4.4.0
Changed host parsing for URLs without a special scheme, per whatwg/url@3036255 and whatwg/url@cdbcce6.
Changed path parsing for URLs without a special scheme, per whatwg/url@b087fe2.
Fixed parsing path-less file URLs without a base URL, per whatwg/url@698f3e8.
Changed the URL API's username, password, port, host, and hostname accessors to work more correctly for file and non-special URLs, per whatwg/url@cf616f9.
Added the toJSON() method to the URL class, per whatwg/url@7dcfe5b.
Fixed percent-encoding to work correctly on U+FFFD, instead of dropping such characters.