This section points you to tools and other sources
of information you will need to upgrade from HP-UX 9.x to 10.x.
If you are upgrading from an HP-UX 9.x release to 10.01, 10.10, or 10.20,
refer to Upgrading from HP-UX 9.x to 10.x, which details the
steps you must take to upgrade.
Also see this chapter, "Major Changes for HP-UX 10.20",
Chapter 3, "Major Changes for HP-UX 10.10", and Chapter 4,
"Major Changes for HP-UX 10.0 and 10.01" in this document
for information on system changes that may require you to
make changes to make your 10.x system work correctly.
If you are installing (not upgrading) 10.01, 10.10, or 10.20, upgrading
from 10.0 to 10.01, 10.10, or 10.20, upgrading from 10.01 to 10.10 or 10.20,
or upgrading from 10.10 to 10.20,
see Installing HP-UX 10.20 and Updating HP-UX 10.x to 10.20.