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A core principle of the App Container (appc) specification is that it is open: multiple implementations of the spec should exist and be developed independently. Even though the spec is young and pre-1.0, it has already seen a number of implementations.

Today we're announcing the next release of Rocket and the App Container (appc) spec, v0.3.1.

rkt Updates

This release of rkt includes new user-facing features and some important changes under the hood which further make progress towards our goals of security and composability.

First, the rkt CLI has a couple of new commands:

We’ve just come from FOSDEM ‘15 in Belgium and have an exciting rest of the month planned. We’ll be in Europe and the United States in February, and you can even catch Alex Polvi, CEO of CoreOS, keynoting at two events – TurboFest West (February 13) and Linux Collab Summit (February 18). Read more to see where we’ll be and meet us.

Also, thank you to all that hosted and attended our events last month. Questions or comments, contact us at press@coreos.com or tweet to us @CoreOS.

Today etcd hit v2.0.0, our first major stable release.

The glibc vulnerability, CVE-2015-0235, known as “GHOST”, has been patched on CoreOS. If automatic updates are enabled (default configuration), your server should already be patched.

If automatic updates are disabled, you can force an update by running update_engine_client -check_for_update.

This week both rkt and the App Container (appc) spec have reached 0.2.0. Since our launch of the projects in December, both have been moving very quickly with a healthy community emerging. rkt now has cryptographic signing by default and a community is emerging around independent implementations of the appc spec. Read on for details on the updates.

CoreOS CTO Brandon Philips speaking at Linux Conf AU
January has been packed with meetups and events across the globe.

Today we round up our newest features and shine a spotlight on them. Since joining the CoreOS team, we have been working hard on features to improve the Quay.io experience. Highlights include squashed images (an experimental feature) for faster downloading, added build features for more control with build automation tools, and improved notification features for better communications within teams.

etcd 2.0

We are pleased to announce the first release candidate

Last week we announced an initial version of the "App Container Spec", a proposed standard for building and running application containers, along with a prototype implementation called Rocket.

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