KB10758 - Does the purchase price include support and upgrades maintenance? For how long? What is the cost for this layer?

Yes. The license purchase of a TatukGIS product includes 12-months of maintenance, which includes all updates/upgrades, e-mail technical support, and log-in access to the licensed user forum for the purchased product. The typical TatukGIS pricing to extend the paid-up support/upgrades maintenance for each additional 12-month period is 45% of the price of a new license at the time that the extension is purchased.