Do the Cobblestones need to be on the same firmware version to stay in sync with one another? Jade Updated October 26, 2016 00:28 Follow Yes! Please keep the firmware in sync since we are still optimizing certain features that require the latest firmware. Related articles What is the maximum number of Cobblestones streaming music on the same wireless network? Syncing over LAN connections [NEW] How does the Wi-Fi network automatically become the Cobblestone's hotspot password? iOS v 2.9 How do I use Multi-Room Feature?