+Notmuch 0.29.3 (2019-11-27)
+===========================
+
+General
+-------
+
+Fix for use-after-free in notmuch_config_list_{key,val}.
+
+Fix for double close of file in notmuch-dump.
+
+Debian
+------
+
+Drop python2 support from shipped debian packaging.
+
+Notmuch 0.29.2 (2019-10-19)
+===========================
+
+General
+-------
+
+Fix for file descriptor leak when opening gzipped mail files. Thanks
+to James Troup for the bug report and the fix.
+
+Notmuch 0.29.1 (2019-06-11)
+===========================
+
+Build
+-----
+
+Fix for installation failure with `configure --without-emacs`.
+
+Notmuch 0.29 (2019-06-07)
+=========================
+
+General
+-------
+
+Add "body:" field to allow searching for terms that occur only in the
+message body. Users will need to reindex their mail to take advantage
+of this feature.
+
+Add support for indexing user specified headers (e.g. List-Id). See
+notmuch-config(1) for details. This requires reindexing after changing
+the set of headers to be indexed.
+
+Fix bug for searching in some headers for Xapian keywords in quoted
+strings.
+
+Add support for gzip compressed mail messages (/not/ multi-message
+mboxes); e.g. `gzip -9 $MAIL/archive/giant-message && notmuch new`
+should work. Note that maildir flag syncing for gzipped messages is
+currently untested.
+
+Notmuch is now capable of indexing, searching and rendering
+cryptographically-protected Subject: headers of the form produced by
+Enigmail and K-9 mail in encrypted messages.
+
+Command Line Interface
+----------------------
+
+`notmuch show` now supports --body=false and --include-html with
+--format=text
+
+Fix several performance problems with `notmuch reindex`.
+
+`notmuch show` and `notmuch reply` now emit per-message cryptographic
+status in their json and sexp output formats. See devel/schemata for
+more details about what is included there. This status includes
+information about cryptographic protections for the Subject header.
+
+Emacs
+-----
+
+Optionally check for missing attachements in outgoing messages (see
+function `notmuch-mua-attachment-check`).
+
+Bind `B` to browse URLs in current message.
+
+Bind `g` to refresh the current notmuch buffer.
+
+Editing a message as new now includes an FCC header.
+
+Forwarded messages are now tagged as +forwarded (customizable).
+
+Add references header to link forwarded message to thread of original
+message.
+
+The minimum supported major version of Emacs is now 24.
+
+Support for GNU Emacs older than 25.1 is deprecated with this release,
+and may be removed in a future release.
+
+Notmuch-emacs documentation is somewhat expanded. More contributions
+are very welcome.
+
+Build System
+------------
+
+Notmuch release tarballs are now compressed with `xz`.
+
+We now provide conventional detached signatures of the release
+tarballs in addition to the signed `sha256sum` files.
+
+Dependencies
+------------
+
+Support for GMime 2.6 is removed. The minimum supported version of
+GMime is now 3.0.3. GMime also needs to have been compiled with
+cryptography support.
+
+Test Suite
+----------
+
+If either GNU parallel or moreutils parallel is installed, the tests
+in the test suite will now be run in parallel (one per available
+core). This can be disabled with NOTMUCH_TEST_SERIALIZE=1.
+
+Notmuch 0.28.4 (2019-05-05)
+===========================
+
+Command line interface
+----------------------
+
+Fix a spurious error when using `notmuch show --raw` on messages whose
+size is a multiple of the internal buffer size.
+
+Notmuch 0.28.3 (2019-03-05)
+===========================
+
+Library
+-------
+
+Fix a bug with the internal data structure _notmuch_string_map_t used
+by message properties.
+
+Build System
+------------
+
+Serialize calls to sphinx-build to avoid race condition.
+
+Notmuch 0.28.2 (2019-02-17)
+===========================
+
+Emacs
+-----
+
+Invoke gpg with --batch and --no-tty.
+
+Python Bindings
+---------------
+
+Fix documentation build with Python 3.7. Note that Python >= 3.3 is
+now needed to build this documentation.
+
+Notmuch 0.28.1 (2019-02-01)
+===========================
+
+Build System
+------------
+
+`configure` no longer uses the special variable BASH, as this causes
+problems on systems where /bin/sh is bash.
+
+Notmuch 0.28 (2018-10-12)
+=========================
+
+General
+-------
+
+Improve threading
+
+ The threading algorithm has been updated to consider all references,
+ not just the heuristically chosen parent (e.g. when that parent is
+ not in the database). The heuristic for choosing a parent message
+ has also been updated to again consider the In-Reply-To header, if
+ it looks sensible. Re-indexing might be needed to take advantage of
+ the latter change.
