The new note will have a new security feature in the form of a "portrait window" to make it more difficult to forge.
When the banknote is held against the light, the window becomes transparent and reveals a portrait of the mythological figure Europa, visible on both sides of the note.
"The portrait window is a real innovation in banknote technology,"
The aim was "to ensure that the euro notes continue to be resilient against counterfeiting. This will reinforce the trust that the 338 million citizens across the euro area place in their banknotes."
According to the ECB, the 20-euro note is one of the most widely used of all the euro banknote denominations,
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