Vite 8.0 is out!

Since its earliest versions, Vite relied on two separate bundlers to serve different needs. esbuild handled fast compilation during development (dependency pre-bundling and TypeScript/JSX transforms) that made the dev experience feel instant. Rollup handled production bundling, chunking, and optimization, with its rich plugin API powering the entire Vite plugin ecosystem. This dual-bundler approach served Vite well for years. It allowed us to focus on developer experience and orchestration rather than reinventing parsing and bundling from scratch. But it came with trade-offs. Two separate transformation pipelines meant two separate plugin systems, and an increasing amount of glue code needed to keep the two pipelines in sync. Edge cases around inconsistent module handling accumulated over time, and every alignment fix in one pipeline risked introducing differences in the other.