The CDK for Terraform 0.5 release introduces code generation from HCL and a new `cdktf watch` workflow designed for serverless workloads. The new `convert` command automatically translates existing HCL Terraform configurations to C#, Python, TypeScript, and Java, making it easier to apply the existing library of HCL Terraform content to CDK for Terraform. This feature enables users to convert full projects from HCL to other languages with support for future releases. Additionally, `cdktf watch` is a new experimental workflow that deploys changes and shows diffs as you edit code in a production-like environment, intended to be used in a production-like development environment and works in all supported languages.