Tb's latest release is 78.3.1
There is currently a beta in testing. However I have been unable to test the calendar invite functions. If you wish to test this beta and provide feedback please visit the github repository.
Tb's latest release is 78.2.2
There is currently some work being done in the Experiment-wrapper-API branch on Github. When it will be available I am unable to say
*Edit: The new version is currently in testing. I hope to upload a finalized version late this week