+ notmuch config set search.exclude_tags deleted spam
+
+Raw show format changes
+
+ The output of show `--format=raw` has changed for multipart and
+ message parts. Previously, the output was a mash of somewhat-parsed
+ headers and transfer-decoded bodies. Now, such parts are reproduced
+ faithfully from the original source. Message parts (which includes
+ part 0) output the full message, including the message headers (but
+ not the transfer headers). Multipart parts output the part as
+ encoded in the original message, including the part's headers. Leaf
+ parts, as before, output the part's transfer-decoded body.
+
+Listing configuration items
+
+ The new `config list` command prints out all configuration items and
+ their values.
+
+Emacs Interface
+---------------
+
+Changes to tagging interface
+
+ The user-facing tagging functions in the Emacs interface have been
+ normalized across all notmuch modes. The tagging functions are now
+ notmuch-search-tag in search-mode, and notmuch-show-tag in
+ show-mode. They accept a string representing a single tag change,
+ or a list of tag changes. See 'M-x describe-function notmuch-tag'
+ for more information.
+
+ NOTE: This breaks compatibility with old tagging functions, so user
+ may need to update in custom configurations.
+
+Reply improvement using the JSON format
+
+ Emacs now uses the JSON reply format to create replies. It obeys
+ the customization variables message-citation-line-format and
+ message-citation-line-function when creating the first line of the
+ reply body, and it will quote HTML parts if no text/plain parts are
+ available.
+
+New add-on tool: notmuch-mutt
+-----------------------------
+
+The new contrib/ tool `notmuch-mutt` provides Notmuch integration for
+the Mutt mail user agent. Using it, Mutt users can perform mail
+search, thread reconstruction, and mail tagging/untagging without
+leaving Mutt. notmuch-mutt, formerly distributed under the name
+`mutt-notmuch` by Stefano Zacchiroli, will be maintained as a notmuch
+contrib/ from now on.
+
+Library changes
+---------------
+
+The API changes detailed below break binary and source compatibility,
+so libnotmuch has been bumped to version 3.0.0.
+
+The function `notmuch_database_close` has been split into
+`notmuch_database_close` and `notmuch_database_destroy`