Server updates are available to maintain support, add enhancements, or correct issues. Updates can include new versions of firmware (BIOS and SP/Oracle ILOM), new releases of tools and drivers, and updates to any other packaged components. When an update is released the changes are described in the update's Readme file, which is accessible at the following sources:
In Oracle System Assistant by clicking the Help button on the System Information page.
On My Oracle Support as the top-level Readme at https://support.oracle.com.
With any server package download from My Oracle Support.