On Tue, Sep 09, 2025 at 11:40:18AM -0400, Pasha Tatashin wrote:

In reality, this is not something that is high priority for cloud
providers, because these kinds of incompatibilities would be found
during qualification; the kernel will fail to update by detecting a
version mismatch during boot instead of during shutdown.

Given I expect CSPs will have to add-in specific version support for
their own special version-pair needs, I think it would be helpful in
the long run to have a tool that reported what versions a kernel build
wrote and parsed. Test-to-learn the same information sounds a bit too
difficult.

Something with ELF is probably how to do that, but I don't imagine a
use in a runtime check consuming this information.

Jason