• The InChI development has been moved to GitHub. • The code fragments that existed after the former developer Igor Pletnev passed away were fused to a new code base. • Several thousand bugs, warnings and hints have been fixed, and the total number of Google ® OSS-Fuzz project reports has been reduced drastically. Inorganics and organometallics lack FAIR data repositories. The Findability, Accessibility, Interoperability and Reproducibility of data for inorganics and organometallics is very limited because of missing well-working chemical representations and identifiers. Not really fitting tools led to multiple workarounds to store these substance classes in databases. Ferrocene as a typical representative in this area is found quite frequently in multiple versions in the same database because the structure-based duplicate checks are not able to recognize the different structural depiction formats as representing the same compound. In 2011, haptic and coordinative bonds as zero-order-bonds were introduced into the Molfile format [23] and lead to an improved representation of inorganics and organometallics, However these enhancements have only be transferred into SMILES and InChIs on a very limited base. Most of the SMILES dialects do not understand them at all. Within the InChI community the demands on the identification of inorganics and organometallics have increased in the last few years when it became clear that only a unique identifier guarantees findable, accessible, interoperable and reproducible data, for instance in lab notebooks and databases. With the long-term goal to bring ML to molecular inorganic chemistry, the IUPAC funded InChI subgroup is working on a solution which allows the meaningful handling of molecular inorganic compounds including both classical coordination complexes as well as organometallic compounds.