-quarter across 19 active contributors.

  • OpenSSF Scorecard (viewer): started 2025 at 8.1, dipped to 7.9 mid-year, and closed at 7.5. Effort ongoing to remediate it in 2026.

Maintainer Diversity

FireFly now has 15 maintainers representing four organizations:

Simon Gellis from Sundae Labs was onboarded as a new maintainer in Q3 2025, growing the maintainer base from 14 to 15 and adding a fourth organization. Each organization provides subject matter expertise across specific connectors and core platform components.

A list of all maintainers for Hyperledger FireFly may be found here.

Project Adoption

Hyperledger FireFly continues to see strong enterprise adoption across industries. Notable adopters include SWIFT, Allstate, ExxonMobil, Nationwide, Humana, Mastercard, Fidelity, Deloitte, DTCC, Atago, and CGI Federal. The addition of the Cardano connector in v1.4.0 also opens FireFly to the Cardano ecosystem, as demonstrated by participation in the JulyOfCode hackathon organized by the Cardano community and engagement via Twitter/X spaces.

Goals

Performance Against Prior Goals

2025 goals:

  • Release FireFly v1.3.X — Completed. v1.3.3 was released in Q2 2025 with reliability, security, and documentation improvements. v1.4.0 was released in Q3 2025.
  • Host a developer workshop — Partially met. Rather than a standalone workshop, the team participated in the JulyOfCode hackathon run by the Cardano community and engaged the community via Twitter/X spaces. A traditional developer workshop remains on the roadmap.
  • Continue progress on FIR-18 — Ongoing.
  • Fully onboard the Cardano Connector — Completed. The Cardano connector was merged in Q2 and fully integrated as an official plugin in v1.4.0, with documentation added to the main README.
  • Increase maintainer diversity — Progress made. Simon Gellis (Sundae Labs) was onboarded as a new maintainer in Q3 2025, adding a fourth organization to the maintainer base.
  • OpenSSF Scorecard — Done. The score moved from 8.1 at the start of the year to 7.9 in Q2, then dipped to 7.5 in Q3. This requires focused remediation in 2026.
  • Move FireFly to its own GitHub organization — Not yet completed.
  • Add an ADOPTERS.md file — Not yet completed. Carried into 2026.

Noteworthy accomplishments in 2025

  • Release of FireFly v1.3.3 — reliability enhancements, CVE fixes, CodeQL integration, documentation improvements, and SDK updates.
  • Release of FireFly v1.4.0 — official Cardano connector integration, Go 1.23 upgrade, FireFly Common library update to v1.5.6, subscription filtering fix, and developer experience improvements.
  • Cardano connector is now an officially supported plugin, enabling organizations to build web3 applications on the Cardano blockchain using FireFly.
  • New maintainer onboarded from Sundae Labs, growing organizational diversity to four companies.
  • Active community participation through the JulyOfCode hackathon and Twitter/X spaces engagements with the Cardano ecosystem.

Next Year's Goals (2026)

  • Continue releases (v1.4.X and beyond) with stability and feature improvements
  • Improve and stabilize the OpenSSF Scorecard score above 8.0
  • Complete the GitHub organization migration
  • Add an ADOPTERS.md file to the main FireFly repository
  • Continue growing the connector ecosystem and onboarding additional connector maintainers
  • Host a dedicated developer workshop to engage the broader community
  • Cardano: Integration of Tx3 into the connector, 1.0 stable Pallas libraries update

Help Required

No help required.

Project Lifecycle Stage Recommendation

Hyperledger FireFly should maintain its graduated status. The project continues to demonstrate stable enterprise adoption, consistent releases, growing community engagement, and increasing maintainer diversity. The graduation criteria remain met.