+ * Added: Sabre_DAV_PartialUpdate. This addon allows you to use the
+ PATCH method to update parts of a file.
+ * Added: Tons of timezone name mappings for Microsoft Exchange.
+ * Added: Support for an 'exception' event.
+ * Fixed: Uploaded VCards without a UID are now rejected. (thanks Dominik!)
+ * Fixed: Rejecting calendar objects if they are not in the
+ supported-calendar-component list. (thanks Armin!)
+ * Fixed: Issue 219: serialize() now reorders correctly.
+ * Fixed: Sabre_DAV_XMLUtil no longer returns empty $dom->childNodes
+ if there is whitespace in $dom.
+
+1.6.5-stable (2012-??-??)
+ * Fixed: Workaround for line-ending bug OS X 10.8 addressbook has.
+
+1.6.4-stable (2012-08-02)
+ * Fixed: Issue 220: Calendar-query filters may fail when filtering on
+ alarms, if an overridden event has it's alarm removed.
+ * Fixed: Compatibility for OS/X 10.8 iCal in the IMipHandler.
+ * Fixed: Issue 222: beforeWriteContent shouldn't be called for lock
+ requests.
+ * Fixed: Problem with POST requests to the outbox if mailto: was not lower
+ cased.
+ * Fixed: Yearly recurrence rule expansion on leap-days no behaves
+ correctly.
+ * Fixed: Correctly checking if recurring, all-day events with no dtstart
+ fall in a timerange if the start of the time-range exceeds the start of
+ the instance of an event, but not the end.
+ * Fixed: All-day recurring events wouldn't match if an occurence ended
+ exactly on the start of a time-range.
+ * Fixed: HTTP basic auth did not correctly deal with passwords containing
+ colons on some servers.
+ * Fixed: Issue 228: DTEND is now non-inclusive for all-day events in the
+ calendar-query REPORT and free-busy calculations.
+
+1.6.3-stable (2012-06-12)