definiens: when usedherein with respect to a Party, shall mean and include each and every claim, charge, complaint, demand, action, cause ofaction, suit, right, debt, sum of money, cost, reckoning, covenant, contract, agreement, promise, doing, omission, damage, execution, obligation, liability, and expense ( including attorneys ’ fees and costs ), of every kind and nature, whether at law orin equity, that such Party may have had in the past, may now have or may have in the future against the Released Parties, andwhich has arisen or arises directly or indirectly out of, or relates directly or indirectly to, any circumstance, agreement, activity, action, omission, event or matter occurring or existing on or prior to the Amendment Effective Date to the extentsuch claim relates to or arises under the License Agreement or the Option Agreement ; provided, however, that the ReleasedClaims shall exclude any and all rights to seek and obtain enforcement of, or a remedy or indemnification arising out of thebreach of, any obligation provided for in the License Agreement ( as amended by this Amendment ) occurring after theAmendment Effective Date