During the past month, the following content has been added or improved:
- We added and defined History Shard as a core term. 
- We updated information about Namespaces and Retention Periods. 
- We added a section on how to Manage Namespaces in the Developer’s guide. 
- We added a reference of metrics that are emitted from a Temporal Cluster. 
- We published the “next version” of Temporal’s CLI. The future name of the CLI is yet to be determined, but the functionality is available to use as tctl v2.0.0-beta. Both tctl v1.17 and tctl version-next docs are available.