Chimera

Chimera

Developer(s)	Electra Team CoolStar
Initial release	30 Apr 2019 (2019-04-30)
Stable release	1.6.2 (iOS) 1.3.9 (tvOS) / 7 February 2021 (iOS) 9 October 2019 (tvOS)
Operating system	iOS, tvOS
Available in	English
Type	Jailbreaking
Website	chimera.coolstar.org

Chimera is a semi-untethered jailbreak for A7-A11 devices running 12.0-12.5.1, A12 devices on 12.0-12.1.2, and tvOS 12.0-12.2 and 12.4. (Nonce setter only on 12.1.3-12.2, 12.4-12.4.1 for A12 devices.)

Versions

iOS

Version	Date	Changes
1.0	30 April 2019	Initial Release
1.0.1		Fix voucher_swap on betas Fix voucher_swap on some iPad Pros Reduce IPA size by 32%
1.0.2		Fixes issues with A12X iPad Pro's failing to jailbreak
1.0.3	4 May 2019	Adds a fix for RocketBootstrap issues on certain devices and updates the bundled @GetSileo to version 1.0.5!
1.0.4		Removes the broken SSH toggle on 1.0.3 and fixes non-working SSH
1.0.5	10 May 2019	Fixes Mail.app send bug. Updates Sileo to 1.0.6 Attempts to fix A12-only Camera bug Fixes issues with the app occasionally black screening at step 2 and should improve success rate. Adds machswap2 for A12
1.0.6	19 May 2019	Improves jailbreak success rate Fixes issue in 1.0.5 that would result in automatic rootfs restores
1.0.7	26 May 2019	Makes re-jailbreaking significantly faster (4 seconds instead of 12 seconds on a device tested with mach_swap2)!
1.0.8	9 June 2019	This fixes the issue where the Sileo icon wouldn't show up after jailbreaking with 1.0.7, 1.0.8 is otherwise identical to 1.0.7.
1.0.9	2 July 2019	This includes a few stability fixes and optimizations, as well as updating the bundled Sileo to 1.1.2!
1.1.0	8 July 2019	Updates bundled Sileo to 1.1.5 Fixes Sileo icon not showing up after jailbreak
1.2.0	12 July 2019	add support for A9 - A11 devices on iOS 12.1.3 - 12.2
1.2.1		This fixes issues that users were experiencing with the exploit failing on 12.2
1.2.2		This fixes an issue where 1.2.1 would fail to jailbreak A12 devices using voucher_swap
1.2.3	14 July 2019	This adds support for some beta versions of iOS 12.3!
1.2.4	15 July 2019	This adds support for A7 and A8 devices on 12.1.3 to 12.2 including certain 12.3 betas!
1.2.5	23 July 2019	Improves stability significantly on iOS 12.2 Fixes occasional freezes on 12.0 - 12.1.x Adds @NedWilliamson to in-app credits for sockpuppet
1.2.6	24 July 2019	This adds sockpuppet2 for devices on iOS 12.1 - 12.2, increasing reliability of the exploit! Note, 12.0/12.0.1 will get sockpuppet 1.5 instead; though they may use machswap(2) or voucher_swap
1.2.7	26 July 2019	adds support for sockpuppet 1.5 on A12 devices on 12.0 - 12.1.2
1.2.8	18 August 2019	Adds support for iOS 12.4 on A9 - A11 devices!
1.2.9		This bundles the package updates that were pushed after 1.2.8, and should fix issues with installing certain packages (such as NewTerm or Anemone 3)
1.3.0	19 August 2019	adds support for A8 devices on 12.4
1.3.3	20 August 2019	This replaces the sockpuppet 1.5 & sockpuppet2 exploits with the sockpuppet3 exploit (thanks to @umanghere) This also adds support for A7 & A8X
1.3.4	21 August 2019	This fixes the issue causing occasional reboots on 12.2 and 12.4. Fixes Sileo not installing correctly on iOS 12.0 - 12.1.4.
1.3.6	23 August 2019	improvements to the SockPuppet exploit that increase reliability and fixes a rare crash that could happen rarely shortly after the jailbreak process.
1.3.7	3 September 2019	Supports getting & setting generator on A12 on 12.1.3 - 12.2 and 12.4!
