+JSON reply format
+
+ "notmuch reply" can now produce JSON output that contains the headers
+ for a reply message and full information about the original message
+ begin replied to. This allows MUAs to create replies intelligtently.
+ For example, an MUA that can parse HTML might quote HTML parts.
+
+ Calling notmuch reply with --format=json imposes the restriction that
+ only a single message is returned by the search, as replying to
+ multiple messages does not have a well-defined behavior. The default
+ retains its current behavior for multiple message replies.
+
+Tag exclusion
+
+ Tags can be automatically excluded from search results by adding them
+ to the new 'search.exclude_tags' option in the Notmuch config file.
+
+ This behaviour can be overridden by explicitly including an excluded
+ tag in your query, for example:
+
+ notmuch search $your_query and tag:$excluded_tag
+
+ Existing users will probably want to run "notmuch setup" again to add
+ the new well-commented [search] section to the configuration file.
+
+ For new configurations, accepting the default setting will cause the
+ tags "deleted" and "spam" to be excluded, equivalent to running:
+
+ 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
+---------------
+
+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
+
+ This makes it possible for long running programs to close the xapian
+ database and thus release the lock associated with it without
+ destroying the data structures obtained from it.
+
+notmuch_database_open and notmuch_database_create now return errors
+
+ The type signatures of notmuch_database_open and
+ notmuch_database_create have changed so that the functions now
+ return a notmuch_status_t and take an out-argument for returning the
+ new database object.
+
+go bindings changes
+-------------------
+
+Go 1 compatibility
+
+ The go bindings and the notmuch-addrlookup utility are now
+ compatible with go 1.
+
+Notmuch 0.12 (2012-03-20)
+=========================
+
+Command-Line Interface
+----------------------
+
+Reply to sender
+
+ `notmuch reply` has gained the ability to create a reply template
+ for replying just to the sender of the message, in addition to reply
+ to all. The feature is available through the new command line option
+ `--reply-to=(all|sender)`.
+