# eigen 5.0.1

- Product: eigen (https://whatsnew.fyi/product/eigen)
- Vendor: libeigen
- Date: 2025-11-11
- Version: 5.0.1
- Original notes: https://gitlab.com/libeigen/eigen/-/releases/5.0.1
- Permalink: https://whatsnew.fyi/product/eigen/releases/5.0.1

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

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- **fixed** — Dirty git state
- **fixed** — Failing geo_homogeneous tests
- **fixed** — Alignment issues
- **fixed** — Missing C++20 <version> header
- **fixed** — BLAS/LAPACK build on windows

A few bug-fixes from the master branch, including
- Dirty git state [#2995]
- Failing geo_homogeneous tests [#2977]
- Alignment issues [#2982, #2984]
- Missing C++20 `<version>` header [#2986]
- BLAS/LAPACK build on windows [#2980]

See the full lists of [addressed bugs](https://gitlab.com/libeigen/eigen/-/issues?state=all&label_name%5B%5D=release%3A%3A5.0.1) and [merge requests](https://gitlab.com/libeigen/eigen/-/merge_requests?state=all&label_name%5B%5D=release%3A%3A5.0.1) for more details.