notmuch release 0.15 now available

[David Bremner]

Where to obtain notmuch 0.15
===========================
  http://notmuchmail.org/releases/notmuch-0.15.tar.gz

Which can be verified with:

  http://notmuchmail.org/releases/notmuch-0.15.tar.gz.sha1
  7b604ec0ed56f798d1bb3ddbeeacc34a58843725  notmuch-0.15.tar.gz

  http://notmuchmail.org/releases/notmuch-0.15.tar.gz.sha1.asc
  (signed by David Bremner)

What's new in notmuch 0.15
=========================

General
-------

Date range search support

  The `date:` prefix can now be used in queries to restrict the results
  to only messages within a particular time range (based on the Date:
  header) with a range syntax of `date:<since>..<until>`. Notmuch
  supports a wide variety of expressions in `<since>` and
  `<until>`. Please refer to the `notmuch-search-terms(7)` manual page
  for details.

Empty tag names and tags beginning with "-" are deprecated

  Such tags have been a frequent source of confusion and cause
  (sometimes unresolvable) conflicts with other syntax.  notmuch tag
  no longer allows such tags to be added to messages.  Removing such
  tags continues to be supported to allow cleanup of existing tags,
  but may be removed in a future release.

Command-Line Interface
----------------------

`notmuch new` no longer chokes on mboxes

  `notmuch new` now rejects mbox files containing more than one
  message, rather than treating the file as one giant message.

Support for single message mboxes is deprecated

  For historical reasons, `notmuch new` will index mbox files
  containing a single message; however, this behavior is now
  officially deprecated.

Fixed `notmuch new` to skip ignored broken symlinks

  `notmuch new` now correctly skips symlinks if they are in the
  ignored files list.  Previously, it would abort when encountering
  broken symlink, even if it was ignored.

New dump/restore format and tagging interface

  There is a new `batch-tag` format for dump and restore that is more
  robust, particularly with respect to tags and message-ids containing
  whitespace.

  `notmuch tag` now supports the ability to read tag operations and
  queries from an input stream, in a format compatible with the new
  dump/restore format.

Bcc and Reply-To headers are now available in notmuch show json output

  The `notmuch show --format=json` now includes "Bcc" and "Reply-To" headers.
  For example notmuch Emacs client can now have these headers visible
  when the headers are added to the `notmuch-message-headers` variable.

CLI callers can now request a specific output format version

  `notmuch` subcommands that support structured output now support a
  `--format-version` argument for requesting a specific version of the
  structured output, enabling better compatibility and error handling.

`notmuch search` has gained a null character separated text output format

  The new --format=text0 output format for `notmuch search` prints
  output separated by null characters rather than newline
  characters. This is similar to the find(1) -print0 option, and works
  together with the xargs(1) -0 option.

Emacs Interface
---------------

Removal of the deprecated `notmuch-folders` variable

  `notmuch-folders` has been deprecated since the introduction of saved
  searches and the notmuch hello view in notmuch 0.3. `notmuch-folders`
  has now been removed. Any remaining users should migrate to
  `notmuch-saved-searches`.

Visibility of MIME parts can be toggled

  Each part of a multi-part MIME email can now be shown or hidden
  using the button at the top of each part (by pressing RET on it or
  by clicking).  For emails with multiple alternative formats (e.g.,
  plain text and HTML), only the preferred format is shown initially,
  but other formats can be shown using their part buttons.  To control
  the behavior of this, see
  `notmuch-multipart/alternative-discouraged` and
  `notmuch-show-all-multipart/alternative-parts`.

  Note notmuch-show-print-message (bound to '#' by default) will print
  all parts of multipart/alternative message regardless of whether
  they are currently hidden or shown in the buffer.

Emacs now buttonizes mid: links

  mid: links are a standardized way to link to messages by message ID
  (see RFC 2392).  Emacs now hyperlinks mid: links to the appropriate
  notmuch search.

Handle errors from bodypart insertions

  If displaying the text of a message in show mode causes an error (in
  the `notmuch-show-insert-part-*` functions), notmuch no longer cuts
  off thread display at the offending message.  The error is now
  simply displayed in place of the message.

Emacs now detects version mismatches with the notmuch CLI

  Emacs now detects and reports when the Emacs interface version and
  the notmuch CLI version are incompatible.

Improved text/calendar content handling

  Carriage returns in embedded text/calendar content caused insertion
  of the calendar content fail. Now CRs are removed before calling icalendar
  to extract icalendar data. In case icalendar extraction fails an error
  is thrown for the bodypart insertion function to deal with.

Disabled coding conversions when reading in `with-current-notmuch-show-message`

  Depending on the user's locale, saving attachments containing 8-bit
  data may have performed an unintentional encoding conversion,
  corrupting the saved attachment.  This has been fixed by making
  `with-current-notmuch-show-message` disable coding conversion.

Fixed errors with HTML email containing images in Emacs 24

  Emacs 24 ships with a new HTML renderer that produces better output,
  but is slightly buggy.  We work around a bug that caused it to fail
  for HTML email containing images.

Fixed handling of tags with unusual characters in them

  Emacs now handles tags containing spaces, quotes, and parenthesis.

Fixed buttonization of id: links without quote characters

  Emacs now correctly buttonizes id: links where the message ID is not
  quoted.

`notmuch-hello` refresh point placement improvements

  Refreshing the `notmuch-hello` buffer does a better job of keeping
  the point where it was.

Automatic tag changes are now unified and customizable

  All the automatic tag changes that the Emacs interface makes when
  reading, archiving, or replying to messages, can now be
  customized. Any number of tag additions and removals is supported
  through the `notmuch-show-mark-read`, `notmuch-archive-tags`, and
  `notmuch-message-replied-tags` customization variables.

Support for stashing the thread id in show view

  Invoking `notmuch-show-stash-message-id` with a prefix argument
  stashes the (local and database specific) thread id of the current
  thread instead of the message id.

New add-on tool: notmuch-pick
-----------------------------

The new contrib/ tool `notmuch-pick` is an experimental threaded message
view for the emacs interface. Each message is one line in the results
and the thread structure is shown using UTF-8 box drawing characters
(similar to Mutt's threaded view). It comes between search and show in
terms of amount of output and can be useful for viewing both single
threads and multiple threads. See the notmuch-pick README file for
further details and installation.

Portability
-----------

notmuch now builds on OpenBSD.

Internal test framework changes
-------------------------------

The emacsclient binary is now user-configurable

  The test framework now accepts TEST_EMACSCLIENT in addition to
  TEST_EMACS for configuring the emacsclient to use.  This is
  necessary to avoid using an old emacsclient with a new emacs, which
  can result in buggy behavior.

What is notmuch
===============
Notmuch is a system for indexing, searching, reading, and tagging
large collections of email messages in maildir or mh format. It uses
the Xapian library to provide fast, full-text search with a convenient
search syntax.

For more about notmuch, see http://notmuchmail.org

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