The outage time that
is required for applying a maintenance release varies from site to
site. Installing product updates is only a small part of applying
a maintenance release. When estimating the outage time for your site,
you must also include time for configuring your Web application servers,
restoring customizations, and completing any post-configuration steps
for products at your site. To estimate how long it will take to apply
a maintenance release, identify the steps in the “Product-Specific
Details and Post-Configuration Requirements” part that you
need to complete.