I'm considering requesting our shared hosting service (Verio Hosting 2000) to upgrade our store from 7.1.4 to the most recent version available (at least to 9.x, or v10 if supported).
Are there any serious issues I should know about before making this request?
For example, is support of older browsers (e.g. IE6) better, worse, or neutral? Any major work for me to do (e.g. converting templates, data, whatever)?