Cyrus IMAP 3.1.6 Tag Notes
**************************

Unavailable for download as this is a development branch only.

Access is via git.

Warning:

  This should be considered for **testing purposes** and **bleeding-
  edge features** only. We will try to tag these snapshots at coherent
  development points, but there will generally be **large breaking
  changes** occurring between releases in this series.


Major changes since the 3.0.x series
====================================

* Sieve bug fixes and features.

* Caldav and Carddav improvements.

* JMAP improvements.

* Xapian bug fixes.

* Improvements to Annotations handling.

* DRAC support has been deprecated.

* Support for Prometheus stats.

* Support for the Sphinx backend to squatter searches has been
  removed.

* new cyrus.index format v16 included in 3.1.5 - adds unseen count and
  createdmodseq to index header, savedate and createdmodseq to index
  records

* Support for WebSockets

* Support for HTTP/2.0

* Support for Zeroskip database format

* Intermediate mailboxes are now recorded in mailboxes database

* Conversations database format update - adds flags and internaldate
  fields, and is now versioned for future-compatibility.  You will
  need to rebuild your conversations databases with
  ctl_conversationsdb(8) and the *-b* switch to benefit from this.


Updates to default configuration
================================

* The *specialusealways* option is now enabled by default. It must
  explicitly be disabled for interoperability with legacy clients that
  can't handle RFC 6154 attributes in extended LIST commands.

* The values accepted by *expunge_mode* have changed, please see the
  documentation for more information about the changes.

* The legacy GETANNOTATIONS/SETANNOTATIONS IMAP commands will no
  longer work unless *annotation_enable_legacy_commands* is enabled


Security fixes
==============

* Contains fix for CVE-2017-14230. [ http://cve.mitre.org/cgi-
  bin/cvename.cgi?name=CVE-2017-14230 ]


Significant bugfixes
====================
