It's reported that TLS 1.3 (currently in draft status) can reduce connection setup delays by 30% or approximately 30ms.

How can I configure this on MacOS or iOS?

1 Answer 1


According to WWDC2017:

  1. TLS 1.3 is not enabled by default

  2. You can enable this on iOS with this provisioning profile

  3. You can enable this on MacOS with this command in Terminal

    sudo defaults write /Library/Preferences/com.apple.networkd tcp_connect_enable_tls13 1


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .