Release 0.20.21.

NEWS

@@ -1,4 +1,4 @@
-0.20.21	UNRELEASED
+%(version)s	%(date)s
 
  * Add basic support for a GcsObjectStore that stores
    pack files in gcs. (Jelmer Vernooij)

dulwich/__init__.py

@@ -22,4 +22,4 @@
 
 """Python implementation of the Git file formats and protocols."""
 
-__version__ = (0, 20, 20)
+__version__ = (0, 20, 21)

setup.py

@@ -23,7 +23,7 @@ if sys.version_info < (3, 5):
         'For 2.7 support, please install a version prior to 0.20')
 
 
-dulwich_version_string = '0.20.20'
+dulwich_version_string = '0.20.21'
 
 
 class DulwichDistribution(Distribution):