While I'm sure you could look it up to know for sure, my guess is that not that much has changed since then. What has is probably related to rulesNregs or the latest digital technology. So my suggestion would be to focus on reading the book and understanding it... then when you get close to January, go online to the current question pool and make sure you can answer all the questions. If there are any technical issues in the latest pool that aren't covered in your book... feel free to ask one of us that are reasonably fluent on technical topics. As for new rulesNregs... you'll just have to memorize those.
Dave
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