Prepare for 2.2.1 release

CHANGES.md

@@ -1,6 +1,14 @@
 Changelog
 =========
 
+2.2.1
+-----
+
+* Fix ``--user-only`` and ``--freeze`` flags which were broken after
+  the last release.
+
+* Fix for compatibility with new version of ``graphviz`` (>= 0.18.1).
+
 2.2.0
 -----
 

README.rst

@@ -264,7 +264,10 @@ The dependency graph can also be visualized using `GraphViz
     $ pipdeptree --graph-output svg > dependencies.svg
 
 Note that ``graphviz`` is an optional dependency ie. required only if
-you want to use ``--graph-output``.
+you want to use ``--graph-output``. If the version of ``graphviz``
+installed in the env is older than 0.18.1, then a warning will be
+displayed about upgrading ``graphviz``. Support for older versions of
+graphviz will be dropped soon.
 
 Since version ``2.0.0b1``, ``--package`` and ``--reverse`` flags are
 supported for all output formats ie. text, json, json-tree and graph.

pipdeptree.py

@@ -30,7 +30,7 @@ except ImportError:
 # from graphviz import parameters
 
 
-__version__ = '2.2.0'
+__version__ = '2.2.1'
 
 
 flatten = chain.from_iterable