Added
- Support for `Deep Freeze` (XLS-77d)
- Support for `PermissionedDomains` (XLS-80)
- Support `AMMClawback` amendment (XLS-73d)
- Support for the `simulate` RPC ([XLS-69](https://github.com/XRPLF/XRPL-Standards/tree/master/XLS-0069d-simulate))
Fixed
- `Sign`, `SignFor`, and `SignAndSubmit` methods now properly handle WebSocket clients