Gatsby ISR and Plugin Cache Invalidation: Choosing a Zero‑Downtime Update Strategy
Ensuring data freshness with Gatsby ISR during zero‑downtime migration Goal: update content in a small Gatsby site using Incremental Static Generation (ISR) so that only changed pages regenerate while the site remains served. Constraint: ISR regenerates HTML only; data source plugins continue to serve cached data unless they implement incremental fetching, a