This section describes the recommended procedure for performing an upgrade.
Alfresco upgrade paths
When you upgrade Alfresco, it is recommended that you follow a structured upgrade path between versions.
Upgrade prerequisites checklist
This checklist describes the requirements and prerequisites necessary to begin planning for upgrading an existing Alfresco version to Alfresco One 4.2.
Upgrading Alfresco general procedure
This section describes the procedure for upgrading from a previous version of Alfresco. The process involves a new installation of the Alfresco binaries and configuration, and an in-place upgrade of a copy of the repository.
Large repositories require some additional consideration during an upgrade, such as optimization of the database and adding optional indices to the database for metadata queries.
Testing Alfresco upgrade
Upgrade testing checks that Alfresco is successfully upgraded and it is working as expected after the upgrade.