1.3.8	4 September 2019	This fixes error handling of setting nonces on A12 12.1.3+, as well as fixing an issue with setting nonces on devices that haven't used `igetnonce` get.
1.3.9	16 September 2019	This improves the success rate of sockpuppet3 (especially on 4K devices like the 5S and 6)
1.4.0	14 March 2020	This uses libhooker internally instead of substitute to apply some patches.
1.5.0	2 December 2020	Adds support for up to 12.4.9 on pre-A12 and nonce setter support for A12 on 12.4.1.
1.5.1		Rejailbreaking an existing Odysseyra1n installation with Chimera will no longer wipe packages database Rejailbreaking an existing Chimera installation with checkra1n (for Odysseyra1n) will have working read/write filesystem RocketBootstrap from the Odyssey repo will now work correctly on Chimera Exploit selector on iOS 12.2 & 12.4 now works correctly (to allow switching between sockpuppet and life_waste)
1.6.0	25 December 2020	Officially verified to work on iOS 12.5 (Chimera 1.5.1 already worked on 12.5) Backports more of Odyssey's changes to Chimera the platform-application entitlement is now no longer required for binaries to run skip-library-validation entitlement is now no longer required for libraries to load into binaries improves efficiency and reliability of Chimera Note: These backported changes were adapted to use kexec [pac bypass], as such Chimera still only supports A12 devices up to iOS 12.1.2 Fixes potential app black screen issue during the jailbreak process Fixes reliability issues with injecting into launchd during the jailbreak process Fixes potential post-jailbreak kernel panics on 4K devices (A7/A8) improving reliability of the jailbreak jailbreakd plist has been moved to improve compatibility with odysseyra1n (jailbreakd no longer runs or crashes when booted with odysseyra1n) Fixes memory leak and slow performance if jailbreakd is restarted Experimental support for full userspace reboot To test userspace reboot you can run launchctl reboot userspace Userspace reboot should complete in about 15 seconds Userspace reboot works about 50% of the time (hence the jailbreak itself is still using ldrestart as it's more reliable)
1.6.1	16 January 2021	Userspace reboot is now fully completed and reliable Userspace reboot is now enabled by default and runs during the jailbreak process instead of ldrestart Officially validated for iOS 12.5.1
1.6.2	7 February 2021	Fully reliable userspace reboot Sileo icon now shows up reliably on fresh bootstraps uicache runs on rootfs restore and removes jailbreak app icons New Chimera splash screen on userspace reboot

tvOS

Version	Date	Changes
1.0	30 April 2019	Initial Release
1.0.2	4 May 2019	Fixes issues with Apple TV 4K failing to jailbreak
1.0.6	20 May 2019	Improves jailbreak success rate
1.0.7	28 May 2019	Makes re-jailbreaking significantly faster
1.2.2	14 July 2019	This version adds support for tvOS 12.2 on the Apple TV 4K , 1080p Apple TV 4 is only supported up to 12.1.1
1.2.5	23 July 2019	This brings all the stability fixes from Chimera 1.2.5 to ATV!
1.2.6	26 July 2019	adds support for sockpuppet2 on the A10 Apple TV on 12.0 - 12.2
1.3.4	21 August 2019	This fixes the issue causing occasional reboots on 12.2 and 12.4. Adds support for tvOS 12.2 & 12.4
1.3.6	23 August 2019	improvements to the SockPuppet exploit that increase reliability and fixes a rare crash that could happen rarely shortly after the jailbreak process. bundles a new version of nitoTV that fixes a variety of bugs.
1.3.9	9 October 2019	updated bootstrap, latest nitoTV and it will recover from running "reset settings" properly now as well.