update HISTORY

Author: wwwjfy

HISTORY.rst

@@ -45,9 +45,12 @@ won't be called with any ``setattr(child, 'parent', ...)`` at all. (If you need
 Please note, it is deprecated to disable ``none_as_none``, and disabling will
 be removed in GINO 1.0.
 
-0.8.4 (TBD)
+0.8.4 (2019-11-09)
 ^^^^^^^^^^^
 
+* Better loader support for models in subqueries (#573 #585)
+* Allowed ``__tablename__`` to be a ``declared_attr`` (#579 #582)
+* Fixed Sanic 19.9.0 compatibility (#569)
 * Added one() and one_or_none() (Contributed by Ilaï Deutel in #577)
 * Improved Starleet extension compatibility (Contributed by Jim O'Brien in #538)
 * Fixed Starlette connection release during exceptions issue (Contributed by qulaz in #533)