Tested Runtimes for 2024.1

At the start of the 2024.1 development cycle, the current LTS or stable distribution versions are:

  • Ubuntu 22.04

  • Debian 12

Additional testing for a smooth upgrade

  • Debian 11 (Supported in previous SLURP release 2023.1)

Best Effort

This distribution list is the best effort to test them in OpenStack CI/CD. These may not be part of integrated testing and may be tested periodically only.

  • CentOS Stream 9

  • Rocky Linux 9

Python Runtimes for 2024.1

It is the policy that each OpenStack release cycle will target the latest available version of Python; default Python runtime on the distributions listed above; and versions used in integration tests at the start of the cycle, at least until the point when all projects have migrated to a later version.

Also, as per the Python testing requirements defined in Project Testing Interface: Python, projects should avoid removing Python versions that have not reached EOL without a solid reason.

Based on the criteria above, all Python-based projects must target and test against, at a minimum:

  • Python 3.8 (available as default in Ubuntu 20.04) Python 3.8 should be the minimum supported/required version for 2024.1. This does not imply that Ubuntu 20.04 is the minimum supported distribution but it may be used for tox testing. supporting Python 3.8 does not require full tempest testing on Ubuntu 20.04, but py38 unit tests are expected as a minimum requirement for all Python projects. The minimal requirement for testing jobs against Python versions above is to ensure language compatibility, having more extensive testing is allowed.

  • Python 3.9 (available as default in Debian 11 and Centos 9 Stream) This will become the future minimum supported version for 2024.2 when Python 3.8 is EOL. This will remain the minimum supported version until 2025.2 when Python 3.9 is EOL.

    In previous cycle testing, we have not seen much incompatible change between Python 3.8 and Python 3.10, it is okay to skip running the Python 3.9 testing jobs assuming that anything that works on Python 3.8 and 3.11 coverage is provided.

  • Python 3.10 (available as default in Ubuntu 22.04)

    In previous cycle testing, we have not seen many incompatible changes between Python 3.8 and Python 3.10. It is okay to skip running the Python 3.10 testing jobs assuming that anything that works on Python 3.8 and 3.11 will also work on 3.10.

    Note: as most tempest jobs run on Ubuntu 22.04, it is expected that python 3.10 will be tested in tempest jobs. As such, it will be transitively tested for compatibility even without explicit unit and functional tests.

  • Python 3.11 (available as default in Debian 12)

    This is the upper bound of required testing for 2024.1.

More details on Python requirements can be found in Project Testing Interface: Python.

Node.js Runtime for 2024.1

Based on the available and supported versions of Node.js (in either our LTS or stable distributions or an external source) all JavaScript testing should target:

Ref: https://nodejs.org/en/about/previous-releases/

  • Node.js 20

More details on Javascript requirements can be found in Project Testing Interface: JavaScript.