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Cake day: July 3rd, 2023

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  • No image mode is not required. It is the immutable mode for RHEL. Using image builder and bootc to create and upgrade your images. Ostree is sort of like putting your entire OS in git. For an upgrade it checks out a new branch, updates that branch, then you have to reboot into that branch. That makes the upgrade atomic and gives you the ability to rollback. It’s what Core OS uses and what the Fedora Atomic desktops use. It’s a much bigger thing in RHEL 10 and I suspect will take over a lot of the duties of Satellite at some point.