Although most of the rationale still applies there's plenty of stuff that hasn't been updated like it suggesting 64-bit support isn't in yet or the code example that is basically a C program.
https://github.com/D-Programming-Language/dlang.org/pull/1133 addresses some of the problems on the page
Commits pushed to master at https://github.com/D-Programming-Language/dlang.org https://github.com/D-Programming-Language/dlang.org/commit/77324039087e9283f40244195857c2f9fd4712eb partial fix for issue 13624 https://github.com/D-Programming-Language/dlang.org/commit/5019e765fd2d68407cac2fd91927fac4935d371c Merge pull request #1133 from JackStouffer/issue13624 Fix for issue 13624 (Part 1)
Commit pushed to master at https://github.com/D-Programming-Language/dlang.org https://github.com/D-Programming-Language/dlang.org/commit/988af21485d14aaad56a4473973fb65c1e093eb1 Merge pull request #1135 from JackStouffer/issue13624 Fix for issue 13624 (Part 2)
Commits pushed to master at https://github.com/D-Programming-Language/dlang.org https://github.com/D-Programming-Language/dlang.org/commit/f5d968b12e786984607facce6cb18cdbfd42c611 fix issue 13624 https://github.com/D-Programming-Language/dlang.org/commit/ddcb76d4da476428636f58798e954379cda6096a Merge pull request #1146 from JackStouffer/issue13624 Fix for issue 13624 (Part 3)
Commits pushed to stable at https://github.com/D-Programming-Language/dlang.org https://github.com/D-Programming-Language/dlang.org/commit/77324039087e9283f40244195857c2f9fd4712eb partial fix for issue 13624 https://github.com/D-Programming-Language/dlang.org/commit/5019e765fd2d68407cac2fd91927fac4935d371c Merge pull request #1133 from JackStouffer/issue13624 https://github.com/D-Programming-Language/dlang.org/commit/988af21485d14aaad56a4473973fb65c1e093eb1 Merge pull request #1135 from JackStouffer/issue13624 https://github.com/D-Programming-Language/dlang.org/commit/f5d968b12e786984607facce6cb18cdbfd42c611 fix issue 13624 https://github.com/D-Programming-Language/dlang.org/commit/ddcb76d4da476428636f58798e954379cda6096a Merge pull request #1146 from JackStouffer/issue13624