## Changes Introduced in V7.3.3

The following describes the most significant changes which occurred in the AST library between versions V7.3.2 and V7.3.3:

1. The FitsChanFitsChan class has new attributes CardNameCardName and CardCommCardComm, which hold the keyword name and comment of the current card.

2. When using the FitsChan class to read FITS-WCS headers that include polynomial distortion in the SIP format, any inverse transformation specified in the header is now ignored and a new inverse is created to replace it based on the supplied forward transformation. Previously, an inverse was created only if the header did not include an inverse. The accuracy of the inverse transformation has also been improved, although it may now be slower to evaluate in some circumstances.