# sdk > Tool for managing parallel versions of multiple Software Development Kits. > Supports Java, Groovy, Scala, Kotlin, Gradle, Maven, Vert.x and many others. > More information: . - Install an SDK version: `sdk install {{sdk_name}} {{sdk_version}}` - Use a specific SDK version for the current terminal session: `sdk use {{sdk_name}} {{sdk_version}}` - Show the stable version of any available SDK: `sdk current {{sdk_name}}` - Show the stable versions of all installed SDKs: `sdk current` - List all available SDKs: `sdk list` - List all versions of an SDK: `sdk list {{sdk_name}}` - Upgrade an SDK to the latest stable version: `sdk upgrade {{sdk_name}}` - Uninstall a specific SDK version: `sdk rm {{sdk_name}} {{sdk_version}}`