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* Breaking Change: The EdxRestApiClient` has been deprecated and removed in this release.
* Breaking Change: Dropping Python 3.8 support
* We no longer test with ubuntu 20.04 and test with whatever is the latest
ubuntu supplied by the ``ubuntu-latest`` github action. Not actually a
breaking change but a change in expectations that we're noting here. We
believe there is no code tied to the OS version in this library.