v2.0.0

See https://specutils.readthedocs.io/en/latest/#changes-in-version-2 for more details about major changes between version 1.x and 2.x.

New Features

• Spectral axis can now be any axis, rather than being forced to be last. See docs
  for more details. [#1033, #1226]

• specutils.Spectrum now properly handles GWCS input for wcs attribute. [#1074]

• JWST reader no longer transposes the input data cube for 3D data and retains
  full GWCS information (including spatial). [#1074]

• Spectrum1D renamed to Spectrum. [#1126]

Other Changes and Additions

• Initializing a Spectrum with only a spectral axis (not full WCS) will now
  result in a GWCS matching the dimensionality of the flux array, rather than a
  1D spectral GWCS in all cases. [#1211, #1222]

• Spectrum arithmetic now checks whether the spectral axes of the two operand Spectrum
  objects are equal, and fails if they are not. [#1211]

• Added documentation about transitioning from 1.x to 2.x. [#1226]