Status of WKWebView?

Anybody know what the latest on WKWebView? Tried it and indeed is lowers the consumed memory on iPhone dramatically. Nevertheless, full of issues and bug.

Doesn’t look too good/stable: https://issues.apache.org/jira/browse/CB-12037?jql=project%20%3D%20CB%20AND%20labels%20%3D%20wkwebview-known-issues

Not sure why this project doesn’t get more attention. I saw iPhone memory going down from 100MB+ on standard view to 10-20MB when using WKWebView.