How to get the kernel changes between Rocky Linux 8.8 and 8.10

Rocky Linux Tech Help
1

According the Rocky Linux Release and Version Guide - Rocky Linux Wiki
Rocky Linux 8.8 kernel version is 4.18.0-477.10.1
Rocky Linux 8.10 kernel version is 4.18.0-553.
How can I get the detailed changes (changlog/source) between kernel 4.18.0-477.10.1 and 4.18.0-553?
Will there be any performance impact if update to Rocky Linux 8.10 + kernel 4.18.0-553?

2

One way to see what have update in kerenel to read the kernel change log. like

$ rpm -q --changelog kernel-4.18.0-553.5.1.el8_10.x86_64 |more
* Wed Jun 05 2024 Release Engineering <releng@rockylinux.org> - 4.18.0-553.5.1
- Adding prod certs and changed cert date to 20210620 (Sherif Nagy)
- Adding Rocky secure boot certs (Sherif Nagy)
- Fixing vmlinuz removal (Sherif Nagy)
- Fixing UEFI CA path (Sherif Nagy)
- Porting to 8.10, debranding and Rocky branding (Louis Abel)
- Fixing pesign_key_name values (Sherif Nagy)
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3

I would look at the change log of the kernel package. rpm -q kernel --changelog. You can view it on our git too. Also look at centos stream for other details.

You are recommended to update to full. Do not cherry pick packages, especially the kernel. There should be very little, if any, performance impact.

4

Thanks a lot for sharing this!

5

Thanks for sharing these info.

  1. for the shared centos stream , seems there is no update since last year.
  2. With regard to the performance impact (update kernel 4.18.0-477 to 4.18.0-553), you mention there should be very little, is it improvement or degrade ?
6

Any performance changes, whether it’s detrimental or an improvement, will be subjective.

Some may say there’s an improvement, some may say they’ve seen no changes, some may say there’s problems and those problems will vary on the affected hardware components. It’s going to be based on the hardware in your system and the changes that came to kernel.

There is no way for us to really say what will be a problem or an improvement overall. Really the only way to see is performing an update and seeing what happens.

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7

OK, thanks a lot for your clarification!

8

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