MAINT: Stable version (#2454)

codespell_lib/_codespell.py

diff --git a/codespell_lib/_codespell.py b/codespell_lib/_codespell.py
index 8a353b7..8cc7d50 100644
--- a/codespell_lib/_codespell.py
+++ b/codespell_lib/_codespell.py
@@ -36,7 +36,7 @@
 USAGE = """
 \t%prog [OPTIONS] [file1 file2 ... fileN]
 """
-VERSION = '2.2.dev0'
+VERSION = '2.2.0'
 
 supported_languages_en = ('en', 'en_GB', 'en_US', 'en_CA', 'en_AU')
 supported_languages = supported_languages_en