Not sure I'd want to put something on mine that would mess it up either......... if it works fine as it is now and nothing really annoys you about it, why would you want to upgrade anyway and take that risk??????
Wish I could tell you how to check the version number (I know I saw it somewhere befor)...... I was sure I could find it in my owner's manual. No luck though, sorry.
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John 3:16 For God so loved the world, that He gave His only Son, that whoever believes in Him should not perish, but have everlasting life.