It looks like the Windows binaries for 0.3.0-prerelease were updated today. Awesome, thanks for that!
Starting up any of the 8 latest REPL's (32 or 64 bit, basic or readline, debug or not), before the Julia splash I see "Warning: redefining constant CPU_CORES." Hopefully this is harmless? It may be related to/triggered by https://github.com/JuliaLang/julia/commit/b5df426923fc350276d1fe370dcf28a5564fa49c? Or perhaps the previous binaries were built on a machine with the same number of cores as mine, and today's weren't? Either way, rebuilding the system image (by moving or deleting lib/julia/sys.ji then running bin/prepare-julia-env.bat) makes the warning go away. In case anyone else sees this and wonders whether it means anything... -Tony