Name change AFTER U.S Citizenship

[Noman74]

If one decides to change the name AFTER U.S Citizenship but hasn’t applied for the U.S Passport yet, do you have to get a new Certificate of Citizenship displaying new name before you apply for the passport (showing new name) or Old Certificate + Court Order letter (showing new name) should be sufficient to get you a Passport showing new name?
Thanks

 

[Bobsmyth]

Old certificate and court order name change is sufficient.