Phœnix is the most established and widely used tool for 32-bit devices running iOS 9.3.5 or iOS 9.3.6. Semi-tethered.
For iPhone 6 users, this represents the ultimate goal: a permanent, reboot‑proof jailbreak that requires no re‑jailbreak app or computer intervention. Keep an eye on @dora2ios’s X (Twitter) feed for announcements.