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.
+
Notmuch 0.20.2 (2015-06-27)
===========================