On Tue, Jul 23, 2013 at 12:04 PM, Michael Snoyman <michael@snoyman.com> wrote:

• Possibly: hide the Request constructor so that new fields can be added without breaking backwards compatibility.
  

I strongly believe this isn't the best route to achieve stability. This will end up in hacking up own versions of WAI with exported internals. At the very least please consider adding "Internal" module with stability warnings but actually exposing the constructor.