Command-Line Interface
----------------------
+Decrypting commands explicitly expect a gpg-agent
+
+ Decryption in `notmuch show` and `notmuch reply` has only ever
+ worked with a functioning gpg-agent. This is now made explicit in
+ code and documentation. The functional change is that it's now
+ possible to have gpg-agent running, but gpg "use-agent"
+ configuration option disabled, not forcing the user to use the agent
+ everywhere.
+
+`notmuch count --batch` option
+
+ `notmuch count` now supports batch operations similar to `notmuch
+ tag`. This is mostly an optimization for remote notmuch usage.
+
+Configuration file saves follow symbolic links
+
+ The notmuch commands that save the configuration file now follow
+ symbolic links instead of overwrite them.
+
+`notmuch tag` option to remove all tags from matching messages
+
+ `notmuch tag --remove-all` option has been added to remove all tags
+ from matching messages. This can be combined with adding new tags,
+ resulting in setting (rather than modifying) the tags of the
+ messages.
+
+Top level option to specify configuration file
+
+ It's now possible to specify the configuration file to use on the
+ command line using the `notmuch --config=FILE` option.
+
+Top level option to redirect writes to stderr
+
+ With `notmuch --stderr=FILE` all writes to stderr are redirected to
+ the specified file. If FILE is '-', stderr is redirected to stdout.
+
Deprecated commands "part" and "search-tags" are removed.
Bash command-line completion
Emacs Interface
---------------
+New keymap to view/save parts
+
+ To view or save a single MIME part of a message, use the new "."
+ submap (e.g., ". s" to save, ". v" to view). Previously, these keys
+ were only available when point was on a part button and they did not
+ have the "." prefix, so they were difficult to invoke (impossible if
+ a part did not have a button) and clashed with other bindings.
+ These new bindings also appear in show's help, so you don't have to
+ memorize them.
+
+Default part save directory is now `mm-default-directory`
+
+ Previously, notmuch offered to save parts and attachments to a mix
+ of `mm-default-directory`, `mailcap-download-directory`, and `~/`.
+ This has been standardized on `mm-default-directory`.
+
+Better handling of errors in search buffers
+
+ Instead of interleaving errors in search result buffers, search mode
+ now reports errors in the minibuffer.
+
+Faster search results
+
+ Communication between search mode and the notmuch CLI is now more
+ efficient because it uses the CLI's S-expression support. As a
+ result, search mode should now fill search buffers faster.
+
No Emacs 22 support
The Emacs 22 support added late 2010 was sufficient only for a short