ctools 2.0 release (6 June 2022)
ctools 1.7.3 release (2 December 2020)
ctools 1.7.4 is a bug fix release for ctools release 1.7.
The following bugs were fixed:
[3628] - Add conda activation and deactivation scripts for csh
[3624] - Replace spectral model by file function in csspec
[3623] - Update :doxy:`csinfo` script