# Ray 2.5.1 — Ray-2.5.1

- Product: Ray (https://whatsnew.fyi/product/ray)
- Vendor: Anyscale
- Date: 2023-06-21
- Version: 2.5.1
- Original notes: https://github.com/ray-project/ray/releases/tag/ray-2.5.1
- Permalink: https://whatsnew.fyi/product/ray/releases/2.5.1

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** — Build Python wheels on Mac OS for Python 3.11
- **fixed** — Don't error on eventual success when running with auto-recovery in Ray Train
- **fixed** — Fix a bug that can cause undefined behavior when clusters attempt to scale up aggressively in Autoscaler
- **fixed** — Fix mypy error where module "ray" does not explicitly export attribute "remote"

The Ray 2.5.1 patch release adds wheels for MacOS for Python 3.11.
It also contains fixes for multiple components, along with fixes for our documentation.

##### Ray Train
🔨 Fixes:
* Don't error on eventual success when running with auto-recovery (#36266)

##### Ray Core

🎉 New Features:
* Build Python wheels on Mac OS for Python 3.11 (#36373)

🔨 Fixes:
* [Autoscaler] Fix a bug that can cause undefined behavior when clusters attempt to scale up aggressively. (#36241)
* Fix mypy error: Module "ray" does not explicitly export attribute "remote" (#36356)