Certificate

[casseday]

Does Zorin 18.1 and it updates contain all necessary certiticates required by the end of the month?

[swarfendor437]

Hi and welcome.

Can you expand on this? Are you referring to changes planned by Microsoft to blacklist Linux kernel efi shims?

[Ponce-De-Leon]

Welcome to the Forum!

There are Updates that adress that:

Secure Boot Certificate expiration effects

It seems that there is something coming. I saw Updates (not all available yet) in the Software Updater what seems to adress that: [Bildschirmfoto vom 2026-06-10 11-28-26] When You click on each and then look at the Changelog, You see these: [Bildschirmfoto vom 2026-06-10 11-28-47] [Bildschirmfoto vom 2026-06-10 11-29-04] [Bildschirmfoto vom 2026-06-10 11-29-12] When You click on the blue Link, You get a Launchpad Website where at the Top is a List of Packages but when You scoll down, …

You can also check that via Terminal:

Secure Boot Certificate expiration effects

When You have an already enabled Secure Boot and Windows is up-to-date, this should be fine for You. Microsoft already has delivered and still delivers the Updates. And when the mentioned BIOS Update adresses that, too You should have no Issues. On Zorin, You can check it with this, too: