# Ray 2.22.0 — Ray-2.22.0

- Product: Ray (https://whatsnew.fyi/product/ray)
- Vendor: Anyscale
- Date: 2024-05-14
- Version: 2.22.0
- Original notes: https://github.com/ray-project/ray/releases/tag/ray-2.22.0
- Permalink: https://whatsnew.fyi/product/ray/releases/2.22.0

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** — Add function to dynamically generate ray_remote_args for Map APIs
- **added** — Allow manually setting resource limits for training jobs
- **changed** — Introduce abstract interface for data autoscaling
- **changed** — Add debugging info for SplitCoordinator
- **fixed** — Don't show AllToAllOperator progress bar if the disable flag is set
- **fixed** — Don't load Arrow PyExtensionType by default
- **fixed** — Don't raise batch size error if num_gpus=0
- **changed** — Update RayTrainReportCallback to only save checkpoints on rank 0 for XGBoost and LightGBM
- **fixed** — Fix the cpu percentage metrics for dashboard process
- **changed** — Improve log viewer so line numbers do not get selected when copying text
- **changed** — Improve log viewer to avoid unnecessary re-rendering which causes text selection to clear

#### Ray Libraries<a id="ray-libraries"></a>

##### Ray Data<a id="ray-data"></a>

🎉 New Features:
- Add function to dynamically generate `ray_remote_args` for Map APIs (#45143)
- Allow manually setting resource limits for training jobs (#45188)

💫 Enhancements:
- Introduce abstract interface for data autoscaling (#45002)
- Add debugging info for `SplitCoordinator` (#45226)

🔨 Fixes:
- Don’t show `AllToAllOperator` progress bar if the disable flag is set (#45136)
- Don't load Arrow `PyExtensionType` by default (#45084)
- Don't raise batch size error if `num_gpus=0` (#45202)

##### Ray Train<a id="ray-train"></a>

💫 Enhancements:
- [XGBoost][LightGBM] Update RayTrainReportCallback to only save checkpoints on rank 0 (#45083)

#### Ray Core<a id="ray-core"></a>

🔨 Fixes:
- Fix the cpu percentage metrics for dashboard process (#45124)

##### Dashboard<a id="dashboard"></a>

💫 Enhancements:
- Improvements to log viewer so line numbers do not get selected when copying text.
- Improvements to the log viewer to avoid unnecessary re-rendering which causes text selection to clear.


Many thanks to all those who contributed to this release: @justinvyu, @simonsays1980, @chris-ray-zhang, @kevin85421, @angelinalg, @rynewang, @brycehuang30, @alanwguo, @jjyao, @shaikhismail, @khluu, @can-anyscale, @bveeramani, @jrosti, @WeichenXu123, @MortalHappiness, @raulchen, @scottjlee, @ruisearch42, @aslonnie, @alexeykudinkin