Why is it a bad idea to override Plone's main_template.pt?

Question

I've heard it's a bad idea to override Plone's main_template.pt. Why is that a bad idea?

Answer 1

It's not considered a bad idea, as long as you are a bit careful about it, and know the implications.

You just have to make sure to do a comparison from the old to the new version of the standard template (ie. when upgrading from Plone 3.3 to 4.0) and update your custom main_template accordingly.

Between major versions, the main_template can change, and you want your custom version to have the same capabilities.