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macOS 10.15.7 Catalina, iOS 14.0.1, iPadOS 14.0.1, watchOS 7.0.1, and tvOS 14.0.1 Squash Bugs - TidBITS
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Apple releases macOS Catalina 10.15.7 with bug fixes for WiFi and iMac GPU performance, more - 9to5Mac
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Apple Releases macOS Catalina 10.15.7 With Fixes for WiFi Bug, 27-Inch iMac Graphics Issues - MacRumors
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Apple iMac 2008 A1224 MB324LL/A 20" Screen Core 2 Duo 2.66GHz 4GB 320GB Catalina 885909203086 | eBay
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iMac7,1 (CPU Upgrade) - Update 10.15.1 to 10.15.4 with Catalina Patcher 1.3.5 not working : r/CatalinaPatcher
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