Thanks for responding, Doug. I upgraded today and so far so good with 'reboot to' tasks like you said.
So far my smoothest upgrade yet (knock on wood). The only thing I think I have found that I lost was my 're-deployment' menu was cleared out under settings - initial deployment. Luckily easy to rebuild that.
My only big remaining wish with Deployment Solution now is I wish the agent upgrade process was smoother after upgrading the server. It seems like we are still supposed to rebuild base images after upgrading to avoid the agent from blinking during post image tasks which can cause them to fail.
It's not a huge deal for us, as we are mostly hardware independent, so it's just updating one image, but there are some lab images we have that we rarely used that I don't have much desire to update beyond the yearly cycle we have on them. I am thinking to have techs call me if they need to image one and I'll disable the client update until the image is completed or something.