+
+Handle mislabelled Windows-1252 parts
+
+ Messages that contain Windows-1252 are apparently frequently
+ mislabelled as ISO 8859-1. Use GMime functionality to apply the
+ correct encoding for such messages.
+
+Command Line Interface
+----------------------
+
+Support relative database paths
+
+ Database paths (i.e. parameters to `notmuch config set
+ database.path`) without a leading `/` are now interpreted relative
+ to $HOME of the invoking user.
+
+Emacs
+-----
+
+Improve stderr handling
+
+ Add a real sentinel process to clean up stderr buffer. This is
+ needed on e.g. macOS.
+
+Call `notmuch-mua-send-hook` hooks when sending a message
+
+ This hook was documented, but not functional for a very long time.
+
+Completion
+----------
+
+The zsh completion has been updated to cover most of the notmuch
+CLI. Internally it uses regexp searching, so needs at least Notmuch
+0.24.
+
+Build System
+------------
+
+The build system now installs notmuch-mutt and notmuch-emacs-mua with
+absolute shebangs, following the conventions of most Linux
+distributions.
+
+Test Suite
+----------
+
+Fix certain tests that were failing with GMime 2.6. Users are reminded
+that support for versions of GMime before 3.0.3 has been deprecated
+since Notmuch 0.25.
+
+Notmuch 0.27 (2018-06-13)
+=========================
+
+General
+-------
+
+Add support for thread:{} queries
+
+ Queries of the form `thread:{foo} and thread:{bar}` match threads
+ containing (possibly distinct) messages matching foo and bar. See
+ `notmuch-search-terms(7)` for details.
+
+Command Line Interface
+----------------------
+
+Add the --full-scan option to `notmuch new`
+
+ This option disables mtime based optimization of scanning for new mail.
+
+Add new --decrypt=stash option for `notmuch show`
+
+ This facilitates a workflow for encrypted messages where message
+ cleartext are indexed on first read, but the user's decryption key
+ does not have to be available during message receipt.
+
+Documentation
+-------------
+
+An initial manual for `notmuch-emacs` is now installed by default (in
+`info` format).
+
+Dependencies
+------------
+
+As of this release, support for versions of Xapian before 1.4.0 is
+deprecated, and may disappear in a future release of notmuch.
+
+Notmuch 0.26.2 (2018-04-28)
+===========================
+
+Library Changes
+---------------
+
+Work around Xapian bug with `get_mset(0,0, x)`
+
+ This causes aborts in `_notmuch_query_count_documents` on
+ e.g. Fedora 28. The underlying bug is fixed in Xapian commit
+ f92e2a936c1592, and will be fixed in Xapian 1.4.6.
+
+Make thread indexing more robust against reference loops
+
+ Choose a thread root by date in case of reference loops. Fix a
+ related abort in `notmuch show`.
+
+Notmuch 0.26.1 (2018-04-02)
+===========================
+
+Library Changes
+---------------
+
+Bump the library minor version. This should have happened in 0.26, but
+better late than never.
+
+
+Notmuch 0.26 (2018-01-09)
+=========================
+
+Command Line Interface
+----------------------
+
+Support for re-indexing existing messages
+
+ There is a new subcommand, `notmuch reindex`, which re-indexes all
+ messages matching supplied search terms. This permits users to
+ change the way specific messages are indexed.
+
+ Note that for messages with multiple variants in the message
+ archive, the recorded Subject: of may change upon reindexing,
+ depending on the order in which the variants are indexed.
+
+Improved error reporting in notmuch new
+
+ Give more details when reporting certain Xapian exceptions.
+
+Support maildir synced tags in `new.tags`
+
+ Tags `draft`, `flagged`, `passed`, and `replied` are now supported
+ in `new.tags`. The tag `unread` is still special in the presence of
+ maildir syncing, and will be added for files in `new/` regardless of
+ the setting of `new.tags`.
+
+Support /regex/ in new.ignore
+
+ Files and directories may be ignored based on regular expressions.
+
+Allow `notmuch insert --folder=""`
+
+ This inserts into the top level folder.
+
+Strip trailing '/' from folder path for notmuch insert
+
+ This prevents a potential problem with duplicated database records.
+
+New option --output=address for notmuch address
+
+Make `notmuch show` more robust against deleting duplicate files
+
+The option --decrypt now takes an explicit argument
+
+ The --decrypt option to `notmuch show` and `notmuch reply` now takes
+ an explicit argument. If you were used to invoking `notmuch show
+ --decrypt`, you should switch to `notmuch show --decrypt=true`.
