Upgrade OpenSSL version
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Hi,
Depends on the version of OpenSSL you want to use. If it's >= 1.1, then you have to use Qt 5.10 at least otherwise you should be fine just updating the .dlls.
Don't forget to ensure you are using the a version built with the same compiler as your Qt version.
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No, recent versions of Qt don't use OpenSSL at all on macOS, they use the native SecureTransport framework. As for Linux, it's your distributions that handles OpenSSL updates unless you provide an "all in one" package for your application.
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Failure to load and use the library.
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