is there an issue with rapport ext
My iMac says rapport ext is not longer supported. Should i be concerned
Doesn't matter---you should not be running Rapport.
It is banking security software that has never run properly on Macs. Early versions caused trouble with Safari in spite of legitimate attempts by the developers to make it better. Later versions, after IBM bought it--and stopped trying to fix the mac version--affected the entire system and not in a good way.
If your bank insists you run this software, that means its IT people are mentally stuck about 15 years in the past and think "Mac" is a burger. Do you want people like that protecting your money and identify???
And I am pretty sure that the warning is that the extensions will not be supported in future version of macOS. It is up to software developers to see that theyr prodcuts keep up with Mac OS advances.