What are Patches to our site and when are they applied?
Oracle Service Cloud, Product Updates
Previously known as One-off Release Updates or allsite patches
Patches are deployed when Oracle determines a need to update Oracle Service Cloud in a timely manner outside of the scope and schedule of Maintenance Packs and Critical Security Updates. For more information about updates please see Answer ID 2525: Oracle Service Cloud - Product Release Updates
Each Patch includes a small set of code changes. The content can include defect fixes, security vulnerability fixes or code changes that facilitate infrastructure changes. Patches do not include new features, schema changes, or changes to customer-facing user interfaces and APIs. Patches also will not change the look and feel of your site. The application of these updates is not expected to result in downtime or reduced functionality.
Patches are released when Oracle Service Cloud must be updated in a timely manner. These updates may also include fixes associated with known security vulnerabilities. Due to this, Oracle does not provide release notes or documentation for the contents of these updates.
These updates are considered Emergency Maintenance and they are not scheduled in advance. Refer to the Support Notifications portal for important service notifications relating to system updates.