Does osquery enable tls1.3?

It does not enforce TLS v1.3; it can use either v1.2 or 1.3: https://github.com/osquery/osquery/blob/master/osquery/remote/transports/tls.cpp#L156 It supports the following cipher suites https://github.com/osquery/osquery/blob/d2be385d71f401c85872f00d479df8f499164c5a/osquery/remote/transports/tls.h#L25