TanStack Table's "boring" refactor cut memory 90% and tripled its row ceiling
TanStack Table's biggest v9 performance win came not from its new plugin system but from a quieter behind-the-scenes refactor. Benchmarking shows V9 uses up to ~90% less retained JS heap on million-row tables, pushing the practical ceiling before browsers hit 4GB from ~1.5M to roughly 15M rows. The trick turns out to be a simple, largely downside-free pattern the article argues other libraries could borrow.