It's new in 2008 R2D2.

Until you upgrade to that version, you must provide the minimum of 137 parameters. It is also highly recommended to use some of the 255 optional parameters to ensure correct data is restored.

In R2D2, you are also permitted to restore from a planned future backup if you provide the correct parameters in an undocumented order. One catch though is that your server must be a DELL and you must type at 88 words per minute.