The software described in this documentation is either in Extended Support or Sustaining Support. See for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

3.3 Applying Updates

Once you have set up the ULN channels, Oracle Yum Server repositories, or installation media repositories that yum should use, you can update all installed packages by running the following command:

# yum update

If your system is currently installed with Oracle Linux 6 GA, Update 1, Update 2, or Update 3, this command upgrades it to Update 4.

You can use the following command to update a specific package:

# yum update package

For example, to update the Z-shell package (zsh), you would enter:

# yum update zsh

For more information, see the yum(8) manual page.