koob OS v0.1.3

Summary

Koob OS 0.1.3 provides general updates to system dependencies and core components.

• Kubernetes: Upgraded to v1.36.1.
• Container Runtime: Upgraded containerd to 2.3.0 and runc to v1.4.2.
• Networking: Updated CNI plugins to v1.9.1.
• Kernel Upgrade: Updated Linux kernel to v6.18.32, which resolves the "ssh-keygen-pwn" vulnerability (CVE-2026-46333).

Warning

Released artifacts are unsigned. They cannot be cryptographically verified and should only be used for testing purposes. To generate verifiable, secure artifacts, you must build them locally from source.

koob OS v0.1.2

Summary

Koob OS 0.1.2 addresses critical security vulnerabilities and upgrades core system components.

• Security Fix (CVE-2026-31431): Patched the "Copy Fail" container escape vulnerability by hardening the Linux kernel configuration.
• Kernel Upgrade: Updated Linux kernel to v6.18.30.
• GLIBC Update: Updated GLIBC to utilize the latest kernel headers.

Warning

Released artifacts are unsigned. They cannot be cryptographically verified and should only be used for testing purposes. To generate verifiable, secure artifacts, you must build them locally from source.

koob OS v0.1.1

Summary

Koob OS 0.1.1 introduces minor infrastructure upgrades and build system refinements.

• Upgraded Kubernetes to v1.36.0.
• Updated Cilium to v1.19.3 in libvirt deployment examples.
• Improved Build System: Switched GLIBC mirrors.
• Refined Documentation: Updated deployment guides and README to reflect the new versions.

Warning

Released artifacts are unsigned. They cannot be cryptographically verified and should only be used for testing purposes. To generate verifiable, secure artifacts, you must build them locally from source.

koob OS v0.1.0

Summary

Koob OS is a minimal, immutable Kubernetes distribution built from scratch using the Linux kernel and a Go-based user space. It removes the standard Linux user space (Systemd, GNU Coreutils, package managers) and replaces them with a custom Go-based init system (koobd) and shell utilities derived from u-root.

koob OS 0.1.0 marks the initial public release.

Warning

Released artifacts are unsigned. They cannot be cryptographically verified and should only be used for testing purposes. To generate verifiable, secure artifacts, you must build them locally from source.