add changelog entry for CustomCircuitOracle's evaluate_classically callback
@@ -18,6 +18,13 @@ Changelog](http://keepachangelog.com/en/1.0.0/).
[UNRELEASED](https://github.com/Qiskit/qiskit-aqua/compare/0.6.0...HEAD)
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+Added
+-----
+
+- Ability to create a `CustomCircuitOracle` object with a callback for `evaluate_classically`,
+ which a `Grover` object will now check for, upon initialization, on its provided oracle.
+
+
[0.6.0](https://github.com/Qiskit/qiskit-aqua/compare/0.5.5...0.6.0) - 2019-08-22
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