D-Programming-Language/installer — pull request #4 by eco (2012-02-08 18:08:12+00:00)
Title: Make D1 unchecked by default

New users sometimes have difficulty because they've installed both versions of D which places both in their path, which means they sometimes try to compile D2 code with D1.

This makes the D1 install option unchecked by default. I believe this will help new users who are just learning D and might not known the difference between the versions. It also reflects that D1, while available and easily installed, isn't suggested for new users writing new code.