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Sweden iOS kernel exploiting hacker "ijapija00" demonstrated iOS 10.2.1, iOS 10.2, iOS 10.1 and iOS 9.3.5 versions and released video step guide showed the way of Cydia installing. ijapija00 introduce this method as YUCCA Jailbreak, and this would be upcoming untethered jailbreak solution according to the jailbreak community.
As per "ijapija00" videos, YUCCA jailbreak looks like online (Browser based) Cydia install solution. Therefore, iOS users can use YUCCA jailbreak without PC. So YUCCA jailbreak would be the biggest innovation for latest iOS versions.

iOS 10.2.1 YUCCA Jailbreak demonstrate

ijapija00 demonstrated iOS 10.2.1 jailbreak with his iPhone 7 device. According to his Twitter status YUCCA jailbreak beta 2 only tested with iPhone 7 devices and rewrite the code to support other iOS devices in later.
See ijapija00's iOS 10.2.1 YUCCA jailbreak demonstrate video

iOS 10.2 YUCCA Jailbreak demonstrate

ijapija00 demonstrate iOS 10.2 jailbreak successfully and run his Amalthea Cydia tweak as well. This would be great news for the whole jailbreak community. At this time YUCCA jailbreak can be found on ijapija00 personal source https://ijapija00.bitbucket.io/beta/. However, please be careful using this because of YUCCA still on testing period.
See ijapija00's iOS 10.2 YUCCA jailbreak demonstrate video

iOS 10.1.1 - 10.1 YUCCA Jailbreak demonstrate

ijapija00 demonstrated iOS 10.1.1 jailbreak and this exploit working with iOS 10.1 as well. Also, he is showing Amalthea jailbreak tweak running on his iOS 10.1 device.
See ijapija00's iOS 10.1.1 - 10.1 YUCCA jailbreak demonstrate video

iOS 9.3.5 YUCCA Jailbreak demonstrate

ijapija00 demonstrated iOS 9.3.5 jailbreak as browser based jailbreak method. But still, he not shared this method along with jailbreak community.

YUCCA Utilities for fix Yalu jailbreak Cydia Substrate

Luca Todesco released Yalu jailbreak for iOS 10.1.1 - iOS 10.0.1 versions. But still, Yalu jailbreak not fully compatible with Cydia Substrate. iOS 10.1.1 users can fix Cydia crash issue and can make iOS 10.1.1 jailbreak more stable with ijapija00 YUCCA Utilities.

ijapija00's jailbreak tweaks

ijapija00 well famous Cydia tweak hacker and he developed few Cydia tweaks.
AlwaysTouch (iOS 9+) - unlock your iDevice using Touch ID without passcode enabled
Amalthea (iOS 9+) -Volume HUD in the Status Bar
CarDate - iOS users can use the Date as Carrier
Callisto (iOS 9/8) - Can use current time is your passcode
CustomCarrier (iOS 10) - Carrier changer

ijapija00 YUCCA Jailbreak