What happened
In a retrospective published on 6 August 2026, the Civil Infrastructure Platform (CIP) Kernel Working Group described its Super Long-Term Support model, which targets at least ten years of support for selected kernel series. Examples include linux-6.12-cip through 2035 and linux-6.1-cip through 2033. These support periods apply to specific CIP-maintained branches and their defined scope of coverage. [1]
The report describes continuous backporting of security fixes and critical bug fixes, vulnerability assessments for individual configurations, and automated testing with KernelCI and LAVA. For older series whose upstream LTS support has ended, CIP limits its own maintenance to selected architectures and configurations supplied by its members. [1]
Why it matters for manufacturers
An industrial device may need support long after an ordinary software release cycle ends. Keeping a stable codebase can help preserve product behavior, but maintaining security still requires selecting relevant fixes, adapting them, checking dependencies, and testing the resulting system.
Coverage is therefore important. Testing on reference boards does not automatically cover a manufacturer’s custom drivers, hardware revisions, or applications. A useful support commitment identifies the configurations it covers and explains how changes are tested.
The kernel is only one part of the product. User-space libraries, services, build tools, and local modifications also need maintenance. Plan their support alongside the kernel’s lifecycle.
How to plan for long-term support
- Compare the product’s support period with the maintenance windows for its kernel and user-space components.
- Document differences between the product and the reference hardware and configurations covered by upstream suppliers.
- Assign responsibility for local patches and maintain repeatable product tests throughout the support period.
The engineering takeaway
Evaluate the work behind a support commitment: how fixes are selected, which configurations are covered, and how changes are validated. The support end date is only one part of that assessment.
Primary source
- Civil Infrastructure Platform: A Decade of Stability: 10 Years of the CIP Kernel WG6 August 2026. Written by Nobuhiro Iwamatsu of Toshiba.
Source reviewed on . The manufacturer guidance and engineering takeaway reflect Firmdura’s analysis.