My app must provide the user with a comprehensive list of Spatial Reference Systems to select from. With GDAL 2.2.2, I did this by querying both 'gcs.csv’ and ‘pcs.csv’ from the GDAL_DATA directory. These files are no longer available in GDAL 3.5. So what’s the correct way to get a list of all the available SRSs now? Cheers, Nik.