old signature VS new signature

[Alem_alem]

Help pls

My required document - Citizenship Card, has my old signiture (which i do not use nowdays) and my applications signature is new signature i started using in last ten years, does that matter much to CIC IO?
or Should i write note explaining?

 

[rathika2011]

just write note explaining? just in case

 

[Alem_alem]

I need a respond please. ....

Any CIC expert here?