I noticed a couple of typos in the latest release notes for Boost.Test, at http://cvs.sourceforge.net/viewcvs.py/boost/boost/libs/test/doc/release_notes.html?rev=1.7&view=auto It now reads, near the top, <LI>Floating point comaprison algorithm reworked (Is not backward compatible!!!) <UL> <LI><u>tolerance now expected in persent units</u></LI> That should be comparison in the first line and percent in the last.