XI 4.0:
What’s new…
Upgrade guide…
https://websmp208.sap-ag.de/~sapidb/011000358700001323242010E/sbo401_ds_upgrade_en.pdf
Release notes…
https://websmp209.sap-ag.de/~sapidb/011000358700001323852010E/sbo401_ds_relnotes_en.pdf
dnewton 
(BOB member since 2004-01-30)