1.Last official version Volvo TechTool 2.5.87 Development maximal authorized 2. Dev2tool (for programming parameters on older trucks)3. Developer tool Acpi+ Ultimate pro v3 (for programming parameters on newer trucks)4. Parameter description for all version (2 3 and 3 version ) -New Version and other external applications. The set of plug-ins, user authorizations, and available languages is adjustable to provide every user with what they need.