added whatsnew

pandas-dev · Nov 25, 2017 · 5fa71e1 · 5fa71e1
1 parent f50ebf4
commit 5fa71e1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/doc/source/whatsnew/v0.21.1.txt b/doc/source/whatsnew/v0.21.1.txt
@@ -103,7 +103,7 @@ Groupby/Resample/Rolling
 - Bug in ``DataFrame.resample(...).apply(...)`` when there is a callable that returns different columns (:issue:`15169`)
 - Bug in ``DataFrame.resample(...)`` when there is a time change (DST) and resampling frequecy is 12h or higher (:issue:`15549`)
 - Bug in ``pd.DataFrameGroupBy.count()`` when counting over a datetimelike column (:issue:`13393`)
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+- Bug when grouping by a single column and aggregating with a class like`list` or `tuple` (:issue:`18079`)
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