We update our content constantly.  When you purchase content from us (like my book), we give you access to the updates. My book is in the 11th edition since it’s original publication.  When you buy my book, we put your name on our update list and every time I update the content, you have lifetime access to the new content. From my perspective, I am not just offering you words on a page, but a result – and that means always offering the latest most updated content I can provide.