I felt like breaking the silence a bit, so... Which of SRFI-125 and SRFI-126 does the community prefer so far, and for what reasons? Furthermore, do you think SRFI-126 would have been worthy of appearing in R7RS-small, as section "6.10 Hashtables"? Asking it this way might stir up some ideas... (BTW hashtable-clear-copy has been renamed to hashtable-empty-copy now. Draft 6 is underway. No other substantive changes.) Taylan