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April 2022

CIP Expands Work on SLTS Kernel Maintenance

By Announcement, Blog, In the News

The Civil Infrastructure Platform project ( – released the first 5.10-based version of its super-long-term stable (SLTS) kernel. The 5.10-based release made official the third CIP kernel series available after 4.4-cip and 4.19-cip. It demonstrates how CIP remains committed to maintaining all SLTS versions for a minimum of 10 years after the original release.

With the recent discontinuation of the 4.4 LTS kernel by its maintainer Greg Kroah-Hartman, the CIP project now requires organized backports to one of its kernels for the first time, independently of the LTS project. The CIP kernel team already expanded its capacity last year and is well prepared to handle this task.

The CIP kernel developers will remain  involved in the review process of patches targeting related LTS kernels. CIP is actively engaged in enhancing the test infrastructure for the Linux Kernel, both through its work on the CIP SLTS Kernels and CIP’s participation in the KernelCI project.

About The Civil Infrastructure Platform (“CIP”)

The Civil Infrastructure Platform (“CIP”) is a collaborative, open source project hosted by the Linux Foundation. The CIP project is focused on establishing an open source “base layer” of industrial grade software to enable the use and implementation of software building blocks in civil infrastructure projects. Currently, civil infrastructure systems are built from the ground up, with little re-use of existing software building blocks.

The CIP project intends to create reusable building blocks that meet the safety, reliability and other requirements of industrial and civil infrastructure. By establishing this ‘base layer’, CIP aims to:

  • Speed up implementation of civil infrastructure systems;
  • Build upon existing open source foundations and expertise without reinventing non-domain specific technology;
  • Establish (de facto) standards by providing a base layer reference implementation;
  • Contribute to and influence upstream projects regarding industrial needs;
  • Motivate suppliers to actively support these platform / provide an implementation; 
  • Promote long term stability and maintainability of the base layer of code; and
  • Adopt the security standard IEC 62443

With respect to project governance, a Governing Board is responsible for financial matters while the Technical Steering Committee oversees the technical direction of the project.

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