Will nationwide exchange obsolete 20 pound notes in 2013?

Yes, the Bank of England announced that the old £20 notes featuring the image of economist Adam Smith would be withdrawn from circulation in 2013. This was part of a broader effort to update banknotes and incorporate new security features. The public was given ample notice to exchange their old notes for the new polymer version, which was introduced to enhance durability and reduce the risk of counterfeiting.