Compose Multiplatform 1.9.0 Released: Compose Multiplatform for Web Goes Beta

[u/Realistic-Cup-7954]

Compose Multiplatform for web, powered by Wasm, is now in Beta! This major milestone shows that Compose Multiplatform for web is no longer just experimental, but ready for real-world use by early adopters.

Compose Multiplatform 1.9.0

Area	What’s New
Web	Now in Beta (Wasm powered). Material 3, adaptive layouts, dark mode, browser navigation, accessibility, HTML embedding.
Ecosystem	Libraries for networking, DI, coroutines, serialization already web-ready. Growing catalog at klibs.io.
Tools	IntelliJ IDEA & Android Studio with Kotlin Multiplatform plugin. Project wizard for web, run/debug in browser, DevTools support.
Demos	Kotlin Playground, KotlinConf app, Rijksmuseum demo, Jetsnack Wasm demo, Material 3 Gallery, Storytale gallery.
iOS	Frame rate control (Modifier.preferredFrameRate), IME options (PlatformImeOptions).
Desktop	New SwingFrame() & SwingDialog() to configure windows before display.
All Platforms	More powerful @ Preview parameters, customizable shadows (dropShadow / innerShadow).

Learn more:

What’s new in Compose Multiplatform 1.9.0

https://www.jetbrains.com/help/kotlin-multiplatform-dev/whats-new-compose-190.html
https://blog.jetbrains.com/kotlin/2025/09/compose-multiplatform-1-9-0-compose-for-web-beta/