[Performance improvements](https://github.com/wekan/wekan/pull/2214), thanks to justinr1234:

- New indexes for queries that were missing an index;
- Bulk querying documents to reduce the number of mongo queries when loading a board;
- Ensure oplog is being used to query the database by providing a `sort` key when `limit` is used querying the `boards` collection.

CHANGELOG.md

@@ -1,3 +1,13 @@
+# Upcoming Wekan release
+
+This release adds the following [performance improvements](https://github.com/wekan/wekan/pull/2214), thanks to justinr1234:
+
+- New indexes for queries that were missing an index;
+- Bulk querying documents to reduce the number of mongo queries when loading a board;
+- Ensure oplog is being used to query the database by providing a `sort` key when `limit` is used querying the `boards` collection.
+
+Thanks to above GitHub users for their contributions.
+
 # v2.31 2019-02-28 Wekan release
 
 This release fixes the following bugs related to [Template features](https://github.com/wekan/wekan/issues/2209), thanks to GitHub user andresmanelli: