becomes relevent from date of release and after discussion with industry it does not mean that any previous WPS is not able to be used as the changes were only minor I will try to find the comparitive notes I made and the release notes.
although when creating MDR’s it would be benefical to have the latest standard on documentation and this maybe be acheived in a small part by auditing your WPS and such, creating a change management register and updating records. ideally this would also include a new Test with the WPS. as long as the chain of evidence does not break in the change management register you could accomplish this with just a NDT such as UT this would only apply in low carbon steels.
Post note; you must detail the change made “you can call a widget a gidget as long as they are the same thing”