parabolic and hyperbolic Keplerian orbit
The overview page in the generated maven site (src/site/markdown/index.md) and the equivalent in the javadoc (src/main/java/org/orekit/overview.html) both states that Orekit support "elliptical Keplerian" orbits when in fact parabolic and hyperbolic Keplerian orbit have been supported too for decades now.