Release 4.0.0

- using semantic versioning, so not version 4.0...

CHANGES.md

@@ -1,14 +1,10 @@
 # pyfakefs Release Notes
 The released versions correspond to PyPi releases.
 
-## Version 4.0 (as yet unreleased)
+## [Version 4.0.0](https://pypi.python.org/pypi/pyfakefs/4.0.0)
 
-_Note:_ pyfakefs 4.0 is planned for release at the beginning of 2020. As
-pyfakefs 4.0 is a major release, we are giving you advance notice of
-the proposed changes so you can be ready.
-
-  * pyfakefs 4.0 drops support for Python 2.7. If you still need
-    Python 2.7, you can continue to use pyfakefs 3.7. 
+  * pyfakefs 4.0.0 drops support for Python 2.7. If you still need
+    Python 2.7, you can continue to use pyfakefs 3.7.x. 
 
 #### Changes
   * Removed Python 2.7 and 3.4 support (see [#492](../../issues/492))

README.md

@@ -18,6 +18,9 @@ This file provides general usage instructions for pyfakefs.  There is more:
     released on PyPi
   * The [Development documentation](http://jmcgeheeiv.github.io/pyfakefs/master)
     contains the same documentation for the current master branch
+  * The [Release 3.7 documentation](http://jmcgeheeiv.github.io/pyfakefs/release37)
+    contains usage documentation for the last version of pyfakefs 
+    supporting Python 2.7
   * The [Release 3.3 documentation](http://jmcgeheeiv.github.io/pyfakefs/release33)
     contains usage documentation for the last version of pyfakefs 
     supporting Python 2.6, and for the old-style API (which is still 

docs/conf.py

@@ -66,9 +66,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '4.0'
+version = '4.0.0'
 # The full version, including alpha/beta/rc tags.
-release = '4.0dev'
+release = '4.0.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

pyfakefs/fake_filesystem.py

@@ -116,7 +116,7 @@
 
 __pychecker__ = 'no-reimportself'
 
-__version__ = '4.0'
+__version__ = '4.0.0'
 
 PERM_READ = 0o400  # Read permission bit.
 PERM_WRITE = 0o200  # Write permission bit.