DOCS-1254 powerOf2 textindex and DOCS-1247 geoWithin in agg

Signed-off-by: Sam Kleinman <[email protected]>

Author: kay-kim

source/core/indexes.txt

@@ -796,6 +796,9 @@ the supported languages.
 ``text`` indexes have the following storage requirements and
 performance costs:
 
+- Text indexes change the space allocation method for the documents in
+  the collection to :collflag:`usePowerOf2Sizes`.
+
 - Text indexes can be large. They contain one index entry for each
   unique post-stemmed word in each indexed field for each document
   inserted.

source/reference/aggregation/match.txt

@@ -87,7 +87,7 @@ $match (aggregation)
 
    .. versionadded:: 2.4
       :pipeline:`$match` queries can support the
-      geospatial :mongodb:operator:`$within` operations.
+      geospatial :mongodb:operator:`$geoWithin` operations.
 
    .. warning::
 

source/reference/operator/geoWithin.txt

@@ -11,8 +11,8 @@ $geoWithin
    The :operator:`$geoWithin` operator is a geospatial query operator
    that queries for a defined point, line or shape that exists entirely
    within another defined shape. When determining inclusion, MongoDB
-   considers the border of a shape to be part of the shape (subject to
-   the precision of floating point numbers).
+   considers the border of a shape to be part of the shape, subject to
+   the precision of floating point numbers.
 
    The :operator:`$geoWithin` operator queries for inclusion in a
    :term:`GeoJSON` polygon or a shape defined by legacy coordinate
@@ -26,6 +26,11 @@ $geoWithin
    The ``2dsphere`` and ``2d`` indexes both support the
    :operator:`$geoWithin` operator.
 
+   .. versionchanged:: 2.2.3
+      :operator:`$geoWithin` no longer requires a geospatial
+      index. However, a geospatial index will improve query
+      performance.
+
    If querying for inclusion in a GeoJSON polygon on a sphere, pass the
    polygon to :operator:`$geoWithin` through the :operator:`$geometry`
    operator. Coordinates of a polygon are an array of LinearRing
@@ -80,7 +85,7 @@ $geoWithin
                                   { <shape operator> : <coordinates>
                             } } } )
 
-   For the syntax for a shape operator, see:
+   For the syntax of a shape operator, see:
 
      - :operator:`$box`
 
@@ -93,5 +98,4 @@ $geoWithin
 .. operator:: $within
 
    .. deprecated:: 2.4
-      In 2.4, :operator:`$geoWithin` replaces :operator:`$within`.
- 
+      :operator:`$geoWithin` replaces :operator:`$within` in MongoDB 2.4.

source/release-notes/2.4.txt

@@ -6,7 +6,7 @@ Release Notes for MongoDB 2.4 (2.3 Development Series)
 
 MongoDB 2.4 is currently in development, as part of the 2.3
 development release series. While 2.3-series releases are currently
-available, these versions of MongoDB, including the 2.4 release 
+available, these versions of MongoDB, including the 2.4 release
 candidate builds, are for *testing only and
 not for production use*.
 
@@ -91,7 +91,10 @@ query operator for queries on GeoJSON data:
 
 The operators use the new :operator:`$geometry` parameter.
 
-For more information, see:
+Additionally, :operator:`$geoWithin` instead no longer requires a
+geospatial index.
+
+For more information on geospatial indexes in 2.4, see:
 
 - :doc:`/applications/geospatial-indexes`
 
@@ -466,9 +469,12 @@ MongoDB 2.4 introduces a number of additional functionality and
 improved performance for the :doc:`Aggregation Framework
 </applications/aggregation>`. Consider the following additions in 2.4:
 
-- :agg:pipeline:`$match` queries now support the :operator:`$within`
+- :agg:pipeline:`$match` queries now support the :operator:`$geoWithin`
   operator for bounded geospatial queries.
 
+- The new :agg:pipeline:`$geoNear` pipeline stage to support
+  geospatial queries.
+
 - :agg:group:`$min` operator only considers non-null and existing field
   values. If all the values for a field are ``null`` or are missing,
   the operator returns ``null`` for the minimum value.
@@ -482,6 +488,3 @@ improved performance for the :doc:`Aggregation Framework
   portion of a date.
 
 - The new :agg:expression:`$concat` operator concatenates array of strings.
-
-- The new :agg:pipeline:`$geoNear` pipeline stage to supports
-  geospatial queries.