New prefix with two digits between two letters.
Latest serial number format with two digits sandwiched between two alphabets and then followed by 6 digits. The total letters and numbers used is still 9. This is just a matter of shifting the second alphabets one pacing to the right to create a new format.
From A123456789 to AA12345678 to A1A2345678. This is the third format of serial numbers. With such a large population in China, would the authority just keep moving the alphabet to the right or add another digit to the serial number? In addition to the change in the prefix, the serial number has also reduced from 8 to 7 digits too. However one can also argued that the only alteration is the second letter prefix swap place with the first numeral digit, if you know what I mean.
This note has a year date of 2015. The designs are very similar to the 2005 print. However additional security features are added to the note. The most noticeable one is the security thread which is embedded and semi exposed on the right side of the note.