+General (Xapian 1.4+)
+---------------------
+
+Compiling against Xapian 1.4 enables several new features.
+
+Support for single argument date: queries
+
+ `date:<expr>` is equivalent to `date:<expr>..<expr>`.
+
+Support for blocking opens
+
+ When opening a database notmuch by default will wait for another
+ process to release a write lock, rather than returning an error.
+
+Support for named queries
+
+ Named queries (also known as 'saved searches') can be defined with a
+ `query:name` format. The expansion of these queries is stored in the
+ database and they can be used from any notmuch client.
+
+Library
+-------
+
+Bug fix for `notmuch_directory_set_mtime`
+
+ Update cached mtime to match on-disk mtime.
+
+CLI
+---
+
+Support for compile time options
+
+ A group of `built_with` keys is now supported for notmuch
+ config. Initial keys in this group are `compact`, `field_processor`,
+ and `retry_lock`.
+
+Dump/Restore support for configuration information
+
+ Any configuration information stored in the database (initially just
+ named queries) is dumped and restored. Any new information in the
+ dump format is prefixed by '#' to allow existing scripts to ignore
+ it.
+
+Refactor notmuch-reply, make handling of duplicate headers consistent
+
+Emacs
+-----
+
+Face customization is easier
+
+ New faces `notmuch-tag-unread`, `notmuch-tag-flagged`,
+ `notmuch-tag-deleted`, `notmuch-tag-added`,
+ `notmuch-search-flagged-face` and `notmuch-search-unread-face` are
+ now used by default. Customize `notmuch-faces` to modify them.
+
+Omit User-Agent header by default when sending mail
+