The Cloud Development Kit for Terraform (CDKTF) 0.9 release introduces several key improvements to enhance its functionality and usability. With this version, developers can now write Terraform configurations in their preferred programming languages, including C#, Python, TypeScript, Java, and Go, while still benefiting from the full ecosystem of Terraform providers and modules. Cross-stack references enable referencing resources across stacks in a single application, making it easier to manage state management for multiple environments. Improved resources for providers and modules include better support for sets and lists, allowing for more efficient use of generated code bindings. Additionally, CDKTF 0.9 introduces a new command-line option for Terraform outputs, enabling easy integration with workflows. The release also includes other enhancements and bug fixes, as outlined in the CHANGELOG.