Hello Hugh,

I would recommend installing the update that you are eligible to receive so you can take advantage of any fixes, and new features. Also, 2018 has not been supported for over a year, so should you need assistance you would need to install the update or reach out to a certified consultant if you are unable to find an answer in the Sage Knowledgebase.

Thank you very much for your reply.  I may do this.  If not is there a way to keep the "update notification" from continually popping up when I exit Sage?

No. As long as there is an update that you qualify to receive it will always prompt you to install when there is one available.

Thanks