diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 63e6c53..b4d3528 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -5,8 +5,8 @@ Release History
 ----------------------
 
 * unicode is now supported. By default UTF-8 encoding is used. UTF-32LE can also
-  be used to hide non-ASCII characters. UTF-8 is the default choice since it is
-  possible to hide longer messages with it.
+  be used to hide non-ASCII characters. UTF-8 (8 bits) is the default choice
+  since it is possible to hide longer messages with it.
 * improved checks with type hints.
 
 0.6.9 (2017-03-10)
diff --git a/docs/conf.py b/docs/conf.py
index 2623d4a..c75e2a4 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -48,9 +48,9 @@ copyright = u'2012-2017, Cédric Bonhomme'
 # built documents.
 #
 # The short X.Y version.
-version = '0.6'
+version = '0.7'
 # The full version, including alpha/beta/rc tags.
-release = '0.6.9'
+release = '0.7'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.