A major upgrade is available: xxcore
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An upgrade is the process to install a new major version of the product (eg. from version 2.50 to 3.0).
Major versions include broad set of new features and usually require to train end users before deploying it into the production environment.
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An update is the process to install a new minor version of the product (called Maintenance Pack, MP) or newer versions of other modules installed in the instance.
Maintenance Packs usually include fixes to product defects or small enhancements and do not require end users to be trained.