TodoistTokenlessClient endpoints will be deprecated soon.

[AhmedZaki99]

It has been announced in the Todoist API mailing list that "registration" endpoints will be removed from the API by October 23, 2023.

This deprecation specifically affects the usage of our "user/register" and "user/delete" endpoints that have been available via our Sync API.

The endpoints in question have largely gone unused for quite some time and so as part of efforts to increase system stability and security, these will be removed by October 23, 2023.

This change will break TodoistTokenlessClient (typically making it useless) resulting in tests like UsersServiceTests.RegisterUpdateSettingsAndDeleteUser_Success to fail.

So, it would make sense to remove the TodoistTokenlessClient starting with the next major version.