The upgrade is not free because a significant fraction of the major changes included in version 2 are not simply upgrades to the original version 1 scenery but new components that required a comprehensive development effort. SAEZ v2 is entirely new, incorporates all major changes that have taken place at SAEZ since the publication of the original scenery, the most significant being the initial stages of a brand new terminal. It also features our latest modeling and texturing techniques, bringing our version of this important airport to the same level of detail, quality and performance of our newest products.