https://wccftech.com/meridian-ios-10-3-3-jailbreak-for-64-bit-devices-is-on-its-way-video/

Those with a 64-bit iPhone or iPad running iOS 10.3.3 will be pleased to learn that a new jailbreak is headed their way called Meridian.

A few days back, H3lix was released for 32-bit devices, allowing those on iOS 10.3.3 to finally liberate their devices from the shackles of Apple’s walled garden. But of course, there was no 64-bit support at all, which meant those with an iPhone 5s, iPhone 6, iPhone 6s etc. weren’t able to take any advantage of the solution. Today, there’s good news for those on iOS 10.3.3 once again as a new jailbreak called Meridian has been teased on Twitter that finally lets you jailbreak 64-bit devices on the aforementioned firmware.