Once a Service Pack is released, we no longer test against older builds so we strongly recommend all Service Packs are applied to ensure you are using the latest, fully supported version. A Service Pack will generally increment the 'Trainz-build' tag as these usually contain changes to the way content is configured or validated. These free updates provide a variety of fixes, improvements and upgrades to a product.

a new release with a new name), there may be one or more Service Pack released (i.e. Prior to a new 'Version' of Trainz being released (i.e. Users are encouraged to upgrade to a more recent version of Trainz to maintain support.

This is known as the 'end-of-support' date for the product. N3V Games typically maintain support for major product releases for at least four years from the initial release date.