Streamline development and deployment of large-scale projects with ISR. Incremental Static Regeneration (ISR) dramatically reduces build times, allowing developers to deliver faster changes and better site performance. With Next.js 12.1, we’ve now introduced  on-demand ISR , our most requested feature by developers shipping large-scale projects. Bryce Kalow, a senior web engineer at HashiCorp, met with us to explain how HashiCorp's engineers use ISR and on-demand ISR to iterate quickly—while maintaining flexible sites and apps. What is ISR? How HashiCorp uses ISR Try on-demand ISR Link to heading What is ISR?  ISR was introduced in Next.js 9.5 and is one of the rendering strategies available to Next.js developers. It allows you to rerun getStaticProps after your build has completed. This offers much more flexibility than traditional static applications. Enterprises especially favor ISR for building large sites and keeping content fresh and updated.…