2d coords

docs/iris/src/_templates/index.html

@@ -134,7 +134,7 @@
         <span class="linkdescr">extra information on specific technical issues</span></p>
     </li>
     <li>
-        <p class="biglink"><a class="biglink" href="whatsnew/2.1.html">What's new in Iris 2.1?</a><br/>
+        <p class="biglink"><a class="biglink" href="whatsnew/2.2.html">What's new in Iris 2.2?</a><br/>
         <span class="linkdescr">recent changes in Iris's capabilities</span></p>
     </li>
 	</ul>

docs/iris/src/_templates/layout.html

@@ -37,7 +37,7 @@
     </a>
     <div class="strapline">
       <h1>
-          Iris <span class="version">v2.1</span>
+          Iris <span class="version">v2.2</span>
       </h1>
       <p>
          A powerful, format-agnostic, community-driven Python library for analysing and

docs/iris/src/whatsnew/2.2.rst

@@ -0,0 +1,35 @@
+What's New in Iris 2.2.0
+************************
+
+:Release: 2.2.0a0
+:Date:
+
+
+This document explains the new/changed features of Iris in the alpha release
+of version 2.2.0
+(:doc:`View all changes <index>`).
+
+
+Iris 2.2.0 Features
+===================
+.. _showcase:
+
+.. admonition:: 2-Dimensional Coordinate Plotting
+
+  The iris plot functions :func:`~iris.plot.pcolor` and
+  :func:`~iris.plot.pcolormesh` now accommodate the plotting of 2-dimensional
+  coordinates as well as 1-dimensional coordinates.
+
+  To enable this feature, each coordinate passed in for plotting will be
+  automatically checked for contiguity.  Coordinate bounds must either be
+  contiguous, or the cube's data must be masked at the discontiguities in
+  order to avoid plotting errors.
+
+  The iris plot functions :func:`iris.plot.quiver` has been added, and this
+  also works with 2-dimensional plot coordinates.
+
+.. admonition:: 2-Dimensional Grid Vectors
+
+  The iris functions :func:`iris.analysis.cartography.gridcell_angles` and
+  :func:`iris.analysis.cartography.rotate_grid_vectors` have been added,
+  allowing you to convert gridcell-oriented vectors to true-North/East ones.

docs/iris/src/whatsnew/index.rst

@@ -9,6 +9,7 @@ Iris versions.
 .. toctree::
    :maxdepth: 2
 
+   2.2.rst
    2.1.rst
    2.0.rst
    1.13.rst

lib/iris/__init__.py

@@ -121,7 +121,7 @@ def callback(cube, field, filename):
 
 
 # Iris revision.
-__version__ = '2.2.0dev0'
+__version__ = '2.2.0a0'
 
 # Restrict the names imported when using "from iris import *"
 __all__ = ['load', 'load_cube', 'load_cubes', 'load_raw',