+
+Boolean and keyword arguments now take a `--no-` prefix
+
+Encrypted Mail
+--------------
+
+Indexing cleartext of encrypted e-mails
+
+ It's now possible to include the cleartext of encrypted e-mails in
+ the notmuch index. This makes it possible to search your encrypted
+ e-mails with the same ease as searching cleartext. This can be done
+ on a per-message basis by passing --decrypt=true to indexing
+ commands (new, insert, reindex), or by default by running "notmuch
+ config set index.decrypt true".
+
+ Encrypted messages whose cleartext is indexed will typically also
+ have their session keys stashed as properties associated with the
+ message. Stashed session keys permit rapid rendering of long
+ encrypted threads, and disposal of expired encryption-capable keys.
+ If for some reason you want cleartext indexing without stashed
+ session keys, use --decrypt=nostash for your indexing commands (or
+ run "notmuch config set index.decrypt nostash"). See `index.decrypt`
+ in notmuch-config(1) for more details.
+
+ Note that stashed session keys permit reconstruction of the
+ cleartext of the encrypted message itself, and the contents of the
+ index are roughly equivalent to the cleartext as well. DO NOT USE
+ this feature without considering the security of your index.
+
+Emacs
+-----
+
+Guard against concurrent searches in notmuch-tree
+
+Use make-process when available
+
+ This allows newer Emacs to separate stdout and stderr from the
+ notmuch command without using temporary files.
+
+Library Changes
+---------------
+
+Indexing files with duplicate message-id
+
+ Files with duplicate message-id's are now indexed, and searchable
+ via terms and phrases. There are known issues related to
+ presentation of results and regular-expression search, but in
+ principle no mail file should be completely unsearchable now.
+
+New functions to count files
+
+ Two new functions in the libnotmuch API:
+ `notmuch_message_count_files`, and `notmuch_thread_get_total_files`.
+
+New function to remove properties
+
+ A new function was added to the libnotmuch API to make it easier to
+ drop all properties with a common pattern:
+ `notmuch_message_remove_all_properties_with_prefix`
+
+Change of return value of `notmuch_thread_get_authors`
+
+ In certain corner cases, `notmuch_thread_get_authors` previously
+ returned NULL. This has been replaced by an empty string, since the
+ possibility of NULL was not documented.
+
+Transition `notmuch_database_add_message` to `notmuch_database_index_file`
+
+ When indexing an e-mail message, the new
+ `notmuch_database_index_file` function is the preferred form, and
+ the old `notmuch_database_add_message` is deprecated. The new form
+ allows passing a set of options to the indexing engine, which the
+ operator may decide to change from message to message.
+
+Test Suite
+----------
+
+Out-of-tree builds
+
+ The test suite now works properly with out-of-tree builds, i.e. with
+ separate source and build directories. The --root option to tests
+ has been dropped. The same can now be achieved more reliably using
+ out-of-tree builds.
+
+Python Bindings
+---------------
+
+Python bindings specific Debian packaging is removed
+
+ The bindings have been build by the top level Debian packaging for a
+ long time, and `bindings/python/debian` has bit-rotted.
+
+Open mail files in binary mode when using Python 3
+
+ This avoids certain encoding related crashes under Python 3.
+
+Add python bindings for `notmuch_database_{get,set}_config*`
+
+Optional `decrypt_policy` flag is available for notmuch.database().index_file()
+
+nmbug
+-----
+
+nmbug's internal version increases to 0.3 in this notmuch release.
+User-facing changes with this notmuch release:
+
+* Accept failures to unset `core.worktree` in `clone`, which allows
+ nmbug to be used with Git 2.11.0 and later.
+* Auto-checkout in `clone` if it wouldn't clobber existing content,
+ which makes the initial clone more convenient.
+* Only error for invalid diff lines in `tags/`, which allows for
+ `README`s and similar in nmbug repositories.
+
+Documentation
+-------------
+
+New man page: notmuch-properties(7)
+
+ This new page to the manual describes common conventions for how
+ properties are used by libnotmuch, the CLI, and associated programs.
+ External projects that use properties are encouraged to claim their
+ properties and conventions here to avoid collisions.
+
+Notmuch 0.25.3 (2017-12-08)
+===========================
+
+Emacs
+-----
+
+Extend mitigation (disabling handling x-display in text/enriched) for
+Emacs bug #28350 to Emacs versions before 24.4 (i.e. without
+`advice-add`).
