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Can I upgrade my Ubuntu software to the latest version in 20.04? Can I upgrade it to the latest version used in 20.10?

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    You can upgrade to the versions that are in the 20.04 repositories by running sudo apt update; sudo apt upgrade. If you try to update software to any other versions you risk to break the system. If you need 20.10 functionality you must upgrade to 20.10.
    – Soren A
    Commented Dec 16, 2020 at 16:44
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    There is a tradeoff: 20.04 (LTS) has older software, but is supported for five years. 20.10 has newer software, but is supported for nine months, after which you must migrate to 21.04, then 21.10, etc.
    – user535733
    Commented Dec 16, 2020 at 17:27

1 Answer 1

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  1. Update the list of available packages and their versions without upgrading them:

    sudo apt update
    
  2. Actually upgrade the installed packages while also removing redundant packages without causing data dependency issues, thanks to the "dist" in the command (which is better in my opinion):

    sudo apt dist-upgrade
    
  3. Make sure that the update-manager-core package is installed:

    sudo apt install update-manager-core
    
  4. Run:

    sudo vim /etc/update-manager/release-upgrades
    

    Change the value of Prompt from lts to normal. This is needed because 20.10 is not an LTS.

  5. Upgrade from 20.04 to 20.10 (after upgrading all the packages):

    sudo do-release-upgrade 
    
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