• Full js client development log at https://github.com/WP-API/client-js
• When SCRIPT_DEBUG off, use minified script

JavaScript client change highlights:

• Api builds models and collections from Schema, no hard coded models or collections; any endpoint in the schema will be mapped; supports multiple schemas (apis); helper methods for post model: all helpers user _embed data if available, otherwise using ajax request.
• new: Async load of api, apps can use the deferred to time startup
• new: Ability to localize schema, falls back to making an ajax request & cached in session storage; develop branch of client js has code that only localizes data once per session
• new Helper methods for Posts model: getCategories and setCategories
• fix: cleanup TimeStampedMixin
• new: models/collections get defaults and options from schema
• fix: all code up to WordPress JavaScript coding standards
• new: helper method to get post author user model getAuthorUser
• new: helper method to get a featured image for a post: getFeaturedImage
• new: models protect methods based on endpoint methods (eg. destory is blocked if an endpoint doesn't have a 'DELETE' method)
• new: models contain a reference to the original route object
• note: all helper getters return a promise
• note: added latest docs here: Add js client docs docs-v2#82

On the roadmap:

• Complete helper method suite
• Add name mapping so we can get non-plural names for all models and plural names for all collections