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I want to upgrade to Bionic Beaver from 17.10, but the Software Updater says everything is up to date.

I followed this but at the step the upgrade button should pop in Software Updater it still says everything is up to date. I did change the settings to notify me for "Any new version".

What else could be wrong?

marked as duplicate by karel, Eliah Kagan, Zanna, muru, N0rbert Apr 27 '18 at 7:48

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Please try this:

sudo update-manager -d
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    Actually Ubuntu 18.04 is not yet available for upgrade. It says so right on their download page. You can only get it via clean install for now. Upgrade will be available later next month. – or29544 Apr 29 '18 at 9:06
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    luckily for me it is next next and almost next month :) – ses Jun 24 '18 at 16:21
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The easiest way to upgrade Ubuntu to the next release is via sudo do-release-upgrade. But to be safe and avoid possible errors after the upgrade, make sure that your current release is up to date first:

sudo apt update && sudo apt dist-upgrade

You'll probably want to sudo apt autoremove useless packages too.

Finally make sure you have update-manager-core and start the upgrade:

sudo apt install update-manager-core && sudo do-release-upgrade -d
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    sudo do-release-upgrade gave me No new release found. – Freguglia Apr 27 '18 at 1:21

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