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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project is in the process of adopting Semantic Versioning.

Unreleased

Added

Changed

  • Removed the vaem:revision triples that were causing retention of v2.1 strings in the URIs

Fixed

  • Corrected the qudt:ucumCode of unit:TeraW-HR-PER-YR to "TW.h/a" by Jurek Müller

2.1.46 - 2024-12-09

Added

  • QUDT Schema
    • Add the qudt:altSymbol property to support using multiple symbols with a unit/quantitykind alongside the primary one, which isqudt:symbol
  • New QuantityKinds
    • qk:AmountOfSubstanceIonConcentration as a narrower kind of qk:Concentration.
    • qk:CoefficientOfPerformance by lazlop
    • qk:CompoundPlaneAngle
    • qk:CountRate ( units: unit:NUM-PER-SEC, unit:NUM-PER-HR, unit:NUM-PER-YR)
    • qk:CurrentOfTheAmountOfSubstance (replacesqk:CurrentOfTheAmountOfSubtance)
    • qk:RotationalFrequency (units: unit:Hz, unit:REV-PER-MIN, unit:REV-PER-HR, unit:REV-PER-SEC)
    • qk:VaporPermeability (unit: unit:KiloGM-PER-PA-SEC-M)
    • qk:VaporPermeance (for what used to be qk:VaporPermeability, see 'Changed')
  • New Units
    • unit:CYC-PER-SEC
    • unit:KiloLM
    • unit:CD-PER-KiloLM
    • unit:CI (replaces unit:Ci)
    • unit:FLIGHT (replaces unit:Flight)
  • Other Additions

Changed

  • Enforce at most a single qudt:symbol for all instances.
  • Delete spurious qudt:symbol values in a number of quantity kinds
  • Correct the conversion offset for MilliDEG_C
  • Rename qk:VaporPermeability to qk:VaporPermeance and change all unit associations accordingly.
  • Unify PER-X symbols to the 15:1 majority pattern, "/x" where "1/x" is used
  • Unify NUM-PER-X symbols to always represent NUM as # (as has already been used in unit:NUM)
  • Remove qk:NumberDensity from unit:PER-M3
  • Make qk:RotationalFrequency exactMatch of qk:RotationalVelocity, remove broader qk
  • Make qk:AngularFrequency exactMatch of qk:AngularVelocity, remove broader qk

Deprecated

  • unit:Ci (replaced by: unit:CI)
  • unit:Flight (replaced by: unit:FLIGHT)
  • qk:CurrentOfTheAmountOfSubtance (replaced by qk:CurrentOfTheAmountOfSubstance)
  • unit:CFU (replaced by: unit:NUM) - The CFU (colony forming unit) is a context-dependent unit that should be part of an ontology with narrower scope than QUDT.

2.1.45 - 2024-11-15

Changed

  • Changed the name of the collections folder to validation.
  • Remove all version suffixes from all source files, i.e., -v2.1.ttl becomes .ttl

Fixed

  • Added skos:broader relations to a number of quantity kinds that had none. Note that it is ok for a quantity kind to have no broader quantity kind, but these were missing.
  • Changed the erroneously used 'qudt:hasDimensionVector' property in vocab/types/VOCAB_QUDT_DATATYPES-v2.1.ttl file with with a new property qudt:dimensions that denotes the dimensions of a matrix.
  • Introduced a maven based build process to automate the manual tasks required for merging PRs and making releases. This change does not affect the content of the ontologies.
  • Replaced (hopefully) all occurrences of hr as a symbol for unit:HR with h.
  • Add unit:NUM-PER-MilliL

2.1.44 - 2024-10-27

Fixed

  • A new quantity kind, ElevationRelativeToNAP, has been added to support the Amsterdam Ordnance System (thanks @RiX012).
  • Big housecleaning month! Many of the unused graphs that have been lying around the repository have been moved to a behind-the-scenes repository, including references to some of the unused concepts in our active graphs. If you have been quietly using them yourself in your own work and would like us to restore any of them, please let us know in a new Issue. Otherwise, we now have a more streamlined repository while retaining all the functionality you have been depending on.
  • The qudt:currencyNumber relation now points to a string with the currency code, rather than an integer. This makes sense because it is not used for computation - it is a code in the true sense. (Thanks for this fix, @fkleedorfer)
  • A number of units now point to quantitykind:MassConcentration in addition to MassDensity and Density. (thanks @J-meirlaen). (MassDensity and Density are already declared as qudt:exactMatch. MassConcentration will be included in these declarations in the future.)