JetBrains Amper build tool adds Compose Hot Reload

Amper also now supports the js, wasmJsand wasmWasi target platforms, though these application product types remain very basic for now, JetBrains said. Further, the jvm/app and android/app modules have been simplified to only support srcwhile  the @jvm qualifier is no longer permitted in module.yaml files.

Also introduced is a new, dedicated product type jvm/lib for JVM-only libraries, which offers the same benefits and better conveys intent, JetBrains said.

Announced October 3Amper 0.8.0 can be accessed from Girub. Updates to existing projects can be done by running ./amper update. For full support for the latest Amper features, developers can use the IntelliJ IDEA 2025.3 EAP IDE or a newer version.