Home Depot

Home Depot is a semi-untethered jailbreak for 32-bit devices on iOS 9.1 - 9.3.4. It was written by jk9357. It works by sideloading an IPA using Cydia Impactor. The first beta of version 1.1, offered as a separate download, added support for iOS 8.4.1 on A5 devices.

Background
In August 2016 it was discovered that three serious vulnerabilities had been exploited by a spyware named Pegasus. It was revealed that the malware had probably been out in the wild for a significant amount of time, and that it showed signs of having a kernel mapping table with values for versions stretching as far back as iOS 7. Apple released iOS 9.3.5 shortly thereafter, which supposedly patched the vulnerabilities CVE-2016-4655, CVE-2016-4656 and CVE-2016-4657. The incident was thoroughly covered in newspapers all over the world, and users were urged to update. Despite the seriousness of these vulnerabilities and the fact that the Pegasus spyware already exploited them, a jailbreak based on them was not seen. With PanGu for 64-bit only iOS 9.2 to 9.3.3 released just a few weeks earlier, in late July, and iOS 10 being released in September, only those who chose to stay on 9.3.4 and users of 32-bit devices, a small and ever shrinking minority, would have benefited from another iOS 9 jailbreak.

Trident and Trident+kloader
Hopes of another 32-bit jailbreak faded, as the two last jailbreaks were 64-bit only and the focus shifted to iOS 10. Several users asked if the iPhone 4S would be the first iPhone not to be jailbreakable on its final firmware. Eventually the Trident project was released, which used two of the Pegasus exploits (CVE-2016-4655 and CVE-2016-4656) to gain root access on iOS 9.3.4 and older. Trident was later paired with kloader to form Trident+kloader, which allowed users to downgrade using Odysseus and OdysseusOTA/OdysseusOTA2.

The full-fledged jailbreak is released
When Home Depot finally was released in January 2017, it was the first 32-bit jailbreak in more than a year. The news were bittersweet for many users, as they discovered that the solution was semi-tethered and that it did not support iOS 9.3.5. On the other hand, it proved that there was still a market for 32-bit jailbreaks. Home Depot became available to more users a couple of months later, when iDeviceReRestore was released, allowing users who had saved iOS 9 SHSH blobs and APTickets to downgrade.

Legacy
Since older iOS versions were vulnerable to the same exploits, several attempts were made to get Home Depot working on iOS 8.4.1, a then unjailbreakable version to which most 32-bit devices could OTA downgrade. For a while rumours were flying that the Fried Apple Team would port the 64-only Yalu for 8.4.1 jailbreak to 32-bit and also release a 32-bit compatible iOS 9.3.5 jailbreak. The community saw a renewed interest in porting Home Depot to 8.4.1 during the spring and early summer of 2017, when these rumours had turned out to be false.

Three similar or derivative products were released during the late summer of 2017:


 * 1) Phœnix, a semi-tethered jailbreak for 9.3.5 exploiting the fact that Apple had not properly patched the Pegasus exploits


 * 1) UntetherHomeDepot (originally BetterHomeDepot), an untether for Home Depot (iOS 9.1-9.3.4)


 * 1) EtasonJB, an iOS 8.4.1 compatible untethered jailbreak released after unsuccessful attempts to get Home Depot working on iOS 8

UntetherHomeDepot
On August 18, an untethered jailbreak (based off of Home Depot) was released on tihmstar's APT repository. Originally called BetterHomeDepot, the package was later renamed UntetherHomeDepot with the release of version 1.1.

Luca Todesco advised people to not use it, citing its potential to bootloop devices. The exploits used were labeled “not production grade”. An alternative stage1 exploit was later added.

The development was declared to be finished on 10 September, 2017, with the release of Community Offsets by @stek29.