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  • v0.4.0 b3a4bcdd71

    ZypherOS Kinetic 0.4.0
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    zypher-systems released this 2026-10-26 07:26:13 +00:00 | 13 commits to main since this release

    COSMIC is Kinetic's desktop.

    What's new

    • COSMIC replaces KDE Plasma. COSMIC's login screen, Kinetic's wallpaper and dark theme, and Kinetic's apps in the dock: Files, Chromium, Ghostty, VSCodium, Podman Desktop, DistroShelf, COSMIC Store, and Settings
    • Kinetic's shortcuts: Super+Return, Super+T, and Ctrl+Alt+T open Ghostty; Super+B the browser; Super+E files; Super+Space search. COSMIC's own shortcuts work alongside them
    • Apps: COSMIC's own for files, text, software, video, and screenshots. Okular, Gwenview, Ark, KDE Connect, Partition Manager, and Btrfs Assistant stay, plus a calculator and a system monitor
    • The installer creates your account, and first boot puts it in the docker and libvirt groups, so containers and VMs work without sudo
    • GNOME Keyring holds passwords, unlocked at login
    • Blender renders on AMD GPUs: ROCm's HIP runtime is included (RDNA 1 to RDNA 4)
    • Thunderbolt and USB4 device support (bolt) and Intel's thermal daemon are installed explicitly

    Update after installing

    A fix for COSMIC's own shortcuts (the Super key, Alt+Tab, workspace keys) came after this ISO was built. It arrives as a package update, so after installing, run once:

    sudo dnf upgrade --refresh

    then log out and back in.

    Moving from 0.3.0 with Plasma

    No reinstall is needed. Follow Moving from Plasma to COSMIC: note your sign-ins, update, switch the login screen, then remove Plasma once you're happy. Passwords move from KDE Wallet to GNOME Keyring, so apps that keep secrets in the wallet (Chromium's saved logins, VSCodium, Cursor, gh) need signing in once more.

    Verifying the ISO

    The checksum file is signed with the ZypherOS key, fingerprint 098E 710A DBE3 FEE4 351B 44F4 0EE4 C89F 7AE0 182E (in the repo at packages/kinetic-repos/keys/RPM-GPG-KEY-zypheros):

    gpg --import RPM-GPG-KEY-zypheros
gpg --verify ZypherOS-Kinetic-0.4.0-x86_64.iso.sha256.asc ZypherOS-Kinetic-0.4.0-x86_64.iso.sha256
sha256sum -c ZypherOS-Kinetic-0.4.0-x86_64.iso.sha256

    Write the ISO straight to a USB drive (dd, or Fedora Media Writer). Installing through Ventoy from a large external SSD has failed once and is still being looked into.

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