Lerna, a tool for managing monorepos, has undergone significant improvements since its acquisition by Nrwl, the company behind Nx. With the release of Lerna v6, notable enhancements include integration with Nx, default caching, and remote caching via Nx Cloud, which collectively improve build speed and resource efficiency. Lerna now supports pnpm workspaces, providing better dependency management, and includes Prettier integration for consistent code formatting. The introduction of dynamic terminal output and a VS Code extension enhances usability by simplifying workspace navigation and task tracking. New commands like `lerna repair` streamline updates, ensuring configurations are up-to-date, while the tool's evolution makes it more appealing for large-scale monorepo projects by reducing redundancy and improving the developer experience.