The old version is not phycially on the internet any more so it should not be possible to download it. Somtimes Safari remembers a page in its cache and loads that instead of the new one. Try "Reload Page" command.
But if if the page you view says Feb version, I expect downloading will get build 3 because that file has replaced build 2, which is no longer available.
I don't know if any browser would save the entire download in its cahe. I just downloaded and it is build 3 that comes down. You could empty cacher for your browser if you still do not get it.
John