Merge pull request #108 from mpacer/release_4_4

Release 4.4

docs/changelog.rst

@@ -9,15 +9,17 @@ Changes in nbformat
 
 `4.4 on GitHub <https://github.com/jupyter/nbformat/milestone/9>`__
 
-- Explicitly state that metadata fields can be ignored
-- Introduce official jupyter namespace inside metadata (``metadata.jupyter``)
+- Explicitly state that metadata fields can be ignored.
+- Introduce official jupyter namespace inside metadata (``metadata.jupyter``).
 - Introduce ``source_hidden`` and ``outputs_hidden`` as official front-end
   metadata fields to indicate hiding source and outputs areas. **NB**: These
   fields should not be used to hide elements in exported formats.
-- Fix ending the redundant storage of signatures in the signature database
+- Fix ending the redundant storage of signatures in the signature database. 
 - :func:`nbformat.validate` can be set to not raise a ValidationError if
-  additional properties are included
-- Fix for errors with connecting and backing up the signature database
+  additional properties are included. 
+- Fix for errors with connecting and backing up the signature database.
+- Dict-like objects added to NotebookNode attributes are now transformed to be
+  NotebookNode objects; transformation also works for `.update()`.
 
 
 4.3
@@ -32,8 +34,8 @@ Changes in nbformat
   as well as unicode.
 - Fix for calling :func:`nbformat.validate` on an empty dictionary.
 - Fix for running the tests where the locale makes ASCII the default encoding.
-- Include nbformat-schema files (v3 and v4) in nbformat-schema npm package
-- Include configuration for appveyor's continuous integration service
+- Include nbformat-schema files (v3 and v4) in nbformat-schema npm package.
+- Include configuration for appveyor's continuous integration service.
 
 4.2
 ===