The Central Bank is to start circulating a new series of euro banknotes across Ireland, as part of a eurozone roll-out of the new notes..
The new "Europa series" of banknotes will be phased in over a number of years, starting with the €5 note, which will enter into circulation on Thursday.
The new note is the same size and is similar in appearance to the existing note.
But it includes a number of new security features, including a portrait watermark of the Greek goddess Europa, raised lines along the sides of the note, a shiny emerald colour number and a portrait hologram of Europa.
The new €5 note will circulate alongside the existing €5 note, the Central Bank said.