A Service Pack provides product updates and bug fixes. When a Service Pack is available on the Avaya Support Web site, the supporting information clearly states the issues addressed in the Service Pack. You must implement the Service Packs even if you are not experiencing any problems. This keeps the systems up-to-date and minimizes the likelihood of any future impact from known 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 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
To download the latest patches and to obtain the necessary information, see Avaya Aura® MessagingCommunication Manager Release Notes on the Avaya Support Web site at https://support.avaya.com/css/Products/P0792.
For more information about patch installation, see Implementing Avaya Aura® Messaging.
Important Perform a system backup before applying any patch. 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.
Important Perform a system backup before applying any patch. 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 Communication Manager Messaging Documentation Library.
CAUTIONPatch installation process impacts MessagingCommunication Manager Messaging service availability.