RE: Upgrading from GP2015 to a newer version
Hi Jennifer-
I wouldn't upgrade to 2016. As Richard said below -- you are just delaying the inevitable. May as well go to the latest and greatest.
We are doing that here -- next month we're upgrading from 2015 R2 to the latest.
Upgrading involves a lot of testing: not just systems stuff but also ensuring the users are trained, understand what will be happening, can do their jobs afterwards, etc. If your Windows Server and SQL Server versions are getting older, you should also look at replacing those too.
Hopefully you have a partner that is advising you on all of this.
There's lots of information out there -- between this forum, GPUG and searching the Internet.
If I can be of any assistance, let me know.
Thanks.
Joe