This phase characterizes the latest versions of Siav products. A product in Mainstream phase grows in functional terms, it is fully supported in order to correct deficiencies and to adapt itself to new versions of operating systems, changes in regulations, etc.

It represents the full maturity of the application; generally the transition of the software to a Full Support version is done at the launch of a new Main release of the product. In this phase are guaranteed the adeguative amendments and correction of anomalies.

This is the last phase of the life of a specific version of a product, in which generally Siav does not guarantee customer assistance in the Application Management services context.