These release notes for Ubuntu 16.04.1 LTS (Xenial Xerus) provide an overview of the release and document the known issues with Ubuntu 16.04 LTS and its flavours. For details of the changes applied since 16.04, please see the 16.04.1 change summary. The release notes for 16.04 are available as well.
Ubuntu 16.04.1 LTS will be supported for 5 years for Ubuntu Desktop, Ubuntu Server, Ubuntu Core, and Ubuntu Kylin. All other flavours will be supported for 3 years.
Official flavour release notes
Find the links to release notes for official flavours here.
Download Ubuntu 16.04.1 LTS
Images can be downloaded from a location near you.
You can download images from:
http://releases.ubuntu.com/16.04.1/ (Ubuntu Desktop and Server)
http://cdimage.ubuntu.com/ubuntu/releases/16.04.1/release/ (Less Popular Ubuntu Images)
https://cloud-images.ubuntu.com/releases/16.04.1/release/ (Ubuntu Cloud)
http://cdimage.ubuntu.com/netboot/16.04.1/ (Ubuntu Netboot)
http://cdimage.ubuntu.com/ubuntustudio/releases/16.04.1/release/ (Ubuntu Studio)
Upgrading from Ubuntu 14.04 LTS or 15.10
To upgrade on a desktop system:
To upgrade on a server system:
Note that the server upgrade will use GNU screen and automatically re-attach in case of dropped connection problems.
There are no offline upgrade options for Ubuntu Desktop and Ubuntu Server. Please ensure you have network connectivity to one of the official mirrors or to a locally accessible mirror and follow the instructions above.
Snap application format
Ubuntu 16.04 LTS introduces a new application format, the ‘snap’, which can be installed alongside traditional deb packages. These two packaging formats live quite comfortably next to one another and enable Ubuntu to maintain its existing processes for development and updates. More information is available here.
As with every new release, packages–applications and software of all kinds–are being updated at a rapid pace. Many of these packages came from an automatic sync from Debian’s unstable branch; others have been explicitly pulled in for Ubuntu 16.04.
For a list of all packages being accepted for Ubuntu 16.04, please subscribe to xenial-changes.
Linux kernel 4.4
Ubuntu 16.04 LTS is based on the long-term supported Linux release series 4.4.
Your comments, bug reports, patches and suggestions will help fix bugs and improve the quality of future releases. Please report bugs using the tools provided.
If you want to help out with bugs, the Bug Squad is always looking for help.
Participate in Ubuntu
If you would like to help shape Ubuntu, take a look at the list of ways you can participate at
More about Ubuntu
You can find out more about Ubuntu on the Ubuntu website and Ubuntu wiki.
To sign up for future Ubuntu development announcements, please subscribe to Ubuntu’s development announcement list at: