I'm pleased to announce that Swift 1.9.0 has been released. This has been a great release with major features added, thanks to the combined effort of 37 different contributors.

Full release notes: https://github.com/openstack/swift/blob/master/CHANGELOG Download: https://launchpad.net/swift/havana/1.9.0

Feature Summary ===============

Full global clusters support ----------------------------

With this release, Swift fully supports global clusters. A single Swift cluster can now be deployed a wide geographic area (eg across an ocean or continent) and still provide high durability and availability. This feature has four major parts:

* Region tier for data placement * Adjustable replica counts * Separate replication network support * Affinity on reads and writes

Improvements in disk performance --------------------------------

The object server can now be configured to use threadpools to increase performance and smooth out latency on storage nodes. Also, many disk operations were reordered to increase reliablility and improve performance. This work is a direct result of the design summit sessions in Portland.

Support for config directories ------------------------------

Swift now supports conf.d style config directories. This allows config snippets to be managed independently and composed into the full config for a Swift process. For example, a deployer can have a config snippet for each piece of proxy middleware.

Multiple TempURL keys ---------------------

The TempURL feature (temporary, signed URLs) now supports two signing keys. This allows users to safely rotate keys without invalidating existing signed URLs.

Other -----

There's a ton of "other" stuff in this release including features, security fixes, general polishing, and bug fixes. I encourage you to check out the full release notes for more info (https://github.com/openstack/swift/blob/master/CHANGELOG).

New Contributors ================

Twelve of the 37 total contributors are first-time contributors to Swift. They are:

* Fabien Boucher (fabien.boucher@enovance.com) * Brian D. Burns (iosctr@gmail.com) * Alex Gaynor (alex.gaynor@gmail.com) * Edward Hope-Morley (opentastic@gmail.com) * Matthieu Huin (mhu@enovance.com) * Shri Javadekar (shrinand@maginatics.com) * Sergey Kraynev (skraynev@mirantis.com) * Dieter Plaetinck (dieter@vimeo.com) * Chuck Short (chuck.short@canonical.com) * Dmitry Ukov (dukov@mirantis.com) * Vladimir Vechkanov (vvechkanov@mirantis.com) * niu-zglinux (Niu.ZGlinux@gmail.com)

Thank you to everyone who contributed.

--John