Ubuntu releases new versions every six months, typically in April and October. Each release follows a version format of year.month, and this schedule is consistent across all Ubuntu flavors, including Kubuntu and Xubuntu. Regular upgrades ensure your system remains secure and up-to-date.

Upgrading Ubuntu manually is straightforward and can be done via terminal commands. This method is necessary when automatic updates are disabled or not working. Upgrading ensures that your system remains supported and continues to receive security updates.

Before upgrading, always back up your data. System upgrades can lead to conflicts or malfunctions, so taking precautions is important. Use the terminal to update your package list, upgrade installed packages, and initiate the release upgrade.

Steps to upgrade to latest version of Ubuntu or Kubuntu:

  1. Back up your system and data.

    Make sure that you have a backup of both data and configuration of the system you're upgrading. System upgrade is not 100% reliable and could result in conflicts and a malfunctioning system.

  2. Open the terminal on your Ubuntu system.
  3. Update the package list for apt.
    $ sudo apt update
    [sudo] password for user: 
    Hit:1 http://archive.ubuntu.com/ubuntu eoan InRelease
    Hit:2 http://archive.ubuntu.com/ubuntu eoan-updates InRelease
    Hit:3 http://archive.ubuntu.com/ubuntu eoan-backports InRelease
    Hit:4 http://archive.ubuntu.com/ubuntu eoan-security InRelease
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    All packages are up to date.
  4. Upgrade the installed packages to the latest available versions.
    $ sudo apt dist-upgrade --assume-yes
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    Calculating upgrade... Done
    0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
  5. Check for the availability of a new Ubuntu version.
    $ do-release-upgrade --check
    Checking for a new Ubuntu release
    Your Ubuntu release is not supported anymore.
    For upgrade information, please visit:
    http://www.ubuntu.com/releaseendoflife
    
    New release '20.04 LTS' available.
    Run 'do-release-upgrade' to upgrade to it.
  6. Initiate the release upgrade using do-release-upgrade.
    $ sudo do-release-upgrade
    Checking for a new Ubuntu release
    Your Ubuntu release is not supported anymore.
    For upgrade information, please visit:
    http://www.ubuntu.com/releaseendoflife
    
    Get:1 Upgrade tool signature [1,554 B]                                         
    Get:2 Upgrade tool [1,348 kB]                                                  
    Fetched 1,350 kB in 0s (0 B/s)                                                 
    authenticate 'focal.tar.gz' against 'focal.tar.gz.gpg' 
    extracting 'focal.tar.gz'
    
    Reading cache
    
    Checking package manager
    Reading package lists... Done
    Building dependency tree        
    Reading state information... Done
    Hit http://archive.ubuntu.com/ubuntu eoan InRelease                            
    Hit http://archive.ubuntu.com/ubuntu eoan-updates InRelease                    
    Hit http://archive.ubuntu.com/ubuntu eoan-backports InRelease                  
    Hit http://archive.ubuntu.com/ubuntu eoan-security InRelease                   
    Fetched 0 B in 0s (0 B/s)                                                      
    Reading package lists... Done    
    Building dependency tree          
    Reading state information... Done
    
    Checking for installed snaps
    
    Calculating snap size requirements
    
    Updating repository information
    Get:1 http://archive.ubuntu.com/ubuntu focal InRelease [265 kB]                                        
    Get:2 http://archive.ubuntu.com/ubuntu focal-updates InRelease [111 kB]                                
    Get:3 http://archive.ubuntu.com/ubuntu focal-backports InRelease [98.3 kB]                             
    Get:4 http://archive.ubuntu.com/ubuntu focal-security InRelease [107 kB]                               
    ##### snipped
    Get:85 http://archive.ubuntu.com/ubuntu focal-security/multiverse amd64 c-n-f Metadata [116 B]         
    Fetched 39.7 MB in 6s (3,288 kB/s)                                                                     
    
    Checking package manager
    Reading package lists... Done    
    Building dependency tree          
    Reading state information... Done
    
    Calculating the changes
    
    Calculating the changes
    
    Do you want to start the upgrade? 
    
    
    2 packages are going to be removed. 111 new packages are going to be 
    installed. 1232 packages are going to be upgraded. 
    
    You have to download a total of 951 M. This download will take about 
    4 minutes with your connection. 
  7. Press [y] and [ENTER] to accept and continue.
    Installing the upgrade can take several hours. Once the download has 
    finished, the process cannot be canceled. 
    
     Continue [yN]  Details [d]
  8. Press [ENTER] to continue .
    Lock screen disabled 
    
    Your lock screen has been disabled and will remain disabled until you 
    reboot. 
    
