* [372](https://github.com/stripe/stripe-python/pull/372) Add only changed values to `_unsaved_values` in `StripeObject` * [375](https://github.com/stripe/stripe-python/pull/375) Use a custom JSON encoder to handle `datetime` objects when serializing `StripeObject`s
1.75.0
* [369](https://github.com/stripe/stripe-python/pull/369) Make custom actions on various resources (e.g. `Account.reject`) more consistent with other APIs
1.74.0
* [368](https://github.com/stripe/stripe-python/pull/368) Remove API that allowed the creation of new disputes (this was an erroneous addition; it never worked because the API would not allow it)
1.73.0
* [364](https://github.com/stripe/stripe-python/pull/364) Switch to vendored version of the `six` package for compatibility between Python 2 and 3
1.72.0
* [361](https://github.com/stripe/stripe-python/pull/361) Support for exchange rates APIs