Jet Propulsion Library – Release 1.0 This is the first official release of the Jet Propulsion LIbrary. Tags: Release Notes, Jet Propulsion Library, Aerospace Related Resources Aircraft Engine Design: On-Demand Webinar Read 2019.2 Release Notes – Jet Propulsion Library 1.4 Read 2019.1 Release Notes – Jet Propulsion Library 1.3 Read