Dear Apache folks, I'm needing some help gathering the older Spec documentation for Microsoft OneNote prior to year 2012. See https://docs.microsoft.com/en-us/openspecs/office_file_formats/ms-onestore/ae670cd2-4b38-4b24-82d1-87cfb2cc3725 and you'll notice that the specifications are available beginning 1.5 which was released in 2012.
How can I get the older specifications? -Nicholas