Bump to 0.7.2 and update CHANGELOG for release

Author: dbanty

CHANGELOG.md

@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 0.7.2 - 2020-12-08
+### Fixes
+- A bug in handling optional properties that are themselves models (introduced in 0.7.1) (#262). Thanks @packyg!
+
 ## 0.7.1 - 2020-12-08
 ### Additions
 - Support for additionalProperties attribute in OpenAPI schemas and "free-form" objects by adding an `additional_properties` attribute to generated models. **COMPATIBILITY NOTE**: this will prevent any model property with a name that would be coerced to "additional_properties" in the generated client from generating properly (#218 & #252). Thanks @packyg!

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "openapi-python-client"
-version = "0.7.1"
+version = "0.7.2"
 description = "Generate modern Python clients from OpenAPI"
 repository = "https://github.com/triaxtec/openapi-python-client"
 license = "MIT"