+Notmuch 0.18 (UNRELEASED)
+=========================
+
+Command-Line Interface
+----------------------
+
+`notmuch dump` now defaults to `batch-tag` format
+
+ The old format is still available with `--format=sup`.
+
+`notmuch new` has a --quiet option
+
+ This option suppresses the progress and summary reports.
+
+Emacs Interface
+---------------
+
+Init file
+
+ If the file pointed by new variable `notmuch-init-file` (typically
+ `~/.emacs.d/notmuch-config.el`) exists, it is loaded at the end of
+ `notmuch.el`. Users can put their personal notmuch emacs lisp based
+ configuration/customization items there instead of filling
+ `~/.emacs` with these.
+
+Changed format for saved searches
+
+ The format for `notmuch-saved-searches` has changed, but old style
+ saved searches are still supported. The new style means that a saved
+ search can store the desired sort order for the search, and it can
+ store a separate query to use for generating the count notmuch
+ shows.
+
+ The variable is fully customizable and any configuration done
+ through customize should *just work*, with the additional options
+ mentioned above. For manual customization see the documentation for
+ `notmuch-saved-searches`.
+
+ IMPORTANT: a new style notmuch-saved-searches variable will break
+ previous versions of notmuch-emacs (even search will not work); to
+ fix remove the customization for notmuch-saved-searches.
+
+ If you have a custom saved search sort function (not unsorted or
+ alphabetical) then the sort function will need to be
+ modified. Replacing (car saved-search) by (notmuch-saved-search-get
+ saved-search :name) and (cdr saved-search) by
+ (notmuch-saved-search-get saved-search :query) should be sufficient.
+
+The keys of `notmuch-tag-formats` are now regexps
+
+ Previously, the keys were literal strings. Customized settings of
+ `notmuch-tag-formats` will continue to work as before unless tags
+ contain regexp special characters like `.` or `*`.
+
+Changed tags are now shown in the buffer
+
+ Previously tag changes made in a buffer were shown immediately. In
+ some cases (particularly automatic tag changes like marking read)
+ this made it hard to see what had happened (e.g., whether the
+ message had been unread).
+
+ The changes are now shown explicitly in the buffer: by default
+ deleted tags are displayed with red strike-through and added tags
+ are displayed underlined in green (inverse video is used for deleted
+ tags if the terminal does not support strike-through).
+
+ The variables `notmuch-tag-deleted-formats` and
+ `notmuch-tag-added-formats`, which have the same syntax as
+ `notmuch-tag-formats`, allow this to be customized.
+
+ Setting `notmuch-tag-deleted-formats` to `'((".*" nil))` and
+ `notmuch-tag-added-formats` to `'((".*" tag))` will give the old
+ behavior of hiding deleted tags and showing added tags identically
+ to tags already present.
+
+Version variable
+
+ The new, build-time generated variable `notmuch-emacs-version` is used
+ to distinguish between notmuch cli and notmuch emacs versions.
+ The function `notmuch-hello-versions` (bound to 'v' in notmuch-hello
+ window) prints both notmuch cli and notmuch emacs versions in case
+ these differ from each other.
+ This is especially useful when using notmuch remotely.
+
+Bug fix for saved searches with newlines in them
+
+ Split lines confuse `notmuch count --batch`, so we remove embedded
+ newlines before calling notmuch count.
+
+Bug fixes for sender identities
+
+ Previously, Emacs would rewrite some sender identities in unexpected
+ and undesirable ways. Now it will use identities exactly as
+ configured in `notmuch-identities`.
+
+nmbug
+-----
+
+nmbug adds a `clone` command for setting up the initial repository and
+uses `@{upstream}` instead of `FETCH_HEAD` to track upstream changes.
+
+ The `@{upstream}` change reduces ambiguity when fetching multiple
+ branches, but requires existing users update their `NMBGIT`
+ repository (usually `~/.nmbug`) to distinguish between local and
+ remote-tracking branches. The easiest way to do this is:
+
+ 1. If you have any purely local commits (i.e. they aren't in the
+ nmbug repository on nmbug.tethera.net), push them to a remote
+ repository. We'll restore them from the backup in step 4.
+ 2. Remove your `NMBGIT` repository (e.g. `mv .nmbug .nmbug.bak`).
+ 3. Use the new `clone` command to create a fresh clone:
+
+ nmbug clone http://nmbug.tethera.net/git/nmbug-tags.git
+
+ 4. If you had local commits in step 1, add a remote for that
+ repository and fetch them into the new repository.
+
+Notmuch 0.17 (2013-12-30)
+=========================
+
+Incompatible change in SHA1 computation
+---------------------------------------
+
+Previously on big endian architectures like sparc and powerpc the
+computation of SHA1 hashes was incorrect. This meant that messages
+with overlong or missing message-ids were given different computed
+message-ids than on more common little endian architectures like i386
+and amd64. If you use notmuch on a big endian architecture, you are
+strongly advised to make a backup of your tags using `notmuch dump`
+before this upgrade. You can locate the affected files using something
+like:
+
+ notmuch dump | \
+ awk '/^notmuch-sha1-[0-9a-f]{40} / \
+ {system("notmuch search --exclude=false --output=files id:" $1)}'
projects / notmuch / blobdiff