**Changes:** - `Client.unlock_security_access` now have a parameter to pass down the RequestSeed data (securityAccessDataRecord) to the `request_seed ` method. Fixes 177
1.20.0
**New feature**
-164 - Support for Authentication service (0x29). Credits: geynis
1.19.0
New features - Supports waiting on negative responses when SuppressPositiveResponse bit is set (174).
Bug fixes: - Fixed the list of supported negatives response code for TransferExit (173). Credits: mikisama
1.18.1
**Changes**: - 162 - Client attach a reference to the request in the response object.
**Bug fix** : - 161 : Bad static type in `client.send_request()` signature
1.17.2
**Bugfix**
- Fixed 157, Request and response decoding may fail depending on module loading order
1.17.1
**Bugfix** - Fixed compatibility issue with Python 3.7 introduced by `TypedDict` usage in udsoncan V1.17