Developer xerub has just released an updated version of Ian Beer's mach_portal exploit, entitled extra_recipe. This new iteration should resolve the stability issues which have been plaguing iPhone 7 and iPhone 7 Plus users on the iOS 10.1.1 jailbreak.
Yalu creator Luca Todesco has in turn picked up the extra_recipe code and paired it with his Yalu jailbreak, compiling the project into a downloadable .ipa to create extra_recipe+yaluX, which effectively replaces his previous yalu+mach_portal tool.