LangSmith is now offering new Access Control features to help large engineering teams manage access to their resources, including Role Based Access Control (RBAC) and API Key updates. With RBAC, administrators can assign custom roles to users with granular permissions, reducing the risk of vulnerabilities by limiting user access to only necessary tasks. The new API Keys feature includes Personal Access Tokens for individual users and Service Keys for services that require administrator privileges, allowing for more secure access control. These features are designed to help enterprises manage access to their resources and improve overall security.