Release Notes - v0.186.3

v0.186.3 (July 6, 2026)

Title: Tolerate Conway witness duplicates and refresh the lint workflow

Date: July 6, 2026

Version: v0.186.3

This release tolerates duplicate Conway witness members in historical blocks and refreshes the GitHub Actions lint workflow.

💪 Improvements

• Fixed Conway witness decoding for tolerated tag-258 fields: ConwayTransactionWitnessSet.UnmarshalCBOR now tolerates duplicate members in vkey witnesses, bootstrap witnesses, native scripts, and plutus data for Conway protocol versions 9 through 11, so historical Conway blocks no longer fail with duplicate member in set for those fields. Plutus V1, V2, and V3 script sets still reject duplicates.

• Updated the GitHub Actions lint workflow: golangci/golangci-lint-action now runs at version 9.3.0 instead of 9.2.1, which affects lint output and behavior in CI only.

🙏 Thank You

Thank you for following gOuroboros releases.

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