TaiG

TaiG (Taiji in Chinese) ( /taɪ dʒi/ or /taɪ tʃi/ ) is an untethered jailbreak for all devices on iOS 8.0-8.4, except the Apple TV and Apple Watch. It was initially released on 2014 for 8.0 - 8.1.2 but since updated to support 8.1.3 - 8.4.

At some point of time, all TaiG download links have been made not working, rendering this jailbreak method unavailable. Even you can get one from a mirror, the application will still try to access TaiG server which is no longer running.

Supported Devices
All devices capable of running iOS 8.0-8.4 (except the Apple TV family and Apple Watch) are supported.

iOS 8.2 Beta
TaiG's website originally claimed as early as 2014 that "support of iOS 8.2 has been completed by TaiG, [but] as 8.2 is still at beta stage, we have disabled support for 8.2 in [the] current public release." This claim remained through 2014, but was removed sometime before 2015.

On 2015, version 1.3 was released to jailbreak iOS 8.2 beta and beta 2.

Installed Packages

 * APR (/usr/lib) (1.3.3-2; )
 * APT 0.7 (apt-key) (0.7.25.3-3; )
 * APT 0.7 Strict (lib) (0.7.25.3-13; )
 * Base Structure (1-4; )
 * Big Boss Icon Set (1.0; )
 * Bourne-Again SHell (4.0.44-15; )
 * bzip2 (1.0.5-7; )
 * Core Utilities (/bin) (8.12-7p; )
 * Cydia Installer (1.1.19; )
 * Cydia Translations (1.1.12; )
 * Darwin Tools (1-4; )
 * Debian Packager (1.14.25-9; )
 * Debian Utilities (3.3.3ubuntu1-1p; )
 * Diff Utilities (2.8.1-6; )
 * Find Utilities (4.2.33-6; )
 * GNU Privacy Guard (1.4.8-4; )
 * grep (2.5.4-3; )
 * gzip (1.6-7; )
 * LZMA Utils (4.32.7-4; )
 * New Curses (5.7-13; )
 * PAM (Apple) (32.1-3; )
 * PAM Modules (36.1-4; )
 * pcre (8.30-5p; )
 * Profile Directory (0-2; )
 * readline (6.0-7; )
 * sed (4.1.5-7; )
 * shell-cmds (118-6; )
 * system-cmds (433.4-12; )
 * TaiG 8.1.3-8.X Untether (2.3.0; )
 * Tape Archive (1.19-8; )
 * UIKit Tools (1.1.10; )

Exploits and analysis
"The Annotated (informal) guide to TaiG - Part I", and "Part II" by Jonathan Levin (iOS 8.0 - 8.1.2)

"Jailbreak Payloads From Star to TaiG" in Persian, by Mahyar Rezghi (iOS 8.0 - 8.1.2)

"28 Days Later - The Annotated (informal) guide to TaiG returns - Part I", by Jonathan Levin (iOS 8.3 - iOS 8.4)

"HIDden Treasures" (TaiG 2 - Part II), by Jonathan Levin (iOS 8.3 - iOS 8.4)