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Change history for the `swifttools.ukssdc` module

Changes made to this module after its original release will be documented here.

2024 May 29: v1.0.5 released as part of swifttools v3.0.22
- swifttools.ukssdc.xrt_prods v1.12 released: adds a srcrad parameter for light curves and spectra.
2023 May 24: Modification to the back end, light curve dict now includes an "Exposure" column in the hard/soft/ratio datasets.
2022 September 06. v1.0.3 relased as part of swifttools v3.0.5
- Further minor bugfixes in mergeUpperLimits().
- Fixed an issue only affecting Python >=3.9: the math.factorial() function now requires the argument to be an integer, it does not accept floats such as "3.0". This caused en error in bayesRate() as called by mergeUpperLimits() and mergeLightCurveBins().
2022 September 01. v1.0.2 relased as part of swifttools v3.0.2
- Minor bugfixes in mergeUpperLimits()