The Journey to Compose Hot Reload 1.0.0 | The Kotlin Blog

Compose Hot Reload, now at its stable release of version 1.0.0, is a tool integrated with Compose Multiplatform starting from version 1.10, designed to facilitate the dynamic updating of applications during development with minimal user intervention. It allows developers to make changes to their code, recompile, and see these changes reflected in the UI without restarting the application, thanks to its integration with the JetBrains Runtime and DCEVM for dynamic class redefinition. The tool uses a combination of custom Java agents, bytecode analysis, and orchestration protocols to manage state and code updates efficiently, providing a seamless development experience. With features like a floating toolbar, in-app notifications, and IDE integration, developers receive real-time feedback and control over the reload process. Despite the complexities involved, including challenges with bytecode consistency and the limitations of the JetBrains Runtime, Compose Hot Reload successfully enhances the developer's workflow by offering intuitive and rapid UI updates.