FM19 introduced 2 new functions:
I'm already using them in ad hoc situations.
For those folks doing services, most APIs totally abstract (hide) the file path directions ("/" vs ""), so you never need to worry about Windows or Linux/Unix path types. Therefore, no function/method is necessary in those external service situations.
Please notice that PosixPath is 1, WinPath is 2 and URLPath is 3.
If you use those functions in a Let Statement, please notice that your own defined variables take precedence and you can define your own variable named WinPath for example.