Returns the more recent protocol version we are willing to use, for either TLS or DTLS depending on datagram param. Shouldn't ever need to override this unless you want to allow a user to disable use of TLS v1.2 (which is *not recommended*)
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Returns the more recent protocol version we are willing to use, for either TLS or DTLS depending on datagram param. Shouldn't ever need to override this unless you want to allow a user to disable use of TLS v1.2 (which is *not recommended*)