# micropython v1.22.1 — Patch release for rp2 atomic mutex

- Product: micropython (https://whatsnew.fyi/product/micropython)
- Vendor: micropython
- Date: 2024-01-05
- Version: v1.22.1
- Original notes: https://github.com/micropython/micropython/releases/tag/v1.22.1
- Permalink: https://whatsnew.fyi/product/micropython/releases/v1.22.1

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- **fixed** — Race condition and potential deadlock in the rp2 port's mp_thread_begin_atomic_section() function when the second core is in use

This is a patch release to fix a race condition and potential deadlock in the rp2 port's `mp_thread_begin_atomic_section()` function, when the second core is in use.