switch append to concat
@@ -818,7 +818,7 @@ class _FeatureTable:
to_append : pd.DataFrame
The features to append.
"""
- self._values = self._values.append(to_append, ignore_index=True)
+ self._values = pd.concat([self._values, to_append], ignore_index=True)
def remove(self, indices: Any) -> None:
"""Remove rows from this by index.
