Notmuch 0.20 (UNRELEASED)
+=========================
+
+Command-Line Interface
+----------------------
+
+There is a new `mimetype:` search prefix
+
+ The new `mimetype:` search prefix allows searching for the
+ content-type of attachments, which is now indexed. See the
+ `notmuch-search-terms` manual page for details.
+
+Documentation
+-------------
+
+Support for using rst2man in place of sphinx to build the
+docmumentation has been removed.
Contrib
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