Add

• Added ImageProgressive now contains a delegate onImageUpdated which will notify you everytime the progressive scanner can decode an intermediate image. You also have a chance to choose an image update strategy to respond the delegate. #1957 @jyounus
• Now the progressive option can work with KingfisherManager. Previously it only works when set in the view extension methods under kf. #1961 @onevcat

Fix

• A potential crash in AnimatedImageView that releasing on another thread. #1956 @ufosky
• A few internal clean up and removal of unused code. #1958 @idrougge

Remove

• With the support of ImageProgressive.onImageUpdated, the semantic of ImageProgressive.default is conflicting with the behavior. ImageProgressive.default is now marked as deprecated. To initilize a default ImageProgressive, use ImageProgressive.init() instead.