I have SourceCodeAuto on my local dev and nothing on production for ModelsMode. If I make doctype/template changes local and use Umbarco deploy to push the changes does the new model go with it and like a soft-reboot or something happen so the live environment uses the new model or do I ahve to reboot the live environmet to make the changes acivte (assume I use strongly typed properies in the template code)?

With SourceCodeAuto your models should be part of your site dll, so when you push it to live the models will be there already at startup 🙂

I am not doing a git push though I am doing an Umbraco Deploy of the doctype/template changes.

Oh interesting, in that case I think you would need to update your models manually

Interesting? Is this not the proper way to do things? If I am simply making/updating Document Types and templates am I not supposed to do that localy then use Umbraco Deploy (or even uSync) to push those up in order to avoide the 2-5 minutes of downtime that a deploy causes due to site reboot and index rebuilds?

The downtime is there for a reason, it ensures your views are compiled, your models are included and that the code can build. Your method will work on a lot of cases, but may also not in others. If you use your modelsbuilder models in code outside the views then that code may fail after pushing a change through deploy and then rebuilding the models.

I know that if I am doing things in custom classes or controllers I need to publish. Here I am only talking about updating/creating new Document Types and Templates