First off, I am a WordPress newbie so please be gentle! :)
Long story short, I have been given a project in mid-flight. Development computer has Wordpress 3.8.1 setup with Microsoft Webmatrix. A purchased theme with customizations and content exists on this box. The client has an already purchased domain and hosting package from network solutions. Network solutions states they using Wordpress 3.5.1. When it comes to deploying from local to the web to the Network Solutions site, will I run into major pain points with the site being on a newer version? Maybe I'm being overly paranoid but I don't want to tell my developer to keep working on this site if we have to blow everything away and revert to an older version or work entirely online within Network Solutions.
UPDATE: Network Solutions does allow you to upgrade Wordpress to the latest stable version which meant I didn't have to worry about this anymore.