• Add more index types.
• Add force_index, use_index to queryset.
• Fix F in update error with update_fields.
• Make delete query work with limit and order_by. (#697)
• Filter backward FK fields with IS NULL and NOT IS NULL filters (#700)
• Add select_for_update in update_or_create. (#702)
• Add Model.select_for_update.
• Add __search full text search to queryset.