Conn. Gen. Stat. § 42-483: Acceptance of partial commission not deemed a release.

The acceptance by a sales representative of a partial commission payment from a principal shall not constitute a release by such sales representative of any other commissions which such sales representative claims are due except if such payment is made pursuant to a binding and final written settlement agreement and release. Any full release of all commissions claimed to be owed by a sales representative as a condition to a partial commission payment shall be null and void.