-Notmuch 0.17~rc4 (2013-12-28)
-=============================
+Notmuch 0.20 (UNRELEASED)
+=========================
+
+Command-Line Interface
+----------------------
+
+There is a new `mimetype:` search prefix
+
+ The new `mimetype:` search prefix allows searching for the
+ content-type of attachments, which is now indexed. See the
+ `notmuch-search-terms` manual page for details.
+
+Documentation
+-------------
+
+Support for using rst2man in place of sphinx to build the
+docmumentation has been removed.
+
+Contrib
+-------
+
+`notmuch-deliver` is removed. As far as we know, all functionality
+previously provided by `notmuch-deliver` should now be provided by
+`notmuch insert`, provided by the main notmuch binary.
+
+nmbug-status
+------------
+
+`nmbug-status` now only matches local branches when reading
+`status-config.json` from the `config` branch of the `NMBGIT`
+repository. To help new users running `nmbug-status`, `nmbug clone`
+now creates a local `config` branch tracking `origin/config`. Folks
+who use `nmbug-status` with an in-Git config (i.e. you don't use the
+`--config` option) who already have `NMBGIT` set up are encouraged to
+run:
+
+ git checkout config origin/config
+
+in their `NMBGIT` repository (usually `~/.nmbug`).
+
+Notmuch 0.19 (2014-11-14)
+=========================
+
+Overview
+--------
+
+This release improves the reliability of `notmuch dump` and the error
+handling for `notmuch insert`. The new `notmuch address` command is
+intended to make searching for email addresses more convenient. At the
+library level the revised handling of missing messages fixes at least
+one bug in threading. The release also includes several interface
+improvements to the emacs interface, most notably the ability to bind
+keyboard shortcuts to saved searches.
+
+Command-Line Interface
+----------------------
+
+Stopped `notmuch dump` failing if someone writes to the database
+
+ The dump command now takes the write lock when running. This
+ prevents other processes from writing to the database during the
+ dump which would cause the dump to fail. Note, if another notmuch
+ process already has the write lock the dump will not start, so
+ script callers should still check the return value.
+
+`notmuch insert` requires succesful message indexing for success status
+
+ Previously the `notmuch insert` subcommand indicated success even if
+ the message indexing failed, as long as the message was delivered to
+ file system. This could have lead to delivered messages missing
+ tags, etc. `notmuch insert` is now more strict, also requiring
+ succesful indexing for success status. Use the new `--keep` option
+ to revert to the old behaviour (keeping the delivered message file
+ and returning success even if indexing fails).
+
+`notmuch insert` has gained support for `post-insert` hook
+
+ The new `post-insert` hook is run after message delivery, similar to
+ `post-new`. There's also a new option `notmuch insert --no-hooks` to
+ skip the hook. See the notmuch-hooks(1) man page for details.
+
+`notmuch deliver` is deprecated
+
+ With this release we believe that `notmuch insert` has reached
+ parity with `notmuch deliver`. We recommend that all users of
+ `notmuch deliver` switch to `notmuch insert` as the former is
+ currently unmaintained.
+
+`notmuch search` now supports `--duplicate=N` option with `--output=messages`
+
+ Complementing the `notmuch search --duplicate=N --output=files`
+ options, the new `--duplicate=N --output=messages` combination
+ limits output of message IDs to messages matching search terms that
+ have at least `N` files associated with them.
+
+Added `notmuch address` subcommand
+
+ This new subcommand searches for messages matching the given search
+ terms, and prints the addresses from them. Duplicate addresses are
+ filtered out. The `--output` option controls which of the following
+ information is printed: sender addresses, recipient addresses and
+ count of duplicate addresses.
+
+Emacs Interface
+---------------
+
+Use the `j` key to access saved searches from anywhere in notmuch
+
+ `j` is now globally bound to `notmuch-jump`, which provides fast,
+ interactive keyboard shortcuts to saved searches. For example,
+ with the default saved searches `j i` from anywhere in notmuch will
+ bring up the inbox.
+
+Improved handling of the unread tag
+
+ Notmuch now marks an open message read (i.e., removes the unread
+ tag) if point enters the message at any time in a show buffer
+ regardless of how point got there (mouse click, cursor command, page
+ up/down, notmuch commands such as n,N etc). This fixes various
+ anomalies or bugs in the previous handling. Additionally it is
+ possible to customize the mark read handling by setting
+ `notmuch-show-mark-read-function` to a custom function.
+
+Expanded default saved search settings
+
+ The default saved searches now include several more common searches,
+ as well as shortcut keys for `notmuch-jump`.
