Ceph blog stories provide high-level spotlights on our customers all over the world
This is the fifth major release of Ceph, the fourth since adopting a 3-month development cycle. This release brings several new features, including multi-datacenter replication for the radosgw, improved usability, and lands a lot of incremental performance and internal refactoring work to support upcoming features in Firefly.
Coincident with core Ceph, the Emperor release also brings:
There are no specific upgrade restrictions on the order or sequence of upgrading from 0.67.x Dumpling. We normally suggest a rolling upgrade of monitors first, and then OSDs, followed by the radosgw and ceph-mds daemons (if any).
It is also possible to do a rolling upgrade from 0.61.x Cuttlefish, but there are ordering restrictions. (This is the same set of restrictions for Cuttlefish to Dumpling.)
There are several minor compatibility changes in the librados API that direct users of librados should be aware of. For a full summary of those changes, please see the complete release notes.
The next major release of Ceph, Firefly, is scheduled for release in February of 2014.
You can download v0.72 Emperor from the usual locations: