This is a post on the 3Hit Site.
This article is not only for 3 HTi customers, but for anyone that is using PTC Creo or Pro/ENGINEER.
Back on April 19, 2017, PTC announced that effective January 1, 2018, new software licenses for its core solutions (including Creo and Windchill) and ThingWorx platform will be available only by subscription in the Americas and Western Europe. Customers may continue to use their existing perpetual licenses and renew support on active licenses. (Read the full article here.)