Declarative partial updates
Summary
Chrome's Declarative Partial Updates introduces out-of-order streaming HTML APIs and new static and streaming insertion methods to deliver and update content more efficiently. The article covers the template-based processing instructions, the range of APIs (setHTML, streamHTML, etc.), polyfills, and safety considerations around sanitization and trusted types, plus potential use cases like island architecture and progressive content loading. It also notes how to enable experimental features via a Chrome flag and points to related explainer material.