A shiny new SRFI-110 specification and reference implementation have just been posted (thanks, SRFI editors!!).

This edition:
* Adds the new write procedures to the specification and reference implementation,
   including for shared structures and cycles (starting from the Chibi implementation).
* Has a separate discussion about wisp.

Handling shared structures and cycles is annoying.  But that's probably
a good reason to include them in the spec... now it's the library author's
problem, not the user's.  I have a completely *separable* -simple
implementation, so that constrained implementations that ONLY want to
provide that can do so.

As always, comments are welcome.

--- David A. Wheeler