Texas Estates Code - EST § 257.101. Declaratory Judgment Construing Will

(a) On application and notice as provided by Chapter 37, Civil Practice and Remedies Code, the court may hear evidence and include in an order probating a will as a muniment of title a declaratory judgment:

(b) A declaratory judgment under this section is conclusive in any suit between a person omitted from the judgment and a bona fide purchaser for value who purchased property after entry of the judgment without actual notice of the claim of the omitted person to an interest in the estate.

(c) A person who delivered the testator's property to a person declared to be entitled to the property under the declaratory judgment under this section or engaged in any other transaction with the person in good faith after entry of the judgment is not liable to any person for actions taken in reliance on the judgment.