Hi,
 
the actual version history states: … - More KSP bugfixes (spotted by Sebastian Mueller, fixed by Guillaume Boulmier) -  The main reason for me to update, because 0.8.3 was worse on KSP than 0.8.1.
Since 0.9.0 (bugfix tested OK on my unit tests)  the performance on KSP for multigraphs dramatically went down (feels like factor 50 slower!!!).
I did not change anything but the JGraphT version (0.8.1 -> 0.9.0)
Is there any chance to improve performance to what it was before, or is this the unchangeable side effect of the fix?
 
Thanks + Bye,
Claus