Moving internal door - does the new need to comply with recent fire regs?

[Draughtsman]

Would the fire resistance of the new door need to be in line with current requirements? Existing doors are all stained and waxed 6 panel pine, so it would look a bit odd to have a modern fire door there.

Thank y'all kindly.

Dain

 

[ktuludays]

Who'd know except you?