+
+Command Line Interface
+----------------------
+
+Correctly report userid validity. Fix test suite failure for GMime >=
+3.0.3. This change raises the minimum supported version of GMime 3.x
+to 3.0.3.
+
+Notmuch 0.25.2 (2017-11-05)
+===========================
+
+Command Line Interface
+----------------------
+
+Fix segfault in notmuch-show crypto handling when compiled against
+GMime 2.6; this was a regression in 0.25.
+
+General
+-------
+
+Support for GMime before 3.0 is now deprecated, and will be removed in
+a future release.
+
+Notmuch 0.25.1 (2017-09-11)
+===========================
+
+Emacs
+-----
+
+Disable handling x-display in text/enriched messages. Mitigation for
+Emacs bug #28350.
+
+Notmuch 0.25 (2017-07-25)
+=========================
+
+General
+-------
+
+Add regexp searching for mid, paths, and tags.
+
+Skip HTML tags when indexing
+
+ In particular this avoids indexing large inline images.
+
+Command Line Interface
+----------------------
+
+Bash completion is now installed to /usr/share by default.
+
+Allow space as separator for keyword arguments.
+
+Emacs
+-----
+
+Support for stashing message timestamp in show and tree views
+
+ Invoking `notmuch-show-stash-date` with a prefix argument
+ stashes the unix timestamp of the current message instead of
+ the date string.
+
+Don't use 'function' as variable name, workaround emacs bug 26406.
+
+Library Changes
+---------------
+
+Add workaround for date parsing of bad input in older GMime
+
+ In certain circumstances, older GMime libraries could return
+ negative numbers when parsing syntactically invalid dates.
+
+Replace deprecated functions with status returning versions
+
+ API of notmuch_query_{search,count}_{messages,threads} has
+ changed. notmuch_query_add_tag_exclude now returns a status
+ value.
+
+Add support for building against GMime 3.0.
+
+Rename libutil.a to libnotmuch_util.a.
+
+libnotmuch SONAME is incremented to libnotmuch.so.5.
+
+Notmuch 0.24.2 (2017-06-01)
+===========================
+
+Command Line Interface
+----------------------
+
+Fix output from `notmuch dump --include=properties` to not include tags.
+
+Emacs
+-----
+
+Fix filename stashing in tree view.
+
+Notmuch 0.24.1 (2017-04-01)
+===========================
+
+General
+-------
+
+Fix regressions in non-regexp search for `from:` and `subject:`
+
+ The regexp search code in 0.24 introduced a regression in the
+ handling of empty queries and wildcards. These are both corrected in
+ this release.
+
+Command Line Interface
+----------------------
+
+Fix several memory leaks in `notmuch show`
+
+Update NEWS for 0.24 to mention schema changes
+
+Fix bug in dump header
+
+ The previous version of the dump header failed to mention the
+ inclusion of tags. This fix bumps the version number of the dump
+ format to 3. There are no other changes to the format.
+
+Library Changes
+---------------
+
+Fix a read-after-free in the library.
+
+Notmuch 0.24 (2017-03-12)
+=========================
+
+General
+-------
+
+Regular expression searches supported for `from:` and `subject:`
+
+ This requires recent Xapian (1.4+) See notmuch-search-terms(7) for
+ details.
+
+Command Line Interface
+----------------------
+
+Run external `notmuch-` prefixed commands as subcommands
+
+ You can now add your own `notmuch-` prefixed commands in PATH, and
+ have notmuch run them as if they were notmuch commands. See the
+ `notmuch(1)` man page for details
+
+New default output format to 3
+
+ See devel/schemata for details. Users of the structured output
+ format are reminded of the `--format-version` argument to `notmuch
+ show` and `notmuch search` which can prevent breakage when the
+ default format changes.
+
+Emacs
+-----
+
+Postpone and resume messages in `notmuch-message-mode` (composition)
+
+ Notmuch now has built in support for postponing, saving and resuming
+ messages. The default bindings are C-x C-s to save a draft, C-c C-p
+ to postpone a draft (save and exit compose buffer), and "e" in show
+ or tree view to resume.
+
+ Draft messages are tagged with `notmuch-draft-tags` (draft by
+ default) so you may wish to add that to the excluded tags list. When
+ saving a previously saved draft message the earlier draft gets
+ tagged deleted.
+
+ Note that attachments added before postponing will be included as
+ they were when you postponed in the final message.
