See all tickets marked for the 5.21.1 release

• [Xcode 26] - Fix watchOS build error with UITraitCollection in the new SDK #3819

• Reduce memory peak when playing the GIF on SDAnimatedImageView #3813

• [797]
• [792]

• Update build scripts for Xcode 16.2.

• Carthage release for Swift is built with Xcode 16.3.0.
• CocoaPods: 1.10 or later.
• Xcode: 15.3.0-16.3.

• Update build scripts for Xcode 16.2.

• Carthage release for Swift is built with Xcode 16.3.0.
• CocoaPods: 1.10 or later.
• Xcode: 15.3.0-16.3.

Layout and stability improvements

• Add Xcode 16.3 binaries.

• Realm Studio: 15.0.0 or later.
• APIs are backwards compatible with all previous releases in the 10.x.y series.
• Carthage release for Swift is built with Xcode 16.3.0.
• CocoaPods: 1.10 or later.
• Xcode: 15.3.0-16.3.

• Add Xcode 16.3 binaries.

• Realm Studio: 15.0.0 or later.
• APIs are backwards compatible with all previous releases in the 10.x.y series.
• Carthage release for Swift is built with Xcode 16.3.0.
• CocoaPods: 1.10 or later.
• Xcode: 15.3.0-16.3.

• Added support SwiftUI/LNPopupUI popup bar images for crossfade

• Improved LNPopupImageView content mode handling

• Added crossfade between transition target view and popup bar image to better allow for transitions that are not one to one with the bar image, like full popup content transition
• Fixed Mac Catalyst build and also added general Catalyst improvements to the framework