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There are many questions with answers on Ask Ubuntu about upgrading, for example, from 14.04 to 16.04. (Between LTS versions.) I recently heard that 16.04.1 has been released.

Do I have to do anything more than sudo apt-get update && sudo apt-get upgrade to update my system to 16.04.1?

A simple question which requires little explanation! Hopefully also a simple answer?

Note: I have 16.04 currently!

Note: The linked question does not explain how to upgrade from 16.04 to 16.04.1. (For example.) However it does cover upgrading from 14.04 to 16.04. (For example.) Is the method the same? (The answer posted below and in the comments suggests no.)

user3728501
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    Before you do anything else, you should backup your current system. – Alcuin Arundel Jul 31 '16 at 00:08
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    It's only got steam on it I wouldn't worry – user3728501 Jul 31 '16 at 00:26
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    I don't think this answers the specific case of sub releases? (16.04 -> 16.04.1) – user3728501 Jul 31 '16 at 01:29
  • Ubuntu will prompt you whenever it thinks it is appropriate to update. Will most likely show up soon. – Thorbjørn Ravn Andersen Jul 31 '16 at 06:31
  • No. The commands you state in your question will bring you up to date for point releases. – Elder Geek Jul 31 '16 at 21:40
  • @ElderGeek What commands should I have run? – user3728501 Jul 31 '16 at 23:00
  • sudo apt-get update && sudo apt-get upgrade as you stated in your question.... – Elder Geek Aug 01 '16 at 12:39
  • @ElderGeek Thanks - sorry I interpreted what you said as "No" - as I wasn't sure what a "point release" was. I assume it means A release such as 16.04.1? In which case why do ubuntu bother releasing a new iso image 16.04.1? Is it just to save everyone from updating their systems in future? – user3728501 Aug 01 '16 at 13:56
  • Consider how helpful having a new ISO could be to someone setting up a new system without the ability to connect to the Internet to pull down all the updates. You are correct in that a point release has a number after the second point such as 12.04.5 14.04.2 or in this case 16.04.1 – Elder Geek Aug 01 '16 at 16:35
  • @ElderGeek I guess it would be convenient - and useful if those contained major security updates, for example. – user3728501 Aug 01 '16 at 16:47

2 Answers2

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To upgrade from 16.04 to 16.04.1:

sudo apt update && sudo apt upgrade

To upgrade from 14.04.x to 16.04.1:

Step 1: Back up your current system. "Dirty" upgrades from one release to another don't always go as planned, so you should make sure that you've backed up any data you don't want to lose.

Step 2: Update your current system with sudo apt update && sudo apt full-upgrade.

Step 3: Make sure you have the update-manager-core package installed: sudo apt install update-manager-core

Step 4: Upgrade to the current release: sudo do-release-upgrade

Source

All that being said, I would recommend a "clean" install of 16.04.1 instead, especially since the transition from 14.04 to 16.04 involves going from SysVInit to systemd.

Alcuin Arundel
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One part of your question wasn't addressed: "Do I have to upgrade my system?"

No, you do not. 14.04 will be supported until April 2019.

There are many reasons to upgrade, but you do not have to.

Organic Marble
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