2018-04-09

Added new asset types for ARKit.

2017-09-19

Added new formats for named colors. Added and updated attributes for new system features.

2016-09-13

Added new formats for textures and Messages extensions including sticker packs. Added and updates attributes for new system features.

2015-12-08

Added the Layer Source Representation (LSR) format.

2015-10-21

Added types for tvOS.

2015-09-16

New document that describes the format for the Xcode document used to manage the mapping between named assets and content files.