# Tesseract.js v5.1.0

- Product: Tesseract.js (https://whatsnew.fyi/product/tesseract-js)
- Vendor: naptha
- Date: 2024-05-07
- Version: v5.1.0
- Original notes: https://github.com/naptha/tesseract.js/releases/tag/v5.1.0
- Permalink: https://whatsnew.fyi/product/tesseract-js/releases/v5.1.0

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.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — Add line size metrics to blocks output including rowAttributes property with ascenders, descenders, and row_height metrics on line objects

##### What's Changed
* Added line size metrics to `blocks` output (#906)
   * `line` objects now include a property named `rowAttributes`, which is an object containing `ascenders`, `descenders`, and `row_height` metrics
   * These metrics allow for manual font size calculations that are more accurate than using the `font_size` property.
* Updates to documentation, types, and dependencies

##### New Contributors
* @Kishlay-notabot made their first contribution in https://github.com/naptha/tesseract.js/pull/896
* @k-nero made their first contribution in https://github.com/naptha/tesseract.js/pull/922

**Full Changelog**: https://github.com/naptha/tesseract.js/compare/v5.0.5...v5.1.0