The count command is now capable of counting threads in addition to
messages. This is selected using the new --output=(threads|messages) option.
+New emacs UI features
+---------------------
+
+Add tab-completion for notmuch-search and notmuch-search-filter
+
+ These functions now support completion tags for query parts
+ starting with "tag:".
+
+Turn "id:MSG-ID" links into buttons associated with notmuch searches
+
+ Text of the form "id:MSG-ID" in mails is now a clickable button that
+ opens a notmuch search for the given message id.
+
Performance
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