Date: 2026-05-02
Scope: Litecoin Core 0.21.5.4, docker-litecoin-core 0.21 images, and reviewed Electrum-LTC macOS artifact notes.
Status: Findings and local patch suggestions from a focused security/correctness/release-engineering audit.
The most urgent known MWEB consensus issue appears addressed in Litecoin Core 0.21.5.4, but the audit found several security-adjacent correctness and release-process issues that should be patched or reviewed by maintainers. The highest-priority items are macOS release validation gaps, stale MWEB transaction state on object reuse, incorrect binary-verifier infrastructure, uninitialized versionbits override heights, and Docker supply-chain weaknesses.