DOC: document v0.11.2 release

Author: shoyer

doc/whats-new.rst

@@ -13,13 +13,13 @@ What's New
     import xarray as xr
     np.random.seed(123456)
 
-.. _whats-new.0.11.1:
+.. _whats-new.0.11.2:
 
-v0.11.1 (29 December 2018)
---------------------------
+v0.11.2 (2 January 2019)
+------------------------
 
-This minor release includes a number of enhancements and bug fixes, and two
-(slightly) breaking changes.
+Removes inadvertently introduced setup dependency on pytest-runner
+(:issue:`2641`). Otherwise, this release is exactly equivalent to 0.11.1.
 
 .. warning::
 
@@ -31,6 +31,14 @@ This minor release includes a number of enhancements and bug fixes, and two
   - `Python 3 Statement <http://www.python3statement.org/>`__
   - `Tips on porting to Python 3 <https://docs.python.org/3/howto/pyporting.html>`__
 
+.. _whats-new.0.11.1:
+
+v0.11.1 (29 December 2018)
+--------------------------
+
+This minor release includes a number of enhancements and bug fixes, and two
+(slightly) breaking changes.
+
 Breaking changes
 ~~~~~~~~~~~~~~~~