Snapcraft 2.9

Hello snapcrafters!

We are pleased to announce the release of version 2.9 of snapcraft: https://launchpad.net/snapcraft/+milestone/2.9
This is the first release since Xenial Xerus 16.04 has been released.

- A `confinement` property which indicates if the snap should be installed with devmode to function (for snaps still under development but worth sharing out) or strictly confined.
- Implemented support for upcoming epoch feature that will enable snaps to perform stepped upgrades through critical revisions.
- Bash completion for snapcraft commands.

With this release and a point release for 2.8 there have been many polishing bug fixes. Polish is one of the main focuses for snapcraft now. Please refer to the changelogs to read about these "micro" improvements.

To consume the latest snapcraft release on Xenial Xerus (16.04), we suggest you install the snapcraft package from the Ubuntu Archives:

    sudo apt update
    sudo apt install snapcraft

If you don't want to use the examples from the source branch you can also install the examples package:

    sudo apt install snapcraft-examples

After installing this you can find them in /usr/share/doc/snapcraft-examples/examples.

To get the source for this release check it out at https://github.com/ubuntu-core/snapcraft/releases/tag/2.9

A great place to collaborate and discuss features, bugs and ideas on snapcraft is snapcraft@lists.ubuntu.com mailing list or directly in the #snappy channel on irc.freenode.net.

To file bugs, please go to https://bugs.launchpad.net/snapcraft/+filebug.

Happy snapcrafting,
- Sergio and the team