We are versioning our client API, o1 below stands for version 1.
All starting with o- or oN-, where N is zero or a natural number, for example
o0-, o1-, o2-, o3-, …
All starting with data-o- or data-oN-, where N is zero or a natural number.
The namespaces Boomla, o and oN, where N is zero or a natural number.
All parameter starting with o- or oN-, where N is zero or a natural number,
for example o0-, o1-, o2-, o3-, …