@2bearstudio,
Thanks.
All 30 sites are on the same server, and many of the sites run different plugins. (Some the same, but some different.)
So I'm just nervous .. because I can't just test it on one site. I'd have to make the change for all of my sites.
But you think there will be NO issues in upgrading?
PS: I did have issues with some things when I upgraded PHP from an earlier version to the newer version. That's just part of why I'm a bit nervous.
Gary