It took me quite some time to find the option to create a cluster in High Concurrency mode. It was hidden in the new UI.

What should be the way to access the data with TAC?

What is the equivalent mode to work with TAC ?

Does it mean that we are being pushed to use the Unity Catalog? I guess this is the way, but at the moment there are some limitations with Unit Catalog - like DLT is not supported.

The documentation page mentions:

Table ACL only and Passthrough only, both as Legacy, but I cannot see those options in my UI.

https://docs.databricks.com/clusters/configure.html#cluster-mode

It's confusing, both differences in the UI and not up-to-date documentation I guess.

The main question is should I forget about using TAC and go with Unity Catalog with the new deployment?