This major release updates the API Blueprint AST to support API Blueprint Format 1A8. A few other changes include:

• We have introduced a new Element which is a basic component of API description and can be used to build other objects in API Blueprint AST. It is currently being used for only a few elements such as Category, Asset, Copy, DataStructure and Resource
• Resource Group has been deprecated. Category Element will be used to represent it.
• payload.body and payload.schema have been deprecated. Asset which inherits from Element will be used in a payload for both body and schema.