Regdrift: Open-Source CLI and GitHub Action to Detect Breaking SVD Register Changes

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A developer has released Regdrift, an open-source CLI tool and GitHub Action designed to detect breaking changes between two CMSIS-SVD files. The tool identifies register-map differences such as moved registers, interrupt renumbering, and altered read/write behavior that could impact firmware functionality. Each detected change is classified as BREAKING, WARNING, or SAFE, allowing the tool to serve as a CI gate in development pipelines. Regdrift is available on GitHub and installable via pip, with usage as straightforward as running a single command against two SVD files. The creator is actively seeking feedback from developers who maintain SVDs, HALs, PACs, or firmware repositories to improve classification accuracy and reduce false positives.

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