Until now, the people named as your parents on your birth certificate were – well, accepted as your parents. You took your nationality from them, and if they died intestate, you were their next of kin and natural inheritor.
This is to change from today, at least for the purposes of UK nationality law. For birth certificates issued from today onwards, the Home Office will no longer automatically accept the person named as the father on a birth certificate as the natural father – which is not to say that they will not, but that they may not.
The circumstances in which they would query the relationship is not clear, but presumably this means that there will be an increased need for DNA tests to establish relationship.
