30-3-605. Discharge by cancellation or renunciation. (1) A person entitled to enforce an instrument may, with or without consideration, discharge the obligation of a party to pay the instrument:

(a) by an intentional voluntary act, such as surrender of the instrument to the party; destruction, mutilation, or cancellation of the instrument; cancellation or striking out of the party's signature; or the addition of words to the instrument indicating discharge; or

(b) by agreeing not to sue or otherwise renouncing rights against the party by a signed writing.

(2) Cancellation or striking out of an indorsement pursuant to subsection (1) does not affect the status and rights of a party derived from the indorsement.