0.4 is a new feature release including:

• Support for CalDAV free-busy report and a new freebusy ticket privilege
• Full Depth support for WebDAV
• Startup time repository initialization

Find download information, installation instructions and release notes at http://cosmo.osafoundation.org/.

0.3 is a new feature release including:

• A web-based tool for browsing the contents of the Cosmo repository
• Atom-based calendar feeds
• Support for the CalDAV calendar-query and multiget reports

Find download information, installation instructions and release notes at http://cosmo.osafoundation.org.

What you might not know is that the server where Foxmarks stores your bookmarks is an instance of Cosmo 0.2. This is the first production deployment of Cosmo (that we’re aware of), and we’re pretty excited that it’s holding up.

Granted, Foxmarks doesn’t stress the server anywhere near as much as a calendar shared by Cosmo, but this real world usage has been a huge help in identifying issues related to security, performance, scalability and data migration that we otherwise wouldn’t have had to cope with this early in development.

In fact, we’ve successfully tested Foxmarks and Cosmo with many tens of thousands of users, so I hope to see Foxmarks’ popularity continue to rise. We’ll do our best to keep the server running well and minimize breakage and downtime as we move to subsequent Cosmo releases.

0.2.8 fixes a critical issue where the performance of account signup degraded exponentially as accounts were created in the server.

Find download instructions, documentation, and the complete list of resolved issues at the Cosmo home page at http://wiki.osafoundation.org/bin/view/Projects/CosmoHome.

As always, see RELEASE-NOTES.txt in the distribution for upgrade notes.

0.2.7 fixes two critical data consistency issues:

• PUTs aborted partway through the process caused Cosmo to store the partial file and return a success response rather than failing as expected [5078]
• Simultaneous signup operations could fail, resulting in broken accounts without home directories in the repository [5095]

Find download instructions, documentation, and the complete list of resolved issues at the Cosmo home page at http://wiki.osafoundation.org/bin/view/Projects/CosmoHome.

As always, see RELEASE-NOTES.txt in the distribution for upgrade notes.

0.2.6 is a bugfix release focused on scalability, security and minor UI enhancements.

Find download instructions, documentation, and the list of resolved issues at the Cosmo home page at http://wiki.osafoundation.org/bin/view/Projects/CosmoHome.

As always, see RELEASE-NOTES.txt in the distribution for upgrade notes.

0.2.5 fixes a major memory leak and a few other bugs, and it includes a few enhancements:

• user account’s email address and first and last names may now be up to 128 bytes long
• new CMP operations that allow an authenticated user to read and write his own account info
• all CMP PUT requests return ETags
• all CMP PUT requests return specific status codes for “email in use” and “username in use” errors

Find download instructions, documentation, and the list of resolved issues at the Cosmo home page at http://wiki.osafoundation.org/bin/view/Projects/CosmoHome.

As always, see RELEASE-NOTES.txt in the distribution for upgrade notes.

0.2.4 is a bugfix release focusing on stability and scalability. It also includes a few new operations-oriented features:

• control over startup features via environment variables
• a simple server status page
• a CMP operation allowing anonymous users to sign up for Cosmo accounts without presenting admin credentials

As of 0.2.4, Cosmo now requires Java 5.0 (sometimes called 1.5).

Find download instructions, documentation, and the list of resolved issues at the Cosmo home page at http://wiki.osafoundation.org/bin/view/Projects/CosmoHome.

As always, see RELEASE-NOTES.txt in the distribution for upgrade notes.

0.2.3 is a bugfix release focusing on stability and scalability. The most notable change is the usage of Apache Derby (http://db.apache.org/derby/) for repository storage.

Find download instructions, documentation, and the list of resolved issues at the Cosmo home page at http://wiki.osafoundation.org/bin/view/Projects/CosmoHome. See RELEASE-NOTES.txt in the distribution for upgrade notes.

0.2.2 is a bugfix release focusing on stability and scalability.

Find download instructions, documentation, and the list of resolved issues at the Cosmo home page at http://wiki.osafoundation.org/bin/view/Projects/CosmoHome. See RELEASE-NOTES.txt in the distribution for upgrade notes.