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astropy v4.2.1 Release Notes

Release Date: 2021-04-01 // about 3 years ago

  • 🐛 Bug Fixes

    astropy.cosmology

    • 🛠 Fixed an issue where specializations of the comoving distance calculation for certain cosmologies could not handle redshift arrays. [#10980]

    astropy.io.fits ^

    • 🛠 Fix bug where manual fixes to invalid header cards were not preserved when saving a FITS file. [#11108]

    astropy.io.votable

    • NumericArray converter now properly broadcasts scalar mask to array. [#11157]

    astropy.table ^

    • 🛠 Fix bug when initializing a Table subclass that uses TableAttribute's. If the data were an instance of the table then attributes provided in the table initialization call could be ignored. [#11217]

    astropy.time ^

    • 🔄 Change epoch of TimeUnixTAI ("unix_tai") from 1970-01-01T00:00:00 UTC to 1970-01-01T00:00:00 TAI to match the intended and documented behaviour. This essentially changes the resulting times by 8.000082 seconds, the initial offset between TAI and UTC. [#11249]

    astropy.units ^

    • 🛠 Fixed a bug with the quantity_input decorator where allowing dimensionless inputs for an argument inadvertently disabled any checking of compatible units for that argument. [#11283]

    astropy.utils ^

    • 🛠 Fix a bug so that np.shape, np.ndim and np.size again work on classes that use ShapedLikeNDArray, like representations, frames, sky coordinates, and times. [#11133]

    astropy.wcs ^

    • Fix error when a user defined proj_point parameter is passed to fit_wcs_from_points. [#11139]

    Other Changes and Additions

    • 🔄 Change epoch of TimeUnixTAI ("unix_tai") from 1970-01-01T00:00:00 UTC to 1970-01-01T00:00:00 TAI to match the intended and documented behaviour. This essentially changes the resulting times by 8.000082 seconds, the initial offset between TAI and UTC. [#11249]