If you didn’t notice, Meraki’s MR26.X firmware was recently promoted to Generally Available status for new platforms. That means it is now the default firmware build for MR20/70/42E/53E/45/55 networks and has passed the performance, quality, and scale thresholds required for mass adoption.
Besides the usual under the hood optimizations, MR26 introduces three specific enhancements – native Cisco Umbrella integration, alternate management interface, and a new mandatory client DHCP option.