I upgraded mine to version 18.107.2 and had no major problems, the only thing I noticed is that I can't access my Windows workstations via RDP (I don't know if it could be one of the security features I have enabled ), but for hours it is not bothering me.
I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.
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