K81R's App Router adoption revisited the universal JavaScript problem by making browser responsibility explicit at the component boundary.
#nextjs
Next.js 13.4 marked the core App Router stable, so K81R began a bounded adoption while keeping URLs, authority, and rollback explicit.
Next.js 13 made the new app directory compelling in October 2022; P6X4 evaluated it as beta infrastructure instead of rewriting its stable routes on announcement day.