I bought this CD in 2017 and passed my theory: https://www.amazon.co.uk/gp/product/1843266164. But I didn't get my licence, and need to retake. Has anything in the theory changed? I never took practical lessons. I assume road signs don't change, and I assume my practical teacher will update me on anything important. I read of some changes in 2017 here: https://www.gov.uk/government/news/driving-test-changes-4-december-2017. Nothing on theory.