The `folder:` search prefix now requires an exact match
The `folder:` prefix has been changed to search for email messages
- by the exact, case sensitive maildir or MH folder name. The new
- behaviour allows for more accurate mail folder based searches, and
- should lead to less surprising results than the old behaviour. Users
- are advised to see the `notmuch-search-terms` manual page for
- details, and review how the change affects their existing `folder:`
- searches.
+ by the exact, case sensitive maildir or MH folder name. Wildcard
+ matching (`folder:foo*`) is no longer supported. The new behaviour
+ allows for more accurate mail folder based searches, makes it
+ possible to search for messages in the top-level folder, and should
+ lead to less surprising results than the old behaviour. Users are
+ advised to see the `notmuch-search-terms` manual page for details,
+ and review how the change affects their existing `folder:` searches.
There is a new `path:` search prefix.