A brief summary of the biggest changes since the last stable release of Go, r60.(Most of the utility commands, including 6g/8g, 6l/8l, 6cov/8cov, gotype, gopprof, and 6prof/8prof are now under go tool <6g/pack/prof/...>. See go tool for a full list.) Go 1 has done away with Makefiles, which were always a temporary solution. Instead, everything—how to get a package, how to compile it, and how to te