Changes were applied to improve security. See ADV-2020-001, ADV-2020-003, ADV-2020-004, ADV-2020-005, ADV-2020-008, ADV-2020-009, and ADV-2020-010 in Security Bulletins for more details.
A security improvement was made which requires secondary active directory domains be approved, for more information see .
Single backgrounder process intermittently hit deadlock on shutdown during periodic restart and entered a bad state.
If there is an increase in settings like nprocs and other process limits on a Linux system running Tableau, then there should be an increase in kernel.pid_max and vm.max_map_count to avoid native thread errors.
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