EtasonJB is a new jailbreak for iOS 8.4iOS 8.4iOS 8 is the eighth major release of the iOS mobile operating system developed by Apple Inc., being the successor to iOS 7. It was announced at the company's Worldwide Developers Conference on June 2, 2014, and was released on September 17, 2014. It was succeeded by iOS 9 on September 16, 2015. Apple Inc.. 1 that works with 32-bit32-bitWith the two most common representations, the range is 0 through 4,294,967,295 (232 − 1) for representation as an (unsigned) binary number, and −2,147,483,648 (−231) through 2,147,483,647 (231 − 1) for representation as two's complement. devices. It's an untethered jailbreak that has been developed by @tihmstar, the same hacker who created the Phoenix jailbreak for iOS 9.3. 5.