Bump version and update history

Author: timsavage

HISTORY

@@ -1,3 +1,24 @@
+2.10rc1
+=======
+
+Changes
+-------
+
+- Simplify the internals of the Resource metaclass to make it easier to understand
+  and maintain. Greater sharing of code between Resource and AnnotatedResource
+
+  This change has not effect on the public API.
+
+  Removes some compatibility code with versions prior to Python 3.8.
+
+- Support shadowing of fields on a resource. To enabled this feature set the
+  ``allow_field_shadowing`` meta option to ``True``. This allows for fields to be
+  overridden on a resource.
+
+  ResourceObjects now includes a shadow_fields listing all fields shadowed by this
+  resource.
+
+
 2.9
 ===
 

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "odin"
-version = "2.9.0"
+version = "2.10rc1"
 description = "Data-structure definition/validation/traversal, mapping and serialisation toolkit for Python"
 authors = ["Tim Savage <tim@savage.company>"]
 license = "BSD-3-Clause"