See all tickets marked for the 5.19.1 release

Features

• Allows the transformer to preserve the UIImage metadata like image format Allows the transformer to preserve the UIImage metadata like image format #3688
• Add a protect when NSString passed into sd_setImageWithURL API (which should be NSURL instance) Add a protect when NSString passed into sd_setImageWithURL API (which should be NSURL instance) #3686 @aasdsjk

Performance

• Replace NSFileManager.enumeratorAtPath with enumeratorAtURL for performance and RAM saving Replace NSFileManager.enumeratorAtPath with enumeratorAtURL for performance and RAM saving #3690 @ChengzhiHuang

Warnings

• mark SDWebImageCacheKeyFilter default initializer unavailable & add missing default case of SDCallbackQueue sync/async function mark SDWebImageCacheKeyFilter default initializer unavailable & add missing default case of SDCallbackQueue sync/async function #3683 @adamwangxx