I would not exchange the MS225-24P with the same model. Instead you or your customer might discuss upcoming changes or needs so you might end up with a different model (48P model or a L3 one etc.) I terms of Wifi: Yes, there are some changes, but I think that WiFi 6 is enough for today and the next year's. But, it might be an idea to exchange the APs in order to be more flexible (Cisco Classic / Meraki ones share the same chassis) Nevertheless, let's see what kind of major changes will follow, so it might be an idea to exchange it due to a breaking change.
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