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brian-webster · 7 years ago

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The evolution of macOS frameworks over time

When reading Gus Mueller’s post about how the presence of Marzipan might interact with Apple potentially transitioning to ARM processors, he mentioned that moving to a new architecture is a nice time to drop legacy frameworks and make a clean break with backward compatibility. This got me curious: how many frameworks currently on macOS could actually be dropped altogether?

So I dove into the Frameworks folder in the latest macOS SDK and found a total of 147 frameworks listed there. Yikes! I went down the list and wrote down which ones I think could reasonably be jettisoned on an architecture switch (note that there would also be many APIs within various frameworks that could be tossed too, even if the framework as a whole sticks around). Here’s the full list of all the frameworks:

Accelerate.framework Accounts.framework AddressBook.framework AdSupport.framework AGL.framework AppKit.framework AppKitScripting.framework AppleScriptKit.framework AppleScriptObjC.framework ApplicationServices.framework AudioToolbox.framework AudioUnit.framework AudioVideoBridging.framework Automator.framework AVFoundation.framework AVKit.framework BusinessChat.framework CalendarStore.framework Carbon.framework CFNetwork.framework CloudKit.framework Cocoa.framework Collaboration.framework ColorSync.framework Contacts.framework ContactsUI.framework CoreAudio.framework CoreAudioKit.framework CoreBluetooth.framework CoreData.framework CoreDisplay.framework CoreFoundation.framework CoreGraphics.framework CoreImage.framework CoreLocation.framework CoreMedia.framework CoreMediaIO.framework CoreMIDI.framework CoreMIDIServer.framework CoreML.framework CoreServices.framework CoreSpotlight.framework CoreTelephony.framework CoreText.framework CoreVideo.framework CoreWLAN.framework CryptoTokenKit.framework DirectoryService.framework DiscRecording.framework DiscRecordingUI.framework DiskArbitration.framework DrawSprocket.framework DVComponentGlue.framework DVDPlayback.framework EventKit.framework ExceptionHandling.framework ExternalAccessory.framework FinderSync.framework ForceFeedback.framework Foundation.framework FWAUserLib.framework GameController.framework GameKit.framework GameplayKit.framework GLKit.framework GLUT.framework GSS.framework Hypervisor.framework ICADevices.framework ImageCaptureCore.framework ImageIO.framework IMServicePlugIn.framework InputMethodKit.framework InstallerPlugins.framework InstantMessage.framework Intents.framework IOBluetooth.framework IOBluetoothUI.framework IOKit.framework IOSurface.framework iTunesLibrary.framework JavaFrameEmbedding.framework JavaScriptCore.framework JavaVM.framework Kerberos.framework Kernel.framework LatentSemanticMapping.framework LDAP.framework LocalAuthentication.framework MapKit.framework MediaAccessibility.framework MediaLibrary.framework MediaPlayer.framework MediaToolbox.framework Message.framework Metal.framework MetalKit.framework MetalPerformanceShaders.framework ModelIO.framework module.map MultipeerConnectivity.framework NaturalLanguage.framework NetFS.framework Network.framework NetworkExtension.framework NotificationCenter.framework OpenAL.framework OpenCL.framework OpenDirectory.framework OpenGL.framework OSAKit.framework PCSC.framework Photos.framework PhotosUI.framework PreferencePanes.framework Python.framework QTKit.framework Quartz.framework QuartzCore.framework QuickLook.framework QuickTime.framework Ruby.framework SafariServices.framework SceneKit.framework ScreenSaver.framework Scripting.framework ScriptingBridge.framework Security.framework SecurityFoundation.framework SecurityInterface.framework ServiceManagement.framework Social.framework SpriteKit.framework StoreKit.framework SyncServices.framework System.framework SystemConfiguration.framework Tcl.framework Tk.framework TWAIN.framework UserNotifications.framework VideoDecodeAcceleration.framework VideoSubscriberAccount.framework VideoToolbox.framework Vision.framework vmnet.framework WebKit.framework

Out of those, I figure the following 27 can probably be chucked:

AddressBook (replaced by Contacts)

AGL (OpenGL deprecated)

AppleScriptKit (Part of AppleScript Studio, which let you write Cocoa apps in AppleScript. No, really.)

CalendarStore (replaced by EventKit)

CoreTelephony (replaced by CallKit)

DirectoryService (replaced by OpenDirectory)

DiscRecording (LOL disc burning)

DiscRecordingUI

DVDPlayback (they’re gonna add Blu-ray support any day now)

FWAUserLib

GLKit (OpenGL deprecated)

GLUT (OpenGL deprecated)

ICADevices (replaced by ImageCaptureCore)

IMServicePlugin

InstallerPlugins

InstantMessage

iTunesLibrary (hopefully they’d bring AssetLibrary.framework over from iOS)

JavaFrameEmbedding

JavaVM

MediaLibrary (hopefully replaced by AssetLibrary + PhotoKit)

OpenCL (OpenCL deprecated)

OpenGL (OpenGL deprecated)

QTKit

QuickTime (so long little buddy 😢)

SafariServices

Social

SyncServices (and you thought iCloud Core Data was bad! 🐝🐝🐝)

That’s actually not that many, all things considered! But then, looking through this rather long list of frameworks, I started wondering: how many frameworks were present in the initial release of Mac OS X 10.0? I couldn’t dig up a list for 10.0, but some enterprising individual created a repository on Github with all the macOS SDKs back to version 10.1.5. There were 41 frameworks in that SDK:

AGL.framework AppKit.framework AppKitScripting.framework AppleScriptKit.framework AppleShareClient.framework (no longer present, probably dumped during the PPC->Intel) AppleShareClientCore.framework (no longer present) AppleTalk.framework (no longer present) ApplicationServices.framework AudioToolbox.framework AudioUnit.framework Carbon.framework Cocoa.framework CoreAudio.framework CoreFoundation.framework CoreMIDI.framework CoreMIDIServer.framework CoreServices.framework DVComponentGlue.framework DirectoryService.framework DrawSprocket.framework ExceptionHandling.framework Foundation.framework GLUT.framework IOKit.framework InterfaceBuilder.framework JavaEmbedding.framework JavaVM.framework Kerberos.framework Kernel.framework LDAP.framework Message.framework OpenGL.framework PCSC.framework PreferencePanes.framework QuickTime.framework ScreenSaver.framework Scripting.framework Security.framework System.framework SystemConfiguration.framework vecLib.framework (got moved into Accelerate.framework)

You’ll notice a lot of big names missing from that list, including CoreData, CoreImage, AVFoundation, ImageIO, and WebKit, among others. It was definitely a simpler time!

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