Ray version 1.9 has been released! Release highlights include: 

1. Ray Train is now in beta!

2. Ray Datasets now supports groupby and aggregations! See the groupby API and GroupedDataset docs for usage.

3. Ray Docker images for multiple CUDA versions are now provided!

4. We are making continuing progress in improving Ray stability and usability on Windows. We encourage you to try it out and report feedback or issues at https://github.com/ray-project/ray/issues.

5. We are launching a Ray Job Submission server + CLI & SDK clients to make it easier to submit and monitor Ray applications

You can run pip install -U ray to access these features and more. With that, let’s go over the highlights.

LinkRay Train is now in beta 

Ray Train is now in Beta! The beta version includes various usability improvements for distributed PyTorch training and checkpoint management, support for Ray Client, and an integration with Ray Datasets for distributed data ingest.

You can check out the docs to learn more. If you are using Ray Train, we’d love to hear your feedback here!

LinkRay Datasets now supports groupby and aggregations

Ray Datasets now supports groupby and aggregations! This includes multi-column/multi-lambda aggregations, making it much easier to do some aggregation on multiple columns.

See the groupby API and GroupedDataset docs for usage.

LinkRay Docker images for multiple CUDA versions are now provided

Ray Docker images for multiple CUDA versions are now provided! You can specify a `-cuXXX` suffix to pick a specific version. Note that `ray-ml:cpu` images are now deprecated and that the `ray-ml` images are now only built for GPU.

Check out PR #19505 to learn more. 

LinkLaunching a Ray Job Submission server + CLI & SDK client

We are launching a Ray Job Submission server + CLI & SDK clients. The goal of Ray Job submission is to provide a lightweight mechanism for users to submit their locally developed and tested application to a running remote Ray cluster, thus enabling the user to package, deploy, and manage their Ray application as Jobs. These Jobs can be submitted by a Job manager of their choice.

This is currently in alpha, so the APIs are subject to change, but please test it out and file issues on GitHub & discuss.ray.io!

LinkLearn more

This post sums up just some of the release highlights. To learn about all the features and enhancements in this release including continuing progress in improving Ray stability and usability on Windows, visit the release notes. If you would like to keep up to date with all things Ray, follow @raydistributed on Twitter, and sign up for the Ray newsletter.