A1: No, it's not like for PACS that you get a notification whenever a new calibration tree is available. Usually a new version of HIFI calibration comes always (and only) with every new major version of HIPE, but not more frequently.

Q2: Is there a list of known spurs available?

A2: Yes, there is a catalogue that you can inspect coming as part of the calibration files delivered through the HSA where a detailed list of known spurs is provided, with indication of the frequency at which they are seen and their main characteristics. These frequencies are flagged/masked in the pipeline so that you do not need to care about them.