Chimera is a semi-untethered jailbreak for all devices running 12.0 - 12.1.2, A7-A11 devices on 12.0 - 12.2, A8-A11 devices on  12.4 and tvOS 12.0 - 12.2. 
Versions
iOS
| Version | Date | Changes | 
| 1.0 | 30 April 2019 |  | 
| 1.0.1 | Fix voucher_swap on betasFix voucher_swap on some iPad ProsReduce IPA size by 32%
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| 1.0.2 | Fixes issues with A12X iPad Pro's failing to jailbreak
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| 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!
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| 1.0.4 | Removes the broken SSH toggle on 1.0.3 and fixes non-working SSH
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| 1.0.5 | 10 May 2019 | Fixes Mail.app send bug.Updates Sileo to 1.0.6Attempts to fix A12-only Camera bugFixes issues with the app occasionally black screening at step 2 and should improve success rate.Adds machswap2 for A12
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| 1.0.6 | 19 May 2019 | Improves jailbreak success rateFixes issue in 1.0.5 that would result in automatic rootfs restores
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| 1.0.7 | 26 May 2019 | Makes re-jailbreaking significantly faster (4 seconds instead of 12 seconds on a device tested with mach_swap2)!
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| 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.
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| 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!
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| 1.1.0 | 8 July 2019 | Updates bundled Sileo to 1.1.5Fixes Sileo icon not showing up after jailbreak
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| 1.2.0 | 12 July 2019 | add support for A9 - A11 devices on iOS 12.1.3 - 12.2
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| 1.2.1 | This fixes issues that users were experiencing with the exploit failing on 12.2
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| 1.2.2 | This fixes an issue where 1.2.1 would fail to jailbreak A12 devices using voucher_swap
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| 1.2.3 | 14 July 2019 | This adds support for some beta versions of iOS 12.3!
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| 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!
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| 1.2.5 | 23 July 2019 | Improves stability significantly on iOS 12.2Fixes occasional freezes on 12.0 - 12.1.xAdds @NedWilliamson to in-app credits for sockpuppet
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| 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
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| 1.2.7 | 26 July 2019 | adds support for sockpuppet 1.5 on A12 devices on 12.0 - 12.1.2
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| 1.2.8 | 18 August 2019 | Adds support for iOS 12.4 on A9 - A11 devices!
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| 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)
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| 1.3.0 | 19 August 2019 | adds support for A8 devices on 12.4
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tvOS
| Version | Date | Changes | 
| 1.0 | 30 April 2019 |  | 
| 1.0.2 | 4 May 2019 | Fixes issues with Apple TV 4K failing to jailbreak
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| 1.0.6 | 20 May 2019 | Improves jailbreak success rate
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| 1.0.7 | 28 May 2019 | Makes re-jailbreaking significantly faster
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| 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
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| 1.2.5 | 23 July 2019 | This brings all the stability fixes from Chimera 1.2.5 to ATV!
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| 1.2.6 | 26 July 2019 | adds support for sockpuppet2 on the A10 Apple TV on 12.0 - 12.2
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