DOC: update what's new, RELEASE.rst

Author: y-p

RELEASE.rst

@@ -47,6 +47,7 @@ pandas 0.11.0
 
 **Improvements to existing features**
 
+  - Improved performance of dv.to_csv() by up to 10x in some cases. (GH3059_)
   - added ``blocks`` attribute to DataFrames, to return a dict of dtypes to
     homogeneously dtyped DataFrames
   - added keyword ``convert_numeric`` to ``convert_objects()`` to try to
@@ -185,6 +186,7 @@ pandas 0.11.0
 .. _GH3012: https://github.com/pydata/pandas/issues/3012
 .. _GH3029: https://github.com/pydata/pandas/issues/3029
 .. _GH3041: https://github.com/pydata/pandas/issues/3041
+.. _GH3059: https://github.com/pydata/pandas/issues/3039
 
 
 pandas 0.10.1

doc/source/v0.11.0.txt

@@ -229,6 +229,8 @@ API changes
 Enhancements
 ~~~~~~~~~~~~
 
+  - Improved performance of dv.to_csv() by up to 10x in some cases. (GH3059_)
+
   - Numexpr is now a :ref:`Recommended Dependencies <install.recommended_dependencies>`, to accelerate certain
     types of numerical and boolean operations
 
@@ -331,3 +333,4 @@ on GitHub for a complete list.
 .. _GH2806: https://github.com/pydata/pandas/issues/2806
 .. _GH2807: https://github.com/pydata/pandas/issues/2807
 .. _GH2918: https://github.com/pydata/pandas/issues/2918
+.. _GH3059: https://github.com/pydata/pandas/issues/3059