Since the European Central Bank plans to redesign the notes every seven or eight years after each issue, a new 50 note was put into circulation on 4 April 2017.[1] New production and anti-counterfeiting techniques are employed on the new notes, but the basic design remained on the same theme (bridges and arches) and continues to use colours identical to the previous series. However, the new note is visibly distinguishable from the old one.[22]