Hi,
As its name suggests, an "update" updates an existing installation, just like Windows updates.
Moreover, Wampserver updates can only be installed if a Wampserver installation already exists and if its version is equal to or lower than the update version.
> that this problem is solved!
It was not a problem, it was just a warning that you might have problems if you change PHP versions without changing the corresponding PATH in the environment variable.
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Documentation Apache -
Documentation PHP -
Documentation MySQL -
Wampserver install files & addons