Jammy Key for Quantum Chemistry (JKQC) is another powerful tool that allows the extraction of coordinates, forces, and other properties from QC programs into a single com-pressed file. JKQC offers further manipulation of the stored dataframe including sorting, filtering, specific data printing, applying QC corrections, calculation of binding (and atomization) properties, and producing input files for e.g., the Atmospheric Clusters Dynamics Code (ACDC) or the Ion Mobility Software suite (IMoS). Consequently, analyzing large data sets with JKQC becomes more automated and faster. We used these advantages to upgrade the architecture of the Atmospheric Cluster Database (ACDB), conceived by J. Elm. Hence, the new version, ACDB 2.0, contains more cluster descriptions, takes less memory space, and the manipulation of the database is significantly improved. As a result, ACDB 2.0 presently encompasses over 1M entries of molecular cluster configurations/properties that are suitable for machine learning applications.