Release Terminology

Lustre releases are numbered with semantic versions, such as 2.17.0 or 2.17.52.

Versions have Major.Minor.Release.Patch numbers:

• The Major version indicates significant functional change and possibly protocol incompatibility from previous major versions.
• The Minor version indicates important new features, but maintains compatibility back to at least the previous LTS release.
• The Release version indicates bug fixes and minor new functionality or enhancements that have been tested .
  • Release versions .0 through .49 indicate stable maintenance releases.
  • Release versions .50 through .99 indicate development releases that may contain major new functionality and possibly (temporary) protocol incompatibilities, and are not recommended for general production usage.
• The Patch version indicates individual fixes and enhancements.

Occasional Lustre releases will be designated as LTS (Long Term Stability) releases and have a series of maintenance releases that will include only small fixes and not major new functionality. 2.15.8 is the current LTS release. See: http://lustre.org/roadmap/ for details.