Where are the Entity Relations shapes and arrowheads in Draw?

In the Release notes it is stated (LibreOffice 5.3: Release Notes - The Document Foundation Wiki) that there are new arrowheads for using in making ERD (Entity Relationship Diagrams). These do not show in my installation of 5.3.1. Where do I find them?

They should be available as line property, where you can specify start and end style.

Sry, they are not. Maybe I should try to reinstall?

The arrowheads are defined in standard.soe located in INSTDIR/share/palette (see this commit). If they aren’t there, then you either could add them yourself, of reinstall.

My guess would be, that something prevented updating the file, e.g. permissions or user modifications?