INFO:Slither: Initializable contract not found, the contract does not follow a standard initalization schema. Reference: https://github.com/crytic/slither/wiki/Upgradeability-Checks#initializable-is-missing INFO:Slither: ContractV1.destination (tests/check-upgradeability/contractV1.sol#2) was not constant but ContractV2.destination (tests/check-upgradeability/contract_v2_constant.sol#2) is. Reference: https://github.com/crytic/slither/wiki/Upgradeability-Checks#variables-that-should-not-be-constant INFO:Slither: Variable missing in ContractV2 (tests/check-upgradeability/contract_v2_constant.sol#1-3): ContractV1.destination (tests/check-upgradeability/contractV1.sol#2) Reference: https://github.com/crytic/slither/wiki/Upgradeability-Checks#missing-variables INFO:Slither: Initializable contract not found, the contract does not follow a standard initalization schema. Reference: https://github.com/crytic/slither/wiki/Upgradeability-Checks#initializable-is-missing INFO:Slither:4 findings, 18 detectors run