This jailbreak uses exploits discovered by Todesco & Ian Beer, and combines work done by xerub on Github to create a more stable jailbreak for the iPhone 7 and iPhone 7 Plus. This jailbreak is dubbed extra_recipe+yaluX. The first beta did not actually mount the root filesystem as read/write and therefore Cydia Substrate is disabled by default. On May 25, 2017, beta 3 was released to support Cydia Substrate. On May 29, 2017, a fourth beta was released to update to update to the latest GitHub branch, which includes support for 10.0.x.