# mitmproxy v12.1.1 — mitmproxy 12.1.1

- Product: mitmproxy (https://whatsnew.fyi/product/mitmproxy)
- Vendor: mitmproxy
- Date: 2025-05-25
- Version: v12.1.1
- Original notes: https://github.com/mitmproxy/mitmproxy/releases/tag/v12.1.1
- Permalink: https://whatsnew.fyi/product/mitmproxy/releases/v12.1.1
- Labels: Platforms: Desktop

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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- **fixed** — Fix a race condition when updating the flow list in mitmweb

- Fix a race condition when updating the flow list in mitmweb.
  ([#7729](https://github.com/mitmproxy/mitmproxy/pull/7729), @mhils)