A Service Pack provides product updates and bug fixes. When a Service Pack is available on the Avaya Support website, the supporting information clearly states the issues addressed in the Service Pack. Even if you do not have problems, implement the Service Packs to keep the systems up-to-date and minimize the likelihood of future issues.
A patch provides critical security, performance, and stability fixes or updates. A Service Pack is a bundle of updates, fixes, enhancements, and previously released patches. In this document, the word patches refers to both patches and Service Packs.
You can install, download, and manage the patches from the System Platform Web Console.
You must install the following patches in addition to the currently installed software:
Communication Manager: You must install Communication Manager patches because MessagingCommunication Manager Messaging uses the Communication Manager platform that requires software updates.
MessagingCommunication Manager Messaging
Security
Kernel
Important Install kernel updates only during a planned downtime for system maintenance.
To download the latest patches and to obtain the necessary information, see Avaya Aura® Messaging Release Notes on the Avaya Support website at https://support.avaya.com/Products/P0792.
Important Before you apply a patch, back up the system. When you install the latest patch, the installation program automatically uninstalls the previous patch. So if you remove a patch, the removal does not reinstall the previous patch or revert the system to the previous state, that is, the state before the patch was installed. To revert the system to the previous state, you must reinstall the previous patch.
For more information, see the "Backup and restore" section of Administering Avaya Aura® Messaging.
CAUTIONPatch installation process affects the availability of the Messaging service.