Does this mean anything?

[ehaque]

I received a letter from Department of Justice and Equality today. Here's the content of the letter:

Dear XYZ,

I am directed by the Minister for Justice and Equality to refer to your application for naturalisation. I acknowledge your correspondence received in this office and any document enclosed. Please your reference number 10xxxxx-CITZ-11 on all future correspondence with this office.

Yours Sincerely
Fiona Cotter
Further Processing Team

Does this letter signify anything at all? This is the first letter that mentions my new reference no (instead of the old 68/ numbers).

[IQU]

when did you apply for citizenship.did you already had old ref number 68/10xx/11?

[Mentalist101]

They seem to be updating all the reference numbers once new correspondence has been sent to them.

There isn't anything wrong as a friend of mine received the same letter after changing her address and she had gotten her approval as well!