Projects / Cosmo


Cosmo is the OSAF calendar sharing server. With your favorite calendar program (Chandler, Apple iCal, Mozilla Sunbird, or any other WebDAV or CalDAV enabled client), you can share your calendar with other people by publishing it to Cosmo. Your shared calendars can be subscribed to and updated by anyone, even if they don't have an account on your server. Cosmo provides Atom feeds for shared calendars, so you can track updates in your favorite feed reader and integrate your calendar into your Web site or blog.

Operating Systems

Recent releases

  •  12 Sep 2008 12:59

    Release Notes: Users can now delete their own accounts using the Web UI. CTAG (a draft CalDAV standard) support is available. A few rendering and logic bugs have been fixed.

    •  31 Jul 2008 20:31

      Release Notes: This release contains bugfixes, stability improvements, and general polish.

      •  02 Jul 2008 10:46

        Release Notes: This release introduces a new item detail view designed to drastically improve item editing workflows. It integrates a larger, expandable notes field, date pickers for appropriate fields, and a cleaner design. Other significant changes in the Web UI include cleaner add/remove affordances and numerous minor usability and display tweaks. Sharing capabilities with Apple's iCal client have been enhanced. In addition, enhanced ETag and If-None-Match header support provide significant optimization opportunities for webcal clients.

        •  21 May 2008 23:21

          Release Notes: This release fixes a CalDAV bug introduced in 0.15.0 that was causing certain CalDAV requests to fail with a 500 server error code.

          •  19 May 2008 20:24

            Release Notes: This release introduces a new sharing dialog in the Chandler Server Web UI that greatly simplifies many common sharing and subscription workflows. It also fixes many server and client bugs, which improves interoperability and reliability.


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