Status of `allOf` support

[maxdeviant]

I can see from the README that support for allOf is pending.

It looks like the (partial?) support is implemented, but commented out:

// NOTE this is not proper jsonschema, likely in v5 w/ merge
// var merge = require('lodash/fp/merge');
/*function mergeAllOf(schema) {
	// TODO update https://github.com/json-schema/json-schema/issues/116
	if (exists(Object.keys(schema),'allOf')) {
		for(var i = schema.allOf.length; i--;) {
			schema.allOf[i] = mergeAllOf(schema.allOf[i]);
			var required = schema.required || [];
			required = required.concat(schema.allOf[i].required || []);
			schema = merge(schema, schema.allOf[i]);
			if (required.length) schema.required = required;
		}
		delete schema.allOf;
	}
	return schema;
}*/

(Source)

What is the status of allOf support? Are there blockers upstream?

I would be more than willing to add support for it, if it is needed, as this is a pretty important feature for my team.