[pjmlp]

It always did, at least in NTFS.

What did not, and still does not, is to create them via Windows Explorer.

You can create them just fine from the command line, or via Windows APIs.

[eropple]

You can create them in Windows Explorer with a little trick: type the name with a trailing dot. Entering ".vimrc." will save as ".vimrc", no trailing dot.

[pjmlp]

Great! I was not aware of it.