+Notmuch 0.21 (UNRELEASED)
+=========================
+
+General
+-------
+
+Notmuch now requires gmime >= 2.6.7. The gmime 2.4 series is no longer
+supported.
+
+Database revision tracking: `lastmod:` queries
+
+ Each message now has a metadata revision number that increases with
+ every tagging operation. See the discussion of `lastmod:` in
+ `notmuch-search-terms(7)` for more information.
+
+Notmuch database upgrade to support `lastmod:` queries
+
+ The above mentioned `lastmod:` prefix. 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.
+
+Build System
+------------
+
+The ruby bindings are now built as part of the main notmuch build
+process. This can be disabled with the `--without-ruby` option to
+configure.
+
+Building the documentation can be disabled with the `--without-docs`
+option to configure.
+
+Skipped individual tests are no longer considered as failures.
+
+Command Line Interface
+----------------------
+
+Database revision tracking
+
+ Two new options were added to support revision tracking. A global
+ option "--uuid" (`notmuch(1)`) was added for to detect counter
+ rollover and reinitialization, and `notmuch-count(1)` gained a
+ `--lastmod` option to query database revision tracking data.
+
+Emacs Interface
+---------------
+
+`notmuch-emacs-version` is used in `User-Agent` header
+
+ The value of recently introduced variable `notmuch-emacs-version` is
+ now used as a part of `User-Agent` header when sending emails.
+
+Removed `notmuch-version` function by renaming it to `notmuch-cli-version`
+
+ With existing variable `notmuch-emacs-version` the accompanied
+ function which retrieves the version of `notmuch-command` is
+ better named as `notmuch-cli-version`.
+
+Query input now supports completion for "is:<tag>".
+
+New message composition mode: `notmuch-compose-mode`
+
+ This is mainly to fix fcc handling, but may be useful for user
+ customization as well.
+
+Library
+-------
+
+The use of absolute paths is now enforced when calling
+`notmuch_database_{open, create}`.
+
+Database revision tracking
+
+ Revision tracking is supported via a new prefix "lastmod:" in the
+ query parser and the new function
+ `notmuch_database_get_revision`. For the latter, see `notmuch(3)`.
+
+New status code returning API for n_query_count_{messages,threads}.
+
+Deprecated functions
+
+ `notmuch_query_search_threads`, `notmuch_query_search_messages`,
+ `notmuch_query_count_messages`, and `notmuch_query_count_threads`
+ are all deprecated as of this release. Clients are encouraged to
+ transition to the `_st` variants supporting better error reporting.
+
+nmbug-status
+------------
+
+nmbug-status now supports specifying the sort order for each view
+
+Notmuch 0.20.2 (2015-06-27)
+===========================
+
+Emacs Interface
+---------------
+
+Bug fix for marking messages read in `notmuch-tree` mode.
+
Notmuch 0.20.1 (2015-06-01)
===========================
Test Suite
----------
-Work around apparent gdb bug on arm64
+Work around apparent gdb bug on arm64.
Notmuch 0.20 (2015-05-31)
=========================
The 'G' key works wherever '=' works. Before refreshing the screen
it calls an external program that can be used to poll email servers,
- run notmuch new and setup specific tags for the new emails. The
+ run notmuch new and set up specific tags for the new emails. The
script to be called should be configured with the "Notmuch Poll
Script" setting in the customize interface. This script will
typically invoke "notmuch new" and then perhaps several "notmuch
projects / notmuch / blobdiff