We need to verify that all release versions in all FX docs are updated for JDK 9. Most already are, but we should double-check that we haven't missed any. Here are a couple that I found that need updating:

modules/graphics/src/main/docs/javafx/scene/doc-files/cssref.html
modules/fxml/src/main/docs/javafx/fxml/doc-files/introduction_to_fxml.html