update docs with namedtuple encoding to JSON object

1 files changed, 4 insertions, 1 deletions

diff --git a/index.rst b/index.rst
index b478e5c..2d49ef9 100644
--- a/index.rst
+++ b/index.rst
@@ -399,7 +399,7 @@ Encoders and decoders
    +-------------------+---------------+
    | Python            | JSON          |
    +===================+===============+
-   | dict              | object        |
+   | dict, namedtuple  | object        |
    +-------------------+---------------+
    | list, tuple       | array         |
    +-------------------+---------------+
@@ -414,6 +414,9 @@ Encoders and decoders
    | None              | null          |
    +-------------------+---------------+
 
+   .. versionchanged:: 2.2.0
+      Changed *namedtuple* encoding from JSON array to object.
+
    To extend this to recognize other objects, subclass and implement a
    :meth:`default` method with another method that returns a serializable object
    for ``o`` if possible, otherwise it should call the superclass implementation