+DBN v2 delivers improvements to the `Metadata` header symbology, new `stype_in` and `stype_out` fields for `SymbolMappingMsg`, and extends the symbol field length for `SymbolMappingMsg` and `InstrumentDefMsg`. The entire change notes are available [here](https://github.com/databento/dbn/releases/tag/v0.14.0). Users who wish to convert DBN v1 files to v2 can use the `dbn-cli` tool available in the [databento-dbn](https://github.com/databento/dbn/) crate. On a future date, the Databento live and historical APIs will stop serving DBN v1.
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