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@@ -73,7 +73,7 @@ It is extremely recommended to disable automatic updates (even downloading) when
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For a related "System version mismatch" error while root patching and more information, refer to [System version mismatch error when root patching](https://dortania.github.io/OpenCore-Legacy-Patcher/TROUBLESHOOTING.html#system-version-mismatch-error-when-root-patching) for troubleshooting.
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### Disabling updates
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::: details How to disable updates (click to expand)
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**macOS Ventura and newer:**
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@@ -83,6 +83,8 @@ System Settings -> General -> Software Update -> (i) button next to Automatic Up
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System Preferences -> Software Update -> Advanced -> Disable "Download new updates when available".
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## Why are macOS updates so large?
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macOS by default uses a sealed system volume that is unwritable. When the seal is broken, macOS thinks the volume is broken and downloads a full copy of macOS for every update to "repair" it to a known state. In order for root patching to work, this seal has to be broken since root patching by design requires on-disk file manipulation. This is also why root patches have to be reinstalled after each update.
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In essence, this means that some models are now aging rapidly and newer OS won't always provide support for newer applications because of hardware requirements. If an application still supports macOS versions older than Ventura, it may have a chance of running on an older OS version on the old system, since some Macs running them natively don't support AVX2 and the app takes a different path.
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Earliest Mac models supporting AVX instruction:
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::: details Earliest Mac models supporting AVX instruction (click to expand)
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- Macmini5,x (2011)
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- iMac12,x (2011)
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- MacBookPro8,x (2011)
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- MacBookAir4,x (2011)
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- MacBook8,x (2015)
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- MacPro6,1 (2013)
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:::
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Earliest Mac models supporting AVX2 instruction:
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::: details Earliest Mac models supporting AVX2 instruction (click to expand)
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- Macmini7,x (2014)
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- iMac14,x (2013)
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- MacBookPro11,x (2013)
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- MacBookAir6,x (2013)
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- MacBook8,x (2015)
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- MacPro7,1 (2019)
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## What is Metal and Non-Metal?
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Metal is Apple's proprietary graphics API which fully superseded OpenGL rendering of the operating system starting from macOS Mojave. When the word "Non-Metal" is used, it describes GPUs that are not Metal supported and require using OpenGL instead. Due to deprecation of OpenGL, many newer applications may require Metal rendering and as such will fail to run on systems with Non-Metal GPUs. Some built-in apps like Maps and everything relying on it (such as Find My) will fail to render as well on versions later than Big Sur.
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A great rule of thumb is that Macs older than 2012 are non-Metal, with the exception of systems having upgradable GPUs.
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::: details Metal supported GPUs
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::: details Metal supported GPUs (click to expand)
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* Intel HD 4000 series (Ivy Bridge/3rd gen) and newer
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