cyrus-imapd-2.4.17-caldav-beta10 released

[Ken Murchison]

We are pleased to announce the tenth beta release of Cyrus IMAP with 
integrated calendaring and contacts.  This release contains mostly small 
CalDAV fixes/enhancements, but does include the following noteworthy 
changes:

- DAV DB changes now occur in the mailbox API which means
   that replication works for calendars and addressbooks.
- IMAP XFER is now based on replication.
- Added support for free/busy query URL to CalDAV.
- Authentication for GET/HEAD requests is now done on-demand so that
   free/busy queries and/or calendar subscriptions can be done
   anonymously (subject to ACL).
- Added support for VAVAILABILITY, VPOLL, RSCALE to CalDAV based on
   current drafts (requires libical from git).
- Updated http_timezone.c to be compliant with current draft.


Many thanks go out to Fastmail for contributing the DAV DB changes and 
other fixes back to CyrusIMAP.org.  The CalDAV code in this release 
forms the core of what Fastmail is now running in production.

This code is based on the stable Cyrus 2.4.17 release with support for 
HTTP-based services (CalDAV, CardDAV, RSS, and Timezone) added.  All of 
the standard Cyrus IMAP daemons and utilities should be considered 
production quality in this release, but the HTTP support is in late beta 
status.

You can download via HTTP or FTP:

http://cyrusimap.org/releases/cyrus-imapd-2.4.17-caldav-beta10.tar.gz
ftp://ftp.cyrusimap.org/cyrus-imapd/cyrus-imapd-2.4.17-caldav-beta10.tar.gz

Installation documentation will be found in doc/install-http.html in the 
distribution.

Upgrade documentation will be found in doc/install-upgrade.html in the 
distribution.

Thanks for your continued support, and we look forward to any and all 
feedback.

-- 
Kenneth Murchison
Principal Systems Software Engineer
Carnegie Mellon University