Pangu team made the announcement at the Mobile Security Conference (MOSEC) 2016, which was held on July 1 at the Grand Kempinski Hotel in Shanghai, China.
Rumors that hit the jailbreak community in the past days suggested that the modified versions of iOS 10 and iOS 9.3.2 could be coming out soon as Chinese hacking team Pangu showcased the progress of its works so far. Cydia was seen running on iOS 10 while reports emerge that by early July the release date for iOS 9.3.2 jailbreak.
As for iOS 10 jailbreak, jailbreaking history - from Evad3rs to TaiG then Pangu - indicates that the unlocked version will not arrive until after a few months. If September 2016 is the touchdown time then iOS 10 JB tool can only be expected in December or early 2017.