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4. 2021
5. August 2021

Added

• Implement the WHATWG URL and URLSearchParam classes
• Enable private class fields and methods, plus ergonomic brand checks
• Breaking change: Implement FetchEvent#waitUntil
• Mark builtins that rely on hostcalls as request-handler-only
• Add support for including binary files, and for using typed arrays as Response bodies
• Improve handling of hostcall errors

Fixed

• Breaking change: Make FetchEvent handling more spec-compliant
• Normalize HTTP method names when constructing Requests
• Don't trap when trying to delete a non-existent header
• Properly support base argument in URL constructor