I also don't think you're right that it never happened for the dedicated servers :) I'm only using Hetzner for dedicated servers, and found an email from 2022 where they mention price updates:

> Unfortunately, we are forced to increase the prices on these Server Auction models [...] old price 37.60 Euro -> 59.29 Euro, comes into effect 2022-03-03

Citing raising energy prices at that time.

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dizhn a day ago | parent [-]

Probably not for existing customers (their existing servers). I don't recall anything other than the IPv4 related increase in the past. I might be wrong of course as I've demonstrated already.

	▲	embedding-shape a day ago \| parent [-]
		> Probably not for existing customers Yes, in 2022 I was an existing customers, and my server increased in price then, the server affected at that point went from 37.60 Euro to 59.29 Euro. Today that same server went from 65.22 to 67.18, so there is even more price increases seemingly between today and 2022 but I'm not finding exactly when that was.