Tests pass for me on all the implementations I have on Mac OS X (Yosemite), linux, and Windows. Now running the upgrade tests on linux on CCL, SBCL, CMUCL, Allegro, lispworks, ECL, ECL bytecodes, and MKCL. If those pass, I will bless the current head as 3.1.6. The upgrade tests are very time consuming, so I'll check in on them tomorrow morning.