0.30.0

Release notes

Enhancements

• Added support for mapping symbols from instrument definitions to PitSymbolMap
  with a new on_instrument_def() method
• Added instrument definition compatibility trait InstrumentDefRec for generalizing
  across different versions of the instrument definition record
• Upgraded pyo3 version to 0.24.0

0.29.0

Release notes

Enhancements

• Added new venues, datasets, and publishers for ICE Futures US, ICE Futures Europe
  (Financial products), Eurex, and European Energy Exchange (EEX)
• Added new SkipBytes and AsyncSkipBytes traits which are a subset of the Seek
  and AsyncSeek traits respectively, only supporting seeking forward from the current
  position

Deprecations

• Deprecated AsyncRecordDecoder::get_mut() and AsyncDecoder::get_mut() as modifying
  the inner reader after decoding any records could lead to a corrupted stream and
  decoding errors

Bug fixes

• Fixed typo in -s/--map-symbols help text (credit: @wtn)

0.28.0

Release notes

Breaking changes

• Added CommoditySpot InstrumentClass variant and made InstrumentClass
  non-exhaustive to allow future additions without breaking changes

0.27.0

Release notes

Breaking changes

• Updated enumerations for unreleased US equities datasets and publishers

Enhancements

• Added new venue EQUS for consolidated US equities
• Added new dataset EQUS.MINI and new publishers EQUS.MINI.EQUS and XNYS.TRADES.EQUS
• Upgraded pyo3 version to 0.23.4 with improved support for Python 3.13

Bug fixes

• Fixed export of InstrumentDefMsgV3 to Python

0.26.0

Release notes

Enhancements

• Added v3 namespace in preparation for future DBN version 3 release. DBN version 2
  remains the current and default version
• Added v3::InstrumentDefMsg record with new fields to support normalizing multi-leg
  strategy definitions
  • Removal of statistics-schema related fields trading_reference_price,
    trading_reference_date, and settl_price_type
  • Removal of the status-schema related field md_security_trading_status
• Added from_instrument_def_v1_to_v3 and from_instrument_def_v2_to_v3 conversion
  functions to the C API
• Updated the value of the MAX_RECORD_LEN constant for the changes to
  InstrumentDefMsg in version 3
• Added initial support for merging DBN:
  • Decoding streams: MergeDecoder and MergeRecordDecoder structs
  • Metadata: MergeDecoder struct and Metadata::merge() method
  • In the CLI: specify more than one input file to initiate a merge
• Relaxed DecodeRecord trait constraint on StreamIterDecoder's inner decoder
• Added DbnMetadata implementation for StreamInnerDecoder if the inner decoder
  implements DbnMetadata
• Eliminate unsafe in From implementations for record structs from different versions

0.25.0

Release notes

Breaking changes

• Renamed VersionUpgradePolicy::Upgrade to UpgradeToV2 in preparation for a future
  DBN version 3

Enhancements

• Added v1 and v2 modules to allow unambiguously referring to the record types for
  a given DBN version regardless of whether the record type has changed. Previously
  versioned aliases only existed for record types that have changed between DBN versions
  • Added identical namespaces to databento_dbn Python package
• Changed dataset() method on MetadataBuilder to accept an impl ToString so now
  Dataset and &str can be passed directly
• Added type aliases for TBBOMsg, BBO1SMsg, BBO1MMsg, TCBBOMsg, CBBO1SMsg,
  CBBO1MMsg in Python

Deprecations

• Deprecated dataset module. The top-level Dataset enum and its const as_str()
  method provide the same functionality for all datasets. This module will be removed in
  a future version

0.24.0

Release notes

Enhancements

• Upgraded async-compression version to 0.4.18
• Upgraded proc-macro2 version to 1.0.92

Breaking changes

• Changed async DBN decoding to return Ok(None) when an incomplete record remains in
  the stream. This matches the existing behavior of sync DBN decoding

Bug fixes

• Added handling for UNDEF_TIMESTAMP in pretty_ timestamp getters for Python. They
  now return None in the case of UNDEF_TIMESTAMP

0.23.1

Release notes

Enhancements

• Added floating-point getters for price fields
• Added new IntelligentCross venues ASPN, ASMT, and ASPI
• Upgraded thiserror version to 2.0
• Upgraded pyo3 version to 0.22.6

Bug fixes

• Fixed pretty_activation getter in databento_dbn returning expiration instead
  of activation
• Fixed some pretty_ getters in databento_dbn didn't correctly handle UNDEF_PRICE

0.23.0

Release notes

Enhancements

• Added new None Action variant that will be gradually rolled out
  to historical and live GLBX.MDP3 data
• Added consistent escaping of non-printable and non-ASCII values when text encoding
  c_char fields
• Implemented Default for Action and Side
• Added support for Python 3.13 to databento_dbn
• Implemented missing Serialize for (with serde feature enabled) for Venue,
  Dataset, Publisher, Compression, SType, Schema, and Encoding

0.22.1

Release notes

Enhancements

• Removed support for Python 3.8 in databento-dbn due to end of life

Bug fixes

• Fixed buffer overrun in c_chars_to_str on non-null terminated input