How does Vite 7.0 improve build speed and developer experience compared to previous versions?

Vite 7.0 significantly improves build speed and developer experience by introducing a new Rust-based bundler named Rolldown, which delivers faster builds and lower memory usage.

Compared to previous versions, Vite 7 reduces cold start times by about 45%, accelerates production build times up to 3-16x depending on the project, and provides more stable and faster hot module replacement (HMR). It enhances developer experience with improved DevTools integration and modern plugin APIs for easier debugging and extensibility. The Rust-powered Rolldown bundler reduces memory usage by up to 100x in large projects, ensuring more reliable and faster builds. Additionally, Vite 7 introduces a full-bundle development mode for consistent dev and production bundling, reduces network overhead, and upgrades baseline browser targeting and Node.js requirements to align with modern JavaScript standards, making it a future-proof choice for frontend development.