2. METviewer Release Information

2.1. METviewer Release Notes

When applicable, release notes are followed by the GitHub issue number which describes the bugfix, enhancement, or new feature: https://github.com/dtcenter/METviewer/issues

2.1.1. Version v6.2.4 Release Notes (20260320)

Bugfixes

  • Bump version of jackson-core to 2.21.1 to resolve CVE (#657)

2.1.2. Version v6.2.3 Release Notes (20260225)

New Features

None

Enhancements

  • Updated version of log4j and junit jar files to resolve CVEs

  • Docker image upgraded to use Python 3.14.3

Bugfixes

None

Documentation

None

2.1.3. Version v6.2.2 Release Notes (20260212)

New Features

None

Enhancements

  • Updated version of tomcat-jdbc jar to 9.0.115 to resolve CVEs

Bugfixes

None

Documentation

None

2.1.4. Version v6.2.1 Release Notes (20260116)

New Features

None

Enhancements
Bugfixes

  • Set PRE_LOAD_CHROME to assist with creating Python plots using Docker

Documentation

None

Note

This release was recreated on 2026-01-28 to include a hotfix to the Docker image. No source code was modified.

2.1.5. Version v6.2.0 Release Notes (20251113)

New Features

None

Enhancements

  • Add release-docker-images.yml workflow to routinely rebuild Docker images and scan for CVEs (#586)

  • Enhance the ‘Create Release Docker Images’ METplus workflows to determine and build the most recent bugfix versions (METplus-Internal #64)

Bugfixes

  • Bugfix- METviewer6.1 fix mv_batch script (#605)

Documentation

None

2.2. METviewer Upgrade Instructions

Note

For Mac OS users who install Docker containers, Docker currently only supports the latest two versions of Mac OS. Check the latest Docker user’s documentation to ensure that your Docker and MacOS environments are compatible.

Note

In the METviewer-6.1.0-beta2 release, METviewer switched from development with Python 3.10.4 to development with Python 3.12. View the met_plus_requirements.txt/nco_requirements.txt file at the top level of the repository for version numbers for the corresponding third-party packages.

Note

Kaleido and Plotly were updated (1.0.0 and 6.1.1 respectively) to address the pending deprecation of kaleido 0.x versions (after September 2025).

Plotly/kaleido will no longer include Chrome. The METviewer Dockerfile was updated to retrieve and install Chrome.

ATTENTION: Mac M1/M2 processors (Apple Silicon)

METviewer docker images built or run on a Mac with the M1/M2 processor (Apple silicon) will result in an error emanating from Plotly/kaleido. As a result, no plot is generated.

Docker images built or run on AMD64 platforms (i.e. x86-64, Mac Intel) can still successfully generate a static image.

The Plotly team has been contacted about this issue, and a response is pending.

Note

The METviewer batch module now generates a .configure directory in the user’s home directory. Verify that write permissions are correctly set to allow the creation of this directory. This provides a workaround to a Chrome/choreographer permission issue that occurs when a Chrome download occurs at runtime. The METviewer code now uses the existing Chrome (choreographer library) installed in the Python environment (to avoid downloading Chrome at runtime). The choreographer library is included in the kaleido package. The kaleido package is currently not available via conda, but can be installed via pip.