Hi,
now I found some time to test and it turned out that some information in
this thread is wrong. Therefore I removed the warning from release notes
again.
1) Imagemagick 7 does still contain the 'convert' utility. If you
install from source on unix, it is simply a symlink to 'magick'. If you
use the binary installer on windows, you need to tick the "Install
legacy utilities" option in order to install a convert.exe along
magick.exe (but for LyX this is no longer needed since we prefer
'magick' if it is available).
2) LyX works perfectly with Imagemagick 7. I tested that without the
convert symlink. I could not see any difference to IM 6 (and I made sure
I deleted the image cache and reconfigured). I guess what might have
lead to the assumption that IM 7 does not work is the fact that the info
inset produces text output for .svgz images, but an image link for .png
images. This should be changed, modern browsers support svg (but may
need uncompressing, I don't know).
Georg