+Completion related updates include: de-duplicating tags offered for
+completion, use the actual initial input in address completion, allow
+users to opt out of notmuch address completion, and do not force Ido
+when prompting for senders.
+
+Some keymaps used to contain bindings for unnamed commands. These
+lambda expressions have been replaced by named commands (symbols), to
+ease customization.
+
+Lexical binding is now used in all notmuch-emacs libraries.
+
+Fix bug in calling `notmuch-mua-mail` with a non-nil RETURN-ACTION.
+
+Removed, inlined or renamed functions and variables:
+ `notmuch-address-locate-command`,
+ `notmuch-documentation-first-line`, `notmuch-folder`,
+ `notmuch-hello-trim', `notmuch-hello-versions` => `notmuch-version`,
+ `notmuch-remove-if-not`, `notmuch-search-disjunctive-regexp`,
+ `notmuch-sexp-eof`, `notmuch-split-content-type`, and
+ `notmuch-tree-button-activate`.
+
+Keymaps are no longer fset, which means they need to be referred to in
+define-key directly (without quotes). If your Emacs configuration has a
+keybinding like:
+ (define-key 'notmuch-show-mode-map "7" 'foo)
+you should change it to:
+ (define-key notmuch-show-mode-map "7" 'foo)
+
+Notmuch 0.31.4 (2021-02-18)
+===========================
+
+Library
+-------
+
+Fix include bug triggered by glib 2.67.
+
+Test
+----
+
+Fix race condition in T568-lib-thread.
+
+Notmuch 0.31.3 (2020-12-25)
+===========================
+
+Bindings
+--------
+
+Fix for exclude tags in notmuch2 bindings.
+
+Build
+-----
+
+Portability update for T360-symbol-hiding
+
+Library
+-------
+
+Fix for memory error in notmuch_database_get_config_list
+
+Notmuch 0.31.2 (2020-11-08)
+===========================
+
+Build
+-----
+
+Catch one more occurence of "version" in the build system, which
+caused the file to be regenerated in the release tarball.
+
+Notmuch 0.31.1 (2020-11-08)
+===========================
+
+Library
+-------
+
+Fix a memory initialization bug in notmuch_database_get_config_list.
+
+Build
+-----
+
+Rename file 'version' to 'version.txt'. The old file name conflicted
+with a C++ header for some compilers.
+
+Replace use of coreutils `realpath` in configure.
+
+Notmuch 0.31 (2020-09-05)
+=========================
+
+Emacs
+-----
+
+Notmuch now supports Emacs 27.1. You may need to set
+`mml-secure-openpgp-sign-with-sender` and/or
+`mml-secure-smime-sign-with-sender` to continue signing messages.
+