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Interview – NXP Linux BSP and Timesys Vigiles Maintenance Service & Security Updates

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Answer: The kernel strategy for NXP’s i.MX family BSPs closely follows the annual cadence of kernel.org’s LTS kernel selection. As soon as kernel.org establishes the next official LTS kernel version, NXP transitions our internal development to that particular kernel. However, the migration of the kernel is only one aspect of our next major release. There may be a number of associated updates to be included, such as a new version to Yocto, updates to U-Boot, and many other package changes we integrate into the Yocto release specific to the i.MX BSP. These factors, plus our rigorous testing process create an inevitable delay between the community version of the latest LTS kernel release and NXP’s i.MX board support package (BSP) based on that same kernel.

We must also consider a number of other factors that come into play between our planned cadence of Linux LTS kernel updates. NXP may introduce new products, or there may be updates to various packages, and of course, there are issue resolutions (including LTS minor version updates) to be considered. Our engineering team must balance all these factors while maintaining consistent quality standards for the entire i.MX product family being supported by each BSP release.

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