* agent: some check types now support configuring a number of consecutive failure and success before the check status is updated in the catalog. [[GH-5739](https://github.com/hashicorp/consul/pull/5739)]
* server: ensure the primary datacenter and ACL datacenter match [[GH-6634](https://github.com/hashicorp/consul/issues/6634)]
* sdk: ignore panics due to stray goroutines logging after a test completes [[GH-6632](https://github.com/hashicorp/consul/issues/6632)]
* agent: allow mesh gateways to initialize even if there are no connect services registered yet [[GH-6576](https://github.com/hashicorp/consul/issues/6576)]