All- I've been pretty busy lately so just noticed this, but as of August 18 *all* the regression runs have broken during execution. The tail of the results log shows: - cxx11_char16_t : yes [47] - cxx11_char32_t : yes [47] - windows-sdk-supports-bcrypt : no [14] - windows-sdk-supports-bcrypt : no [51] error: Unable to find file or target named error: '/mnt/fs1/teeks99-06/run/boost_root/libs/charconv/build//stage' error: referred to from project at error: '../tools/check_build/test' Similar on windows: - cxx11_char32_t : yes [62] - windows-sdk-supports-bcrypt : yes [21] error: Unable to find file or target named error: '/C:/teeks99-09/run/boost_root/libs/charconv/build//stage' error: referred to from project at error: '../tools/check_build/test' Tom