Terraform 1.11 introduces write-only arguments to managed resources, allowing users to securely pass sensitive data directly to resources without exposing it in the state file or plan file. This enhancement strengthens security workflows involving sensitive data by keeping secrets secure across input variables and output values. The new feature is available for several managed resources, including AWS, Azure, Google Cloud, Kubernetes, Helm, Juniper, Palo Alto Networks, and Fortinet providers. Terraform 1.11 also includes upgrades to the test framework, including a new `state_key` attribute, support for mocked or overridden values during unit tests, and the ability to create JUnit XML reports. Users can download Terraform 1.11, sign up for a free HCP Terraform account, and get hands-on with tutorials to start using the latest version.