Release 0.20.28.

NEWS

@@ -1,4 +1,4 @@
-0.20.28	UNRELEASED
+0.20.28	2022-01-05
 
  * Fix hook test on Mac OSX / Linux when dulwich is
    not installed system-wide. (Jelmer Vernooij, #919)

dulwich/__init__.py

@@ -22,4 +22,4 @@
 
 """Python implementation of the Git file formats and protocols."""
 
-__version__ = (0, 20, 27)
+__version__ = (0, 20, 28)

setup.py

@@ -23,7 +23,7 @@ if sys.version_info < (3, 6):
         'For 2.7 support, please install a version prior to 0.20')
 
 
-dulwich_version_string = '0.20.27'
+dulwich_version_string = '0.20.28'
 
 
 class DulwichDistribution(Distribution):