Felden, TimmKrause, Felix2017-09-262017-09-262017https://dl.gi.de/handle/20.500.12116/4698In this paper we report experiences made in the mostly finished process of modernization of the Bauhaus toolchain. We discuss the replacement of a hard-to-change intermediate representation that is only accessible in Ada by a modern one that is both language-independent and easy-to-change. Furthermore, we describe how to set up a process such that even academic research projects can perform an affordable and safe migration.en0720-8928