OpenStack consists of a number services for running IaaS clouds. This includes Object Store (Swift), Compute (Nova) and Image (Glance) services, among others.
- Fedora 16 includes OpenStack Diablo
- Fedora 17 includes OpenStack Essex
- Fedora 18 includes OpenStack Folsom
- Fedora 19 includes OpenStack Grizzly
OpenStack has a preview repository, allowing Fedora N-1 users to try out OpenStack packages from the latest Fedora release etc. This is similar to the Virtualization Preview Repository.
Preview packages, may be installed from the side repository using yum after downloading the appropriate .repo file to /etc/yum.repos.d
Fedora OpenStack test days are very useful both to test new packages and as a quick way to get up to speed on the various OpenStack components.
You can query all Fedora OpenStack packages and drill down there to builds, bugs, source, etc.
Also users can build their own cloud images using Oz.
OpenStack Official Documentation
OpenStack in EPEL
The OpenStack in EPEL 6 is Folsom, supporting RHEL 6.3. See the Getting started with OpenStack EPEL for installation and setup notes
You can drill down to the latest "el6" version of each of the openstack packages to see, the latest versions available and associated changes.