Dev:Updating extensions for iOS 9.3.3

Let's collect knowledge like we did with previous guides - paste in your notes and share what you've learned, and somebody else will organize it later. :) If you want to ask questions and share tips over chat with other developers, see How to use IRC for how to connect to #theos and #iphonedev.

Unlike previous instances of "Updating extensions for iOS X", this specific version has several internal changes as well as a different public jailbreak method which demands a separate page for it.

= What has changed in iOS 9.3.3? (Classes, frameworks, etc.) =


 * SBUIController's -finishLaunching ceased to exist. Consider using notifications to perform initializations of your tweaks if you were hooking this method. (com.apple.accessibility.system.app.server.ready, com.apple.frontboard.systemappservices.serverNotifyToken, SBSpringBoardDidLaunchNotification, com.apple.springboard.finishedstartup, com.apple.sharing.SpringBoard.started, com.apple.springboard.homescreenunlocked are some of the notifications to register for.)
 * SpringBoard's -_relaunchSpringBoardNow ceased to exist. Use [[FBSystemService sharedInstance] exitAndRelaunch:YES]</tt> (AFAIK there is no difference between YES</tt> and NO</tt> at the end).
 * To reboot, use [[FBSystemService sharedInstance] shutdownAndReboot:YES]</tt> and to shutdown, use [[FBSystemService sharedInstance] shutdownAndReboot:NO]</tt>
 * SBOrientationLockManager's -isLocked</tt> ceased to exist. There is now -isUserLocked</tt> (without lock override check) and -isEffectivelyLocked</tt> (with lock override check).
 * SBScreenShotter has been replaced with SBScreenshotManager. An instance of SBScreenshotManager is available through SpringBoard's screenshotManager</tt> property. To take a screenshot, use SBScreenshotManager's saveScreenshotsWithCompletion:</tt> method
 * SBWallpaperController now applies styles based on the current bundleIdentifier, rather than globally. For example: [wallpaperController setHomescreenStyle:1 priority:5 withAnimationFactory:nil];</tt> becomes [wallpaperController setHomescreenStyle:1 forBundleIdentifier:@"com.apple.SpringBoard" withPriority:5 animationFactory:nil];</tt>