The 754 (2008) draft you link to is reasonably close to the final standard in content, but there are definitely a number of significant changes that came in the

The 754 (2008) draft you link to is reasonably close to the final standard in content, but there are definitely a number of significant changes that came in the two years between that draft and final publication (I'm "STC" from the change history, for context). It's not hard to find copies of the final standard online, but the availability issue is definitely something that the committee is aware of.