Sorry, to find out what functions and operators were available in the last-but-6 version of Saxon you're going to have to do the historical research yourself, I'm not going to do it for you. Each release has documentation stating what's implemented and what isn't. Is there any reason you can't move forward?
Information about Saxon 7.8 is at
Michael Kay 

From: [] On Behalf Of Roger Kovack
Sent: 09 February 2005 01:13
Subject: [saxon] Date durations in Saxon 7.8

Is there any straightforward way of adding, subtracting or comparing two dates; or a date and a number of days in Saxon 7.8? Is there anything in EXSLT that would do this in Saxon 7.8?


Roger Kovack
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