Upgrading an existing Ubuntu

Follow the steps in my guide Installing Ubuntu along side Windows (i.e. dual boot) or Installing Ubuntu on a new device (i.e. single boot) up to the 'Installation type' screen:

On that screen this time select 'Upgrade' and continue by clicking 'Install Now'.

A release upgrade can also be performed through the command line. ZDNet have written a short article which summarises the steps involved.

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