ReleaseNotes

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=== Linux kernel === === OpenSSL 1.1.1 ===

OpenSSL, the secure 🔒 communication library using TLS protocol, is upgraded to 1.1.1 long-term support series. It supports for the recently approved TLSv1.3 standard. Multiple client and server applications have been enabled to use TLSv1.3 by default in Ubuntu 18.10 with many more to come in the next release. The older 1.0.2 series OpenSSL is still available, however, it is expected to be removed from the next Ubuntu release.

The Ubuntu project is currently evaluating replacing OpenSSL 1.1.0 with backported OpenSSL 1.1.1 in Ubuntu 18.04 LTS. 🤞

=== Linux kernel 🐧 ===

Introduction

These release notes for Ubuntu 18.10 (Cosmic Cuttlefish) provide an overview of the release and document the known issues with Ubuntu 18.10 and its flavours.

Support lifespan

Ubuntu 18.10 will be supported for 9 months until July 2019. If you need Long Term Support, it is recommended you use Ubuntu 18.04 LTS instead.

Official flavour release notes

Find the links to release notes for official flavors here.


Get Ubuntu 18.10

Download Ubuntu 18.10

Images can be downloaded from a location near you.

You can download ISOs and flashable images from:

As fixes will be included in new images between now and release, any daily cloud image from today or later (i.e. a serial of 2018nnnn or higher) should be considered a beta image. Bugs found should be filed against the appropriate packages or, failing that, the cloud-images project in Launchpad.

Upgrading from Ubuntu 18.04

Upgrades on i386

Users of the i386 architecture will not be allowed to upgrade to Ubuntu 18.10 as dropping support for that architecture is being evaluated and users of it should not be stranded on a release with a shorter support window than the release they are already running.


New features in 18.10

Updated Packages

OpenSSL 1.1.1

OpenSSL, the secure 🔒 communication library using TLS protocol, is upgraded to 1.1.1 long-term support series. It supports for the recently approved TLSv1.3 standard. Multiple client and server applications have been enabled to use TLSv1.3 by default in Ubuntu 18.10 with many more to come in the next release. The older 1.0.2 series OpenSSL is still available, however, it is expected to be removed from the next Ubuntu release.

The Ubuntu project is currently evaluating replacing OpenSSL 1.1.0 with backported OpenSSL 1.1.1 in Ubuntu 18.04 LTS. 🤞

Linux kernel 🐧

Ubuntu 18.10 is based on the Linux release series 4.18. It includes support for AMD Radeon RX Vega M graphics processor, complete support for the Raspberry Pi 3B and the 3B+, Qualcomm Snapdragon 845, many USB 3.2 and Type-C improvements, Intel Cannonlake graphics, significant power-savings improvements, P-State driver support for Skylake X servers, POWER memory protection keys support, KVM support for AMD Secure Encrypted Virtualization, enablement of Shared Memory Communications remote and direct (SMC-R/D), Open for Business (OFB), and zcrypt on IBM Z among with many other improvements since the v4.15 kernel shipped in 18.04 LTS.

Ubuntu Desktop

Ubuntu Server

Known issues

As is to be expected, with any release, there are some significant known bugs that users may run into with this release of Ubuntu 18.10. The ones we know about at this point (and some of the workarounds), are documented here so you don't need to spend time reporting these bugs again:

Desktop

  • Booting live images in order to install Ubuntu in VirtualBox can, for some flavours, and on some versions of VirtualBox fail to boot in to the live session. The workaround for this is to enable "nomodeset" via the initial boot menu. Hit a key when you see the icons at the bottom of the screen, press f6 in the menu and toggle nomodeset on. Then select "Try Ubuntu without installing". Bug 1792932


Official flavours

The release notes for the official flavours can be found at the following links:


More information

Reporting bugs

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:

CosmicCuttlefish/ReleaseNotes (last edited 2019-10-29 21:29:55 by bryanquigley)