# What changed in setuptools

> 1 changes in setuptools 83 from its official release notes, upgrade guides and advisories: 1 security. Each one cited. Sources checked 2026-10-18. HTML: https://unstale.sh/pypi/setuptools/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## setuptools 83

### Security

- setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+ (83.0.0) — [security advisory](https://github.com/advisories/GHSA-H35F-9H28-MQ5C)