How to search properties in older version document?

[ranjitsinh_reva]

Hi,
How can I search properties of older version documents?
For example,
Document-xxx version 1.0 has following properties.
Key   value
p1    abc
p2    def
p3    xxx

Document-xxx version 2.0 has following properties.
Key   value
p1    yyy
p2    zzz
p3    xxx

Now When I search using keyword "xxx" then it will give me both documents as result.

Is there any approach to get above result?

[scouil]

AFAIK Alfresco4 doesn't search on document versions.
However, if I recall the Alfresco summit conference well, Alfresco5 does allow it