A post to Weibo by HackPwn2015 confirms the report saying (Google Translated), "Pangu team known domestic security team, on-site break Apple's iOS8.4.1 system! ! !"
It's highly unlikely that Pangu will release their jailbreak with iOS 9 just around the corner. Hopefully the exploits used to jailbreak iOS 8.4.1 will remain usable with the final build of iOS 9.
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Read More [via Reddit]