Every distinct wording since 2010, newest first.
February 5, 2021 · Kaldheim
Effects can stop an object from having a specified ability. These effects say that the object “can’t have” that ability. If the object has that ability, it loses it. It’s also impossible for an effect or keyword counter to add that ability to the object. If a resolving spell or ability creates a continuous effect that would add the specified ability to such an object, that part of that continuous effect does not apply; however, other parts of that continuous effect will still apply, and that resolving spell or ability can still create other continuous effects. Continuous effects created by static abilities that would add the specified ability won’t apply to that object.
July 12, 2019 · Core Set 2020
Effects can stop an object from having a specified ability. These effects say that the object “can’t have” that ability. If the object has that ability, it loses it. It’s also impossible for an effect to add that ability to the object. If a resolving spell or ability creates a continuous effect that would add the specified ability to such an object, that part of that continuous effect does not apply; however, other parts of that continuous effect will still apply, and that resolving spell or ability can still create other continuous effects. Continuous effects created by static abilities that would add the specified ability won’t apply to that object.