update changelog

NicolasHug · Oct 1, 2017 · 656364b · 656364b
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commit 656364b
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -21,6 +21,13 @@ Fixes
 * Prediciont.__str__() when r_ui is None
 * GridSearch for dict parameters is now working as expected
 
+API Changes
+-----------
+
+* param_grid for GridSearch is now slightly different for dict parameters (see
+  note on [the
+  docs](http://surprise.readthedocs.io/en/stable/getting_started.html#tune-algorithm-parameters-with-gridsearch)).
+
 VERSION 1.0.3
 =============