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Upgrade Kubuntu 25.04 to Kubuntu 25.10

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    #1

    [Pre-Install] Upgrade Kubuntu 25.04 to Kubuntu 25.10



    I'm wondering if it's possible to upgrade to version 25.10 from version 25.04 without having to format the HD, thus keeping all the various programs such as browsers and email clients, etc.

    If it is possible, how can it be done?

    Thank you so much for any replies.
    ​
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    #2
    Originally posted by checco View Post

    I'm wondering if it's possible to upgrade to version 25.10 from version 25.04 without having to format the HD, thus keeping all the various programs such as browsers and email clients, etc.

    If it is possible, how can it be done?

    Thank you so much for any replies.
    ​
    It is possible. As long as your package manager isn't set to upgrade to LTS releases only, you'll eventually get the notification (mine hasn't arrived as yet). Discover--->Settings--->Software Sources (If it doesn't show as it does that from time to time due to a bug, just run
    Code:
    sudo software-properties-qt
    from the terminal. Go to the "UPDATE" Tab and check the last section "RELEASE UPGRADE". Make sure it's set to normal releases.

    Click image for larger version Name: softwareproperties.png Views: 0 Size: 59.2 KB ID: 688726
    Challenges are what that keeps us from the borderline of boredom in life's journey. Linux user no. 419401 currently running Kubuntu 24.04
    _______________________________________________
    Current System: Beelink Mini PC, AMD Ryzen 7 5800H 8 Core(Up to 4.4GHz), 32GB DDR4 RAM 1TB NVME M.2 SSD, SER5 MAX Mini Desktop Computer with TCL BeyondTV5 serving as my monitor. ​
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      #3
      You can also see https://help.ubuntu.com/community/Qu...grades/Kubuntu .

      Those are comments of other people:

      It appears upgrades have not been switched on yet. This is normal, and normally take a few hours or even sometimes days before the main Ubuntu release team switch them on.
      > > The rust-coreutils bug was not fixed: https://bugs.launchpad.net/ubuntu/+s...s/+bug/2125535

      > Do you have any recommended commands to remove those rust-coreutils and instead use the standard coreutils?

      For Kubuntu 25.10, this worked for me:
      Code:
      sudo apt remove --allow-remove-essential rust-coreutils coreutils-from-uutils sudo-rs
# Avoid that these packages are removed when executing e.g. `sudo apt autoremove`
sudo apt install iputils-ping netcat-openbsd
      ​
      Last edited by Ganton; Yesterday, 01:28 PM.
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        #4
        very kind, thank you​
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          #5
          As many will discover; I did; upgrading to 25.10 (from 25.04) today (October 9, 2025) from the command line using sudo do-release-upgrade will return the message: No new release found.

          AI Overview

          As of October 9, 2025, running
          sudo do-release-upgrade normally won't upgrade you to Kubuntu 25.10 because the distribution was only released today. There is a standard waiting period before the release upgrade tool is fully enabled for general users, giving the development team time to monitor for any critical post-release issues.

          How to upgrade

          To upgrade your system today, you must use the -d option to explicitly target the newly released, or "development," version.
          • First, ensure your current system is fully up to date by running the following commands in a terminal: sh
          • sudo apt update sudo apt full-upgrade
          • Once your system is fully patched, start the release upgrade with the -d flag: sh
          • sudo do-release-upgrade -d
          • Follow the on-screen instructions to complete the upgrade.
          Why do-release-upgrade has a delay

          The delay is an intentional safety measure to ensure a stable upgrade path for the majority of users.
          • Stability testing: Even after the final release, the Ubuntu Release Team continues to test the upgrade path itself. During this period, they can fix any bugs that might cause a system to break during the transition.
          • Gradual rollout: The automated upgrade notification is typically enabled a week or two after the official release date. This prevents a rush of users from overloading the servers and ensures a smoother experience for everyone.
          • LTS upgrades are different: For upgrades between Long Term Support (LTS) releases, the waiting period is even longer, often until the first point release (e.g., 24.04.1) arrives, which is about three months after the initial release.
          ​
          Windows no longer obstruct my view.
          Using Kubuntu Linux since March 23, 2007.
          "It is a capital mistake to theorize before one has data." - Sherlock Holmes​
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            #6
            Another person wrote:

            Ubuntu 25.10 has been released thus far for NEW installs.

            If you refer https://changelogs.ubuntu.com/meta-release you'll see that "Supported: 0" so the Ubuntu Release team have not yet approved and thus not opened the release-upgrade path to 25.10.

            That meeting and review usually starts early in the week AFTER the actual ISO release, which is where we are now.

            Flavors like Kubuntu are no different to Ubuntu in this regard.
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