+
+Improved `q` binding in notmuch buffers
+
+ `q` will now bury rather than kill a notmuch search, show or tree
+ buffer if there are multiple windows showing the buffer. If only a
+ single window is showing the buffer, it is killed.
+
+`notmuch-show-stash-mlarchive-link-alist` now supports functions
+
+ Some list archives may use a more complicated scheme for referring
+ to messages than just concatenated URL and message ID. For example,
+ patchwork requires a query to translate message ID to a patchwork
+ patch ID. `notmuch-show-stash-mlarchive-link-alist` now supports
+ functions to better cover such cases. See the help documentation for
+ the variable for details.
+
+Library changes
+---------------
+
+Introduced database version 3 with support for "database features."
+
+ Features are independent aspects of the database schema.
+ Representing these independently of the database version number will
+ let us evolve the database format faster and more incrementally,
+ while maintaining better forwards and backwards compatibility.
+
+Library users are no longer required to call `notmuch_database_upgrade`
+
+ Previously, library users were required to call
+ `notmuch_database_needs_upgrade` and `notmuch_database_upgrade`
+ before using a writable database. Even the CLI didn't get this
+ right, and it is no longer required. Now, individual APIs may
+ return `NOTMUCH_STATUS_UPGRADE_REQUIRED` if the database format is
+ too out of date for that API.
+
+Library users can now abort an atomic section by closing the database
+
+ Previously there was no supported way to abort an atomic section.
+ Callers can now simply close the database, and any outstanding
+ atomic section will be aborted.
+
+Add return status to `notmuch_database_close` and
+`notmuch_database_destroy`
+
+Bug fixes and performance improvements for thread linking
+
+ The database now represents missing-but-referenced messages ("ghost
+ messages") similarly to how it represents regular messages. This
+ enables an improved thread linking algorithm that performs better
+ and fixes a bug that sometimes prevented notmuch from linking
+ messages into the same thread.
+
+nmbug
+-----
+
+The Perl script has been translated to Python; you'll need Python 2.7
+or anything from the 3.x line. Most of the user-facing interface is
+the same, but `nmbug help` is now `nmbug --help`, and the following nmbug
+commands have slightly different interfaces: `archive`, `commit`,
+`fetch`, `log`, `pull`, `push`, and `status`. For details on the
+new interface for a given command, run `nmbug COMMAND --help`.
+
+nmbug-status
+------------
+
+`nmbug-status` can now optionally load header and footer templates
+from the config file. Use something like:
+
+ {
+ "meta": {
+ "header": "<!DOCTYPE html>\n<html lang="en">\n...",
+ "footer": "</body></html>",
+ ...
+ },
+ ...
+ },
+
+Python Bindings
+---------------
+
+Add support for `notmuch_query_add_tag_exclude`
+
+Build System
+------------
+
+The notmuch binaries and libraries are now build with debugging symbols
+by default. Users concerned with disk space should change the
+defaults when configuring or use the strip(1) command.
+
+Notmuch 0.18.2 (2014-10-25)
+===========================
+
+Test Suite
+----------
+
+Translate T380-atomicity to use gdb/python
+
+ The new version is compatible with gdb 7.8
+
+Emacs 24.4 related bug fixes
+
+ The Messages buffer became read-only, and the generated mime
+ structure for signatures changed slightly.
+
+Simplify T360-symbol-hiding
+
+ Replace the use of `objdump` on the object files with `nm` on the
+ resulting lib.
+
+Notmuch 0.18.1 (2014-06-25)
+===========================
+
+This is a bug fix and portability release.
+
+Build System
+------------
+
+Add a workaround for systems without zlib.pc
+
+Make emacs install robust against the non-existence of emacs
+
+Put notmuch lib directory first in RPATH
+
+Fix handling of `html_static_path` in sphinx
+
+ Both the python bindings and the main docs had spurious settings of
+ this variable.
+
+Test Suite
+----------
+
+Use --quick when starting emacs
+
+ This avoids a hang in the T160-json tests.
+
+Allow pending break points in atomicity script
+
+ This allows the atomicity tests to run on several more architectures/OSes.
+
+Command-Line Interface
+----------------------
+
+To improve portability use fsync instead of fdatasync in
+`notmuch-dump`. There should be no functional difference.
+
+Library changes
+---------------
+
+Resurrect support for single-message mbox files
+
+ The removal introduced a bug with previously indexed single-message
+ mboxes. This support remains deprecated.
+
+Fix for phrase indexing
+
+ There were several bugs where words intermingled from different
+ headers and MIME parts could match a single phrase query. This fix
+ will affect only newly indexed messages.
+
+Emacs Interface
+---------------
+
+Make sure tagging on an empty query is harmless
+
+ Previously tagging an empty query could lead to tags being
+ unintentionally removed.
