Clone the network to a test network, move one AP to it, upgrade just that one network. https://documentation.meraki.com/zGeneral_Administration/Organizations_and_Networks/Cloning_Networks_and_Organizations_in_Dashboard https://documentation.meraki.com/zGeneral_Administration/Firmware_Upgrades/Managing_Firmware_Upgrades#Managing_Firmware_as_an_Organization_Admin
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