Pulumi enhances infrastructure development by allowing the use of programming languages' best features and offering compatibility with existing development environments. With the latest Node.js SDK release, Pulumi now supports flexible TypeScript version selection, including versions from 3.8 to 5.4. This update allows developers to easily use the latest TypeScript features without additional build steps, ensuring maximum flexibility and confidence in program behavior. Pulumi templates have been updated to incorporate the newest TypeScript version, and adding TypeScript as a dependency is optional, which benefits projects using monorepos. The SDK maintains backward compatibility by providing bundled versions of TypeScript 3.8 and ts-node 7, which are used if not already installed. An example demonstrates how TypeScript's Template Literal Types can enforce naming conventions during type checking, illustrating the advanced capabilities now available in Pulumi projects.