According to a Gulf Times article dated February 25, 2009, Qatar’s 100- and 500-rial notes originally issued in 2003 (Pick 24 and 25, respectively) can be exchanged for new notes at all banks through June 15; for ten years afterwards they can be redeemed only at the Qatar Central Bank. The old notes are being withdrawn in favor of the new versions of these denominations which were issued in 2007 with wide Optiks security threads.