MacOS Big Sur：修订间差异

Big Sur的推出帶來了幾個問題<ref>{{cite web|url=https://gizmodo.com/its-been-a-rough-launch-for-big-sur-1845686868|title=It's Been a Rough Launch for Big Sur|last=Song|first=Victoria|date=2020-11-16|website=Gizmodo|access-date=2020-11-17}}</ref>。升級至Big Sur的最初公開發行版（版本11.0.1）將使某些電腦變[[砖 (电子设备)|磚]]，使它們無法使用。當中許多都是2013年和2014年的MacBook Pro，儘管在2019年的MacBook Pro和iMac也發現到相同問題<ref>{{cite web |url=https://www.macrumors.com/2020/11/15/macos-big-sur-update-bricking-some-macbook-pros/ |title=macOS Big Sur Update Bricking Some Older MacBook Pro Models |last=Charlton |first=Hartley |date=2020-11-16 |website=MacRumors |access-date= 2020-11-16}}</ref><ref>{{cite web |url=https://www.independent.co.uk/life-style/gadgets-and-tech/apple-macos-big-sur-macbook-air-pro-brick-b1723552.html |title=Apple's MacOs Big Sur Update 'Bricks' Some Older Macbooks, Users Complain |last=Smith |first=Adam |date=2020-11-16 |website= The Independent |access-date=2020-11-16}}</ref><ref name=forbes>{{cite web |url=https://www.forbes.com/sites/johnkoetsier/2020/11/16/apples-new-big-sur-update-bricking-older-macs/ |title=Apple’s New 'Big Sur' Update Bricking Older Macs |last=Koetsier |first=John |date=2020-11-16 |website=Forbes |access-date=2020-11-16}}</ref>。最初版本的推出還破壞了蘋果公司的應用程式公證流程，甚至在未運行Big Sur的裝置上也會導致速度下降<ref>{{cite web |url=https://arstechnica.com/gadgets/2020/11/macos-big-sur-launch-appears-to-cause-temporary-slowdown-in-even-non-big-sur-macs/|title=macOS Big Sur launch appears to cause temporary slowdown in even non-Big Sur Macs |last1=Axon |first1=Samuel |last2=Hutchinson|first2=Lee |date=2020-11-12 |website=Ars Technica |access-date=2020-11-17}}</ref>。使用者們回報其更新速度很慢，甚至可能無法安裝<ref>{{Cite web|last=Potuck|first=Michael|date=2020-11-12|title=Apple confirms widespread outages affecting downloads, more|url=https://9to5mac.com/2020/11/12/apple-widespread-outages-big-sur-downloads-catalina-imessage/|access-date=2020-12-14|website=9to5Mac|language=en-US}}</ref>。由於{{le|Gatekeeper|Gatekeeper (macOS)}}的問題，macOS Catalina和Big Sur的應用程式所需的加載時間很長<ref>{{Cite web|author=Johnson, Jeff|title=Untitled|url=https://twitter.com/lapcatsoftware/status/1326990296412991489|date=2020-11-12|access-date=2020-12-17|website=[[Twitter]]|language=en}}</ref>。