Cumulus Linux Release Versioning and Support Policy

This article outlines the release version numbering structure, and support policies, for:

  • Cumulus Linux 4.0 and later
  • Cumulus Linux and Cumulus RMP 3.0 and later (including 3.7 ESR and later)

Earlier releases of Cumulus Linux and Cumulus RMP are no longer supported.

Version Definitions

The Cumulus Linux installation file name includes the version number, in the form of CumulusLinux_x.y.z; for Cumulus RMP, it is CumulusRMP_x.y.z.

  • x represents the major release version number. An increased major release version means that the release might include:
    • Significant architectural or engineering changes.
    • New hardware platforms, including new ASICs or chipsets.
    • New functionality and features.
    • Bug fixes.
    • Security updates.
  • y represents the minor release version number. An increased minor release version means that the release might include:
    • New hardware platforms, including new ASICs or chipsets.
    • New functionality and features.
    • Bug fixes.
    • Security updates.
  • z represents the maintenance release version number. An increased maintenance release version might include:
    • New hardware platforms for existing ASICs or chipsets.
    • Bug fixes and updates.
    • Security updates.

Release, Support Lifecycle and Support Policy

NVIDIA supports both mainline and Extended Support Releases (ESRs). This support mechanism allows NVIDIA to maintain its desire to innovate, while providing customers with stable releases as soon as it meets the architectural needs.

Consistent with this two-pronged approach, the mainline and ESR code branches are separate code bases. As such, issues and fixes in one branch are independent of the other. NVIDIA prioritizes the ESR branch for stability foremost, so any fixes on that branch focus on critical-impact security fixes and urgent bug fixes. This ensures customers deploying an ESR release can experience minimal disruption in their day to day network operations.

The following diagram illustrates the ESR and mainline branches, and the table below it describes the characteristics of each.

 MainlineExtended-Support Release (ESR)
FunctionalityLatest featuresNo new functionality
StabilityStable and robustHighly stable and robust
FrequencyMinor releases every quarter; maintenance releases as neededMaintenance releases as needed
Support Duration (Software updates and support)

ESR branch, before releasing ESR: Software updates and Global Support Services (GSS) support

ESR branch, after releasing ESR: 12 months GSS support only from date of ESR release

3 years from release date of version
Software UpdatesNew functionality, security updates, bug fixesSecurity updates and critical bug fixes
Security UpdatesASAPASAP

Product End of Life

Cumulus Linux and Cumulus RMP 3.7.12 have transitioned into the extended support phase (ESR). Customers can choose to continue using Cumulus Linux 3.7 ESR, a mature and stable operating system, or they can upgrade to Cumulus Linux 4.y.z, with the latest and greatest features. NVIDIA is going to support and maintain Cumulus Linux and Cumulus RMP 3.7 ESR for 3 years, until 21 February, 2023.

Cumulus Linux VersionESR Start DateEnd of Life Date
4.y.zTBDTBD
3.7.12 - 3.7.z ESR21 February, 202021 February, 2023
3.0.0 - 3.7.11N/A31 December, 2020
2.5.6 - 2.5.122 February, 20162 February, 2019
2.5.5 and earlierN/A31 December, 2016

Upgrade Process

For information regarding upgrading from previous Cumulus Linux releases, refer to the Cumulus Linux upgrade documentation.