Steve Langasek has announced the availability of the sixth alpha release of Ubuntu 9.10 "Karmic Koala": "Welcome to Karmic Koala Alpha 6, which will in time become Ubuntu 9.10." New features in this alpha include Upstart and Ubuntu Software Store: "As part of our boot performance work, we have now transitioned to Upstart. If you are testing on your primary machine, we strongly suggest having an Ubuntu Karmic alpha 5 live CD available, or creating an Alpha 5 USB start-up disk before doing an upgrade. Ubuntu Karmic Alpha 6 includes the Ubuntu Software Store. It is temporarily located under System, with a plan to replace AddRemove in the Beta release."