General

New features

• Added configuration: LottieConfiguration = .shared option to more AnimationView initializers (https://github.com/airbnb/lottie-ios/pull/1654)
• AnimatedSwitch and AnimatedButton are now accessibility elements by default (https://github.com/airbnb/lottie-ios/pull/1637, https://github.com/airbnb/lottie-ios/pull/1639)

Bug fixes

• Fixed issue where LottieLogger.shared.assertionFailure would unexpectedly crash in -O / release builds (https://github.com/airbnb/lottie-ios/pull/1665)
• Fixed Carthage support on macOS (https://github.com/airbnb/lottie-ios/pull/1641)

Core Animation rendering engine

Reminder: Lottie 3.4.0 added a new rendering engine powered by Core Animation. Please try it out and let us know if you encounter any issues! It will be enabled by default in a future version of Lottie. More information is available in this announcement: https://github.com/airbnb/lottie-ios/discussions/1627

New features

• Added support for mixed isHold / !isHold keyframes (https://github.com/airbnb/lottie-ios/pull/1644)
• Added support for gradients with alpha values (https://github.com/airbnb/lottie-ios/pull/1634, https://github.com/airbnb/lottie-ios/pull/1640)
• Added support for negative speed values (https://github.com/airbnb/lottie-ios/pull/1660)

Bug fixes

• Fixed issue where ShapeLayer with no Groups would fail to render (https://github.com/airbnb/lottie-ios/pull/1646)
• Fixed issue where some shape fills would be applied incorrectly (https://github.com/airbnb/lottie-ios/pull/1647)
• Fixed issue where LottieBackgroundBehavior would unexpectedly be applied even when the animation was paused (#1653)