If you make user visible changes, you should add an entry to the
[`NEWS`](http://git.notmuchmail.org/git/notmuch/blob/HEAD:/NEWS) file.
+## Update command-line completion
+
+If you modify or add new features to the Notmuch command-line tools, it
+would be a nice bonus if you also updated the Notmuch command-line
+completion scripts under the `completion` directory of the Notmuch
+source. Not required, but nice to have, and definitely can be done
+afterwards.
+
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