A previously requested API change is that `notmuch_database_reopen` is
now exposed (and generalized).
+The previously severe slowdowns from large numbers calls to
+notmuch_database_remove_message or notmuch_message_delete in one
+session has been fixed.
+
As always, the canonical source of API documentation is
`lib/notmuch.h`, or the doxygen formated documentation in `notmuch(3)`
The `notmuch config set` subcommand gained a `--database` argument to
specify that the database should be updated, rather than a config file.
+The speed of `notmuch new` and `notmuch reindex` in dealing with large
+numbers of mail file deletions is significantly improved.
+
+Emacs
+-----
+
+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+lambda expressions have been replaced by named commands (symbols), to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`.
+
Notmuch 0.31.4 (2021-02-18)
===========================