yt 3.4 release notes

The yt community is proud to announce the release of yt 3.4.0. This is a major release and includes a number of new features, minor improvements, and bugfixes.

yt ( is an open source, community developed toolkit for the analysis and visualization of volumetric data.

Since our last major release we have moved code hosting to GitHub. If you are interested in contributing to yt, please see our new home at

In addition, we have merged 450 pull requests from 44 contributors, including 19 new contributors:

The bolded names indicate first-time contributors. We extend our sincere gratitude to everyone who has contributed!

See the changelog below for a summary of new features, changes, and bugfixes.

For more information, including installation instructions, links to community resources, and information on contributing to yt’s development, please see the yt homepage at and the documentation for yt 3.4.0 at

Binaries for yt 3.4.0 are available via pip and conda. If you installed via the install script or use conda to manage your python installation, you can update yt via:

$ conda update -c conda-forge yt

And via pip if you manage your python installation with pip:

$ pip install -U yt

As always, if you have any questions, concerns, or run into any trouble updating please don’t hesitate to send a message to the mailing list or stop by our Slack or IRC channel.

yt is the product of a large community of developers and users and we are extraordinarily grateful for and proud of their contributions. Please forward this announcement on to any interested parties.

The yt development team

Major Changes and New Features

Minor Enhancements and Bugfixes