The latest ZDK’s contain new features to improve installation flexibility and network topology distribution of a Z-Wave network. Therefore is it important to understand these features in detail to ensure backward compatibility with Z-Wave enabled products built on older Developer’s Kit releases. From ZDK v3.3x the Static Update Controller （SUC） was introduced to allow slave and controller nodes to request network topology updates. From ZDK v3.4x the SUC can in addition also function as a node ID server （SIS） to allow other controllers to include/exclude nodes to/from the network. Furthermore， the unique node ID 0xEF for primary controllers was discontinued. From ZDK Kit v4.2x the silent acknowledge mechanism was introduced to reduce routing latency. Refer to section 3.4 for details. From ZDK v5.0x Zensor Net technology was introduced. This enables the creation of FLiRS and Zensor nodes. From ZDK v4.5x （v4.50 came after v5.02） explorer frames were introduced to improve network management and inclusion flexibility. FLiRS and Zensor nodes are not supported but all kind of v4.50 slaves are able to beam when acting as repeater. Refer to section 6 for details.