+
+Notmuch 0.18 (2014-05-06)
+=========================
+
+Overview
+--------
+
+This new release includes some enhancements to searching for messages
+by filesystem location (`folder:` and `path:` prefixes under *General*
+below). Saved searches in *Emacs* have also been enhanced to allow
+distinct search orders for each one. Another enhancement to the
+*Emacs* interface is that replies to encrypted messages are now
+encrypted, reducing the risk of unintentional information disclosure.
+The default dump output format has changed to the more robust
+`batch-tag` format. The previously deprecated parsing of single
+message mboxes has been removed. For detailed release notes, see
+below.
+
+General
+-------
+
+The `folder:` search prefix now requires an exact match
+
+ The `folder:` prefix has been changed to search for email messages
+ by the exact, case sensitive maildir or MH folder name. Wildcard
+ matching (`folder:foo*`) is no longer supported. The new behaviour
+ allows for more accurate mail folder based searches, makes it
+ possible to search for messages in the top-level folder, and should
+ lead to less surprising results than the old behaviour. Users are
+ advised to see the `notmuch-search-terms` manual page for details,
+ and review how the change affects their existing `folder:` searches.
+
+There is a new `path:` search prefix
+
+ The new `path:` search prefix complements the `folder:` prefix. The
+ `path:` prefix searches for email messages that are in particular
+ directories within the mail store, optionally recursively using a
+ special syntax. See the `notmuch-search-terms` manual page for
+ details.
+
+Notmuch database upgrade due to `folder:` and `path:` changes
+
+ The above mentioned changes to the `folder:` prefix and the addition
+ of `path:` prefix require a Notmuch database upgrade. This will be
+ done automatically, without prompting on the next time `notmuch new`
+ is run after the upgrade. The upgrade is not reversible, and the
+ upgraded database will not be readable by older versions of
+ Notmuch. As a safeguard, a database dump will be created in the
+ `.notmuch` directory before upgrading.
+
+Library changes
+---------------
+
+Notmuch database upgrade
+
+ The libnotmuch consumers are reminded to handle database upgrades
+ properly, either by relying on running `notmuch new`, or checking
+ `notmuch_database_needs_upgrade()` and calling
+ `notmuch_database_upgrade()` as necessary. This has always been the
+ case, but in practise there have been no database upgrades in any
+ released version of Notmuch before now.
+
+Support for indexing mbox files has been dropped
+
+ There has never been proper support for mbox files containing
+ multiple messages, and the support for single-message mbox files has
+ been deprecated since Notmuch 0.15. The support has now been
+ dropped, and all mbox files will be rejected during indexing.
+
+Message header parsing changes
+
+ Notmuch previously had an internal parser for message headers. The
+ parser has now been dropped in favour of letting GMime parse both
+ the headers and the message MIME structure at the same pass. This is
+ mostly an internal change, but the GMime parser is stricter in its
+ interpretation of the headers. This may result in messages with
+ slightly malformed message headers being now rejected.
+
+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.
+
+`notmuch insert` respects maildir.synchronize_flags config option
+
+ Do not synchronize tags to maildir flags in `notmuch insert` if the
+ user does not want it.
+
+The commands set consistent exit status codes on failures
+
+ The cli commands now consistently set exit status of 1 on failures,
+ except where explicitly otherwise noted. The notable expections are
+ the status codes for format version mismatches for commands that
+ support formatted output.
+
+Bug fix for checking configured new.tags for invalid tags
+
+ `notmuch new` and `notmuch insert` now check the user configured
+ new.tags for invalid tags, and refuse to apply them, similar to
+ `notmuch tag`. Invalid tags are currently the empty string and tags
+ starting with `-`.
+
+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.
+
+Ido-completing-read initialization in Emacs 23
+
+ `ido-completing-read` in Emacs 23 versions 1 through 3 freezes unless
+ it is initialized. Defadvice-based *Ido* initialization is defined
+ for these Emacs versions.
+
+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`.
+
+Replies to encrypted messages will be encrypted by default
+
+ In the interest of maintaining confidentiality of communications,
+ the Notmuch Emacs interface now automatically adds the mml tag to
+ encrypt replies to encrypted messages. This should make it less
+ likely to accidentally reply to encrypted messages in plain text.
+
+Reply pushes mark before signature
+
+ We push mark and set point on reply so that the user can easily cut
+ the quoted text. The mark is now pushed before the signature, if
+ any, instead of end of buffer so the signature is preserved.
+
+Message piping uses the originating buffer's working directory
+
+ `notmuch-show-pipe-message` now uses the originating buffer's
+ current default directory instead of that of the `*notmuch-pipe*`
+ buffer's.
+
+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
---------------------------------------