What occurs if a testator makes changes to a will post-execution?

When a testator makes changes to a will after it has been executed, the act of crossing out provisions can indeed result in a partial revocation of the original will. This method of alteration is recognized by many jurisdictions, where the testator's intent to change specific parts of the will is evident through such physical modifications.

If the testator intends for certain provisions to be void by crossing them out, this indicates a clear desire to alter their estate plan, provided that the changes are made in a manner that shows clear intent and understanding. It is crucial, however, that these alterations do not contradict any formal requirements for executing a will, such as being signed by the testator or being witnessed.

The other options do not accurately describe the effects of post-execution changes. For instance, the notion that all changes are automatically invalid does not accommodate the legal recognition of the testator's intent through physical alterations like crossing out. Similarly, while changes becoming part of the original will could apply if they are properly executed amendments or codicils, simply crossing out provisions does not necessarily create new valid terms without clarity of intent and proper witnessing. Lastly, the statement that changes require re-execution to take effect overlooks the possibility for partial revocation through clear modifications,