Release notes provide you with information on new, changed, and
removed functionality (features). This particular release notes
document explains the major differences between HP-UX 9.0 and HP-UX
10.0. It also describes changes for HP-UX 10.01, 10.10, and 10.20.
Release notes do not completely document all of the features of a
release. Instead, release notes contain high-level information and
provide pointers to more detailed operating system and
product-specific documentation.
Where appropriate, release notes also tell you about changes in the support
of products.