    To continue please press [ENTER]
    Inhibiting until Ctrl+C is pressed...
  9. Wait for the upgraded packages to finish downloading.
    Fetching
    Get:1 http://archive.ubuntu.com/ubuntu focal/main amd64 gcc-10-base amd64 10-20200411-0ubuntu1 [19.0 kB]
    Get:2 http://archive.ubuntu.com/ubuntu focal/main amd64 libgcc-s1 amd64 10-20200411-0ubuntu1 [41.6 kB] 
    Get:3 http://archive.ubuntu.com/ubuntu focal/main amd64 libcrypt1 amd64 1:4.4.10-10ubuntu4 [78.2 kB]   
    Get:4 http://archive.ubuntu.com/ubuntu focal/main amd64 libc6 amd64 2.31-0ubuntu9 [2,713 kB]           
    Get:5 http://archive.ubuntu.com/ubuntu focal/main amd64 libc-bin amd64 2.31-0ubuntu9 [636 kB]          
    Get:6 http://archive.ubuntu.com/ubuntu focal/main amd64 locales all 2.31-0ubuntu9 [3,870 kB]           
    Get:7 http://archive.ubuntu.com/ubuntu focal/main amd64 libc6-dbg amd64 2.31-0ubuntu9 [5,671 kB]       
    Get:8 http://archive.ubuntu.com/ubuntu focal/main amd64 libc-dev-bin amd64 2.31-0ubuntu9 [71.8 kB]     
    Get:9 http://archive.ubuntu.com/ubuntu focal/main amd64 libc6-dev amd64 2.31-0ubuntu9 [2,520 kB]       
    Get:10 http://archive.ubuntu.com/ubuntu focal/main amd64 libcrypt-dev amd64 1:4.4.10-10ubuntu4 [104 kB]
    Get:11 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 linux-libc-dev amd64 5.4.0-42.46 [1,109 kB]
  10. Wait for the upgraded packages to finish installing.
    Upgrading
    Fetched 0 B in 0s (0 B/s)                                                                              
      MarkInstall libc6:amd64 < 2.30-0ubuntu2.2 -> 2.31-0ubuntu9 @ii umU Ib > FU=1
      Installing libgcc-s1 as Depends of libc6
        MarkInstall libgcc-s1:amd64 < none -> 10-20200411-0ubuntu1 @un uN Ib > FU=0
        Installing gcc-10-base as Depends of libgcc-s1
          MarkInstall gcc-10-base:amd64 < none -> 10-20200411-0ubuntu1 @un uN > FU=0
      Installing libcrypt1 as Depends of libc6
        MarkInstall libcrypt1:amd64 < none -> 1:4.4.10-10ubuntu4 @un uN > FU=0
        MarkInstall locales:amd64 < 2.30-0ubuntu2.2 -> 2.31-0ubuntu9 @ii umU Ib > FU=0
        Installing libc-bin as Depends of locales
          MarkInstall libc-bin:amd64 < 2.30-0ubuntu2.2 -> 2.31-0ubuntu9 @ii umU > FU=0
    Starting pkgProblemResolver with broken count: 1
    Starting 2 pkgProblemResolver with broken count: 1
    Investigating (0) libc6-dev:amd64 < 2.30-0ubuntu2.2 -> 2.31-0ubuntu9 @ii umU Ib >
    Broken libc6-dev:amd64 Depends on libcrypt-dev:amd64 < none | 1:4.4.10-10ubuntu4 @un uH >
      Considering libcrypt-dev:amd64 1 as a solution to libc6-dev:amd64 11
      MarkKeep libc6-dev:amd64 < 2.30-0ubuntu2.2 -> 2.31-0ubuntu9 @ii umU Ib > FU=0
      Re-Instated libcrypt-dev:amd64
      Re-Instated libc6-dev:amd64
    Done
    
    Upgrading
    Fetched 0 B in 0s (0 B/s)                                                                              
    Preconfiguring packages ...
    Preconfiguring packages ...
    Preconfiguring packages ...
    Preconfiguring packages ...
    Selecting previously unselected package gcc-10-base:amd64.
    (Reading database ... 181113 files and directories currently installed.)
    Preparing to unpack .../gcc-10-base_10-20200411-0ubuntu1_amd64.deb ...
    Unpacking gcc-10-base:amd64 (10-20200411-0ubuntu1) ...
    Setting up gcc-10-base:amd64 (10-20200411-0ubuntu1) ...
    
    Progress: [  7%]
    Selecting previously unselected package libgcc-s1:amd64.
    (Reading database ... 181118 files and directories currently installed.)
    Preparing to unpack .../libgcc-s1_10-20200411-0ubuntu1_amd64.deb ...
    Unpacking libgcc-s1:amd64 (10-20200411-0ubuntu1) ...
    Replacing files in old package libgcc1:amd64 (1:9.2.1-9ubuntu2) ...
    ##### snipped
  11. Press [y] and [ENTER] to confirm removing of obsolete packages.
    Searching for obsolete software
    Reading state information... Done
    
    Remove obsolete packages? 
    
    
    71 packages are going to be removed. 
    
     Continue [yN]  Details [d]
  12. Press [y] and [ENTER] to reboot your system.
    System upgrade is complete.
    
    Restart required 
    
    To finish the upgrade, a restart is required. 
    If you select 'y' the system will be restarted. 
    
    Continue [yN]
  13. Login and start using your updated Ubuntu or Kubuntu version.

This guide is tested on Ubuntu:

Version Code Name
22.04 LTS Jammy Jellyfish
23.10 Mantic Minotaur
24.04 LTS Noble Numbat
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