HTTP/2 promises better performance -- but with security caveats

The new Internet communication protocol, HTTP/2, is now being used by 11 percent of websites -- up from just 2.3 percent a year ago, according to W3Techs.
The new protocol does offer better performance, but there is no particular rush to upgrade, and it's backwards-compatible with the previous protocol, HTTP/1.1.
No security problems have been found in the protocol itself, but there are vulnerabilities in some implementations and the possibility of lower visibility into internet traffic, so it'