Original sentence: If there is little doubt that Jehovah's Witnesses have changed some of their doctrines over the past century, there is considerable controversy by a minority of observers over the significance of the changes.Proponents feel that such changes are clarifications over previously diluted doctrines instilled from centuries of what is deemed by them as apostasized Christianity and appreciate a progressive organization that seeks further enlightenment.Watch Tower literature recognizes that doctrinal changes have taken place though states: "Matters on which corrections of viewpoint have been needed have been relatively minor when compared with the vital Bible truths that they have discerned and publicized
Edited sentence: If there is little doubt that Jehovah's Witnesses have changed some of their doctrines over the past century, there is considerable controversy over the significance of the changes.Watch Tower literature recognizes that doctrinal changes have taken place but states: "Matters on which corrections of viewpoint have been needed have been relatively minor when compared with the vital Bible truths that they have discerned and publicized