v0.6.3

[matthewfeickert]

This is a patch release from v0.6.2 → v0.6.3.

Important Notes

• With the addition of writing ROOT files in uproot v4.1.0 the xmlio extra no longer requires uproot3 and all dependencies on uproot3 and uproot3-methods have been dropped. (PR feat: Drop uproot3 for uproot4 for writing ROOT files #1567)
• All backends are now fully compatible and tested with Python 3.9. (PR feat: Add support for Python 3.9 across all backends #1574)
• The TensorFlow backend now supports compatibility with TensorFlow v2.2.1 and later and TensorFlow Probability v0.10.1 and later. (PR fix: Ensure TensorFlow backend Poisson compatibility with other backends #1001)
• The pyhf.workspace.Workspace.data() with_aux keyword arg has been renamed to include_auxdata to improve API consistency. (PR feat: Rename kwarg with_aux to include_auxdata in pyhf.Workspace.data API #1562)

Fixes

• The weakref bug with Click v8.0+ was resolved. pyhf is now fully compatible with Click v7 and v8 releases. (PR fix: Remove WeakList in favor of built-ins #1530)

Features

Python API

• Model parameter names are now propagated to optimizers through addition of the pyhf.pdf._ModelConfig.par_names() API. pyhf.pdf._ModelConfig.par_names() also handles non-scalar modifiers with 1 parameter. (PRs feat: Propagate model parameter names to optimizers #1536, feat: par_names handles non-scalar modifiers with 1 parameter #1560)

  >>> import pyhf
  >>> model = pyhf.simplemodels.uncorrelated_background(
  ...     signal=[12.0, 11.0], bkg=[50.0, 52.0], bkg_uncertainty=[3.0, 7.0]
  ... )
  >>> model.config.parameters
  ['mu', 'uncorr_bkguncrt']
  >>> model.config.npars
  3
  >>> model.config.par_names()
  ['mu', 'uncorr_bkguncrt[0]', 'uncorr_bkguncrt[1]']

• The pyhf.pdf._ModelConfig channel_nbins dict is now sorted by keys to match the order of the channels dict. (PR feat: Sort _ChannelSummaryMixin.channel_nbins by keys to match channels order #1546)

• The pyhf.workspace.Workspace.data() with_aux keyword arg has been renamed to include_auxdata to improve API consistency. (PR feat: Rename kwarg with_aux to include_auxdata in pyhf.Workspace.data API #1562)

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This discussion was created from the release v0.6.3.