+
+Address Completion
+
+ It is now possible to save the list of address completions for
+ notmuch's internal completion between runs of emacs. This makes the
+ first calls to address completion much better and faster. For
+ privacy reasons it is disabled by default, to enable set or
+ customize `notmuch-address-save-filename`.
+
+Tag jump menu
+
+ It is now possible to configure tagging shortcuts (with an interface
+ like notmuch jump). For example (by default) k u will remove the
+ unread tag, and k s will add a tag "spam" and remove the inbox
+ tag. Pressing k twice will do the reverse operation so, for example,
+ k k s removes the spam tag and adds the inbox tag. See the customize
+ variable `notmuch-tagging-keys` for more information.
+
+Refresh all buffers
+
+ It is now possible to refresh all notmuch buffers to reflect the
+ current state of the database with a single command, `M-=`.
+
+Stop display of `application/*` parts
+
+ By default gnus displays all `application/*` parts such as
+ application/zip in the message buffer. This has several undesirable
+ effects for notmuch (security, triggering errors etc). Notmuch now
+ overrides this and does not display them by default. If you have
+ customized `mm-inline-override-types` then we assume you know what
+ you want and do not interfere; if you do want to stop the display of
+ `application/*` add `application/*` to your customization. If you want
+ to allow `application/*` then set `mm-inline-override-types` to
+ "non/existent".
+
+Small change in the api for notmuch-search-tag
+
+ When `notmuch-search-tag` is called non-interactively and the region
+ is set, then it only tags the threads in the region. (Previously it
+ only tagged the current thread.)
+
+Bugfix for sending messages with very long headers
+
+ Previously emacs didn't fold very long headers when sending which
+ could cause the MTA to refuse to send the message. This makes sure
+ it does fold any long headers so the message is RFC compliant.
+
+`notmuch emacs-mua` command installed with the Emacs interface
+
+ We've carried a `notmuch-emacs-mua` script in the source tree for
+ quite some time. It can be used to launch the Notmuch Emacs
+ interface from the command line in many different ways. Starting
+ with this release, it will be installed with the Emacs
+ interface. With the new external subcommand support, the script
+ transparently becomes a new notmuch command. See the
+ `notmuch-emacs-mua(1)` man page for details.
+
+Notmuch Emacs desktop integration
+
+ The desktop integration file will now be installed with the Notmuch
+ Emacs interface, adding a Notmuch menu item and configuration to
+ allow the user to set up Notmuch Emacs as the `mailto:` URL handler.
+
+Library changes
+---------------
+
+`notmuch_query_count_messages` is now non-destructive
+
+ Internally the implementation of excludes has changed to make this
+ possible.
+
+Improved handling of DatabaseModifiedError
+
+ Previously uncaught exceptions reading message metadata are now
+ handled.
+
+Notmuch 0.23.7 (2017-02-28)
+===========================
+
+Test Suite
+----------
+
+Drop use of gpgconf --create-socketdir. Move $GNUPGHOME to /tmp.
+
+ It turns out the hardcoded use of /run/user in gpg doesn't work out
+ that well in some environments. The more low tech fix is to move all
+ of $GNUPGHOME to somewhere where we can control the length of the
+ paths.
+
+Notmuch 0.23.6 (2017-02-27)
+===========================
+
+Command Line Interface
+----------------------
+
+Fix read-after-free bug in `notmuch new`.
+
+Test Suite
+----------
+
+Use gpgconf --create-socketdir if available.
+
+ GnuPG has a facility to use sockets in /run or /var/run to avoid
+ problems with long socket paths, but this is not enabled by default
+ for GNUPGHOME other than $HOME/.gnupg. Enable it, if possible.
+
+Notmuch 0.23.5 (2017-01-09)
+===========================
+
+Build system
+------------
+
+Fix quoting bug in configure. This had introduced a RUNPATH into the
+notmuch binary in cases where it was not not needed.
+
+Notmuch 0.23.4 (2016-12-24)
+===========================
+
+Command Line Interface
+----------------------
+
+Improve error handling in notmuch insert
+
+ Database lock errors no longer prevent message file delivery to the
+ filesystem. Certain errors during `notmuch insert` most likely to
+ be temporary return EX_TEMPFAIL.
+
+Emacs
+-----
+
+Restore autoload cookie for notmuch-search.
+
+Notmuch 0.23.3 (2016-11-27)
+===========================
+
+Command Line Interface
+----------------------
+
+Treat disappearing files during notmuch new as non-fatal.
+
+Test Suite
+----------
+
+Fix incompatibility (related to signature size) with gnupg 2.1.16.
+