Compose Multiplatform lets you build beautiful UI with idiomatic Kotlin for Android, iOS, Desktop, and Web apps! It’s stable, production-ready, constantly evolving, and it already powers the experiences of millions of users every day. Its declarative nature also makes it a perfect fit for building cross-platform apps in the age of agentic development. As a framework that can be adopted incrementally rather than requiring a full rewrite, you can start using it risk-free even in existing apps. Your Android skills seamlessly transfer to other platforms, with tools like Navigation 3 already available for Compose Multiplatform. In this talk, we’ll take a hands-on look at everything that’s new and exciting. iOS improvements like faster rendering, enhanced input handling, and better interop that enables the use of Liquid Glass elements. Web features including accessibility, interop, and other improvements. And of course, we’ll discuss the developer experience: with a unified @Preview system, a mature Hot Reload solution, and a thriving ecosystem that covers all important areas of modern app development.