CIAO 4.2 to 4.3 upgrade guide
Image data with a rotated tangent-plane projection are now displayed with North up (for both images and contours) rather than with the rotation as they were in CIAO 4.2.
The tangent-plane projection is the only supported WCS projection in CIAO 4.3 (in CIAO 4.2 the SIN projection was partly supported). Images and contours with a SIN projection can only be displayed in logical or physical systems.
Combining multiple plots or images with different coordinate systems in the same plot may not result in the same output.
The algorithm used to generate the names of coordinate systems has changed. This means that data coordinate system names which used to look like plot2_ax1ay2 now look like ds.0.0.0.3. Since they can no-longer be guessed from the plot and axis names, the info_coordinate or info_current commands should be used to find out the name.