Increased version to 4.0.0a

Smurf2-pluto · Smurf2-pluto · commit 1039f882b99f · 2024-02-05T11:58:24.000-07:00
diff --git a/polymorphic/__init__.py b/polymorphic/__init__.py
@@ -6,7 +6,7 @@
 Please see LICENSE and AUTHORS for more information.
 """
 
-VERSION = "3.1.0"
+VERSION = "4.0.0a"
 
 # version synonym for backwards compatibility
 __version__ = VERSION
