# GitHub CodeQL 2.26.3 improves GitHub Actions queries and JavaScript modeling

- Product: GitHub (https://whatsnew.fyi/product/github)
- Vendor: GitHub
- Date: 2026-08-19
- Original notes: https://github.blog/changelog/2026-08-19-codeql-2-26-3-improves-github-actions-queries-and-javascript-modeling
- Permalink: https://whatsnew.fyi/product/github/releases/2026-08-19-codeql-2.26.3-improves-github-actions-queries-and

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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CodeQL 2.26.3 adds JavaScript, TypeScript, and Vue source modeling and improves the accuracy of several GitHub Actions queries. CodeQL is the static analysis engine behind GitHub code scanning, which…

- **added** — Add JavaScript, TypeScript, and Vue source modeling
- **changed** — Improve the accuracy of several GitHub Actions queries