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ML.NET 1.7.0

docs/release-notes/1.7.0/release-1.7.0.md

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ML.NET 1.7.0

Moving forward, we are going to be aligning more with the overall .NET release schedule. As such, this is a smaller release since we had a larger one just about 3 months ago but it aligns us with the release of .NET 6.

New Features

ML.NET

  • Switched to getting version from assembly custom attributes- (#4512) Remove reliance on getting product version for model.zip/version.txt from FileVersionInfo and replace with using assembly custom attributes. This will help in supporting single file applications. (Thanks @r0ss88)
  • Can now optionally not dispose of the underlying model when you dispose a prediction engine. (#5964) A new prediction engine options class has been added that lets you determine if the underlying model should be disposed of or not when the prediction engine itself is disposed of.
  • Can now set the number of threads that onnx runtime uses (#5962) This lets you specify the number of parallel threads ONNX runtime will use to execute the graph and run the model. (Thanks @yaeldekel)
  • The PFI API has been completely reworked and is now much more user friendly (#5934) You can now get the output from PFI as a dictionary mapping the column name (or the slot name) to its PFI result.

DataFrame

  • Can now merge using multiple columns in a JOIN condition (#5838) (Thanks @asmirnov82)

Enhancements

ML.NET

  • Run formatting on all src projects (#5937) (Thanks @jwood803)
  • Added BufferedStream for reading from DeflateStream - reduces loading time for .NET core (#5924) (Thanks @martintomasek)
  • Update editor config to match Roslyn and format samples (#5893) (Thanks @jwood803)
  • Few more minor editor config changes (#5933)

DataFrame

  • Use Equals and = operator for DataViewType comparison (#5942) (Thanks @thoron)

Bug Fixes

  • Initialize _bestMetricValue when using the Loss metric (#5939) (Thanks @MiroslavKabat)

Build / Test updates

  • Changed the queues used for building/testing from Ubuntu 16.04 to 18.04 (#5970)
  • Add in support for building with VS 2022. (#5956)
  • Codecov yml token was added (#5950)
  • Move from XliffTasks to Microsoft.DotNet.XliffTasks (#5887)

Documentation Updates

  • Fixed up Readme, updated the roadmap, and new doc detailing some platform limitations. (#5892)

Breaking Changes

  • None