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GDAL/OGR and any software that is based on it (Fiona, GeoPandas etc.) can only read DGN < v.8 by default. From the DGN Driver doc:

Microstation DGN files from Microstation versions predating version 8.0 are supported for reading  (a DGNv8 driver, using Teigha libraries, is available to read and write DGN v8 files).

The DGNv8 driver is not built-in by default and is only available when GDAL has been compiled against the proprietary (non open source) Open Design Alliance Teigha library

GDAL/OGR and any software that is based on it (Fiona, GeoPandas etc.) can only read DGN < v.8 by default. From the DGN Driver doc:

Microstation DGN files from Microstation versions predating version 8.0 are supported for reading 

(a DGNv8 driver, using Teigha libraries, is available to read and write DGN v8 files).

The DGNv8 driver is not built-in by default and is only available when GDAL has been compiled against the proprietary (non open source) Open Design Alliance Teigha library

GDAL/OGR and any software that is based on it (fiona, geopandas etc.) can only read DGN < v.8 by default. From the DGN Driver doc:

Microstation DGN files from Microstation versions predating version 8.0 are supported for reading (a DGNv8 driver, using Teigha libraries, is available to read and write DGN v8 files).

The DGNv8 driver is not built-in by default and is only available when GDAL has been compiled against the proprietary (non open source) Open Design Alliance Teigha library

GDAL/OGR and any software that is based on it (Fiona, GeoPandas etc.) can only read DGN < v.8 by default. From the DGN Driver doc:

Microstation DGN files from Microstation versions predating version 8.0 are supported for reading (a DGNv8 driver, using Teigha libraries, is available to read and write DGN v8 files).

The DGNv8 driver is not built-in by default and is only available when GDAL has been compiled against the proprietary (non open source) Open Design Alliance Teigha library

GDAL/OGR and any software that is based on it (fiona, geopandas etc.) can only read DGN < v.8 by default. From the DGN Driver doc:

Microstation DGN files from Microstation versions predating version 8.0 are supported for reading (a DGNv8 driver, using Teigha libraries, is available to read and write DGN v8 files).

The DGNv8 is not built-in by default and is only available when GDAL has been compiled against the proprietary (non open source) Open Design Alliance Teigha library:

GDAL/OGR and any software that is based on it (fiona, geopandas etc.) can only read DGN < v.8 by default. From the DGN Driver doc:

Microstation DGN files from Microstation versions predating version 8.0 are supported for reading (a DGNv8 driver, using Teigha libraries, is available to read and write DGN v8 files).

The DGNv8 driver is not built-in by default and is only available when GDAL has been compiled against the proprietary (non open source) Open Design Alliance Teigha library