Deprecated constructions --Low Bug

[L-KH]

Deprecated constructions

Deprecated constructions: years, sha3, suicide, throw, and constant functions.

recommendation

Use keccak256 instead of sha3.
Use selfdestruct instead of suicide.
Use revert() instead of throw.
Use view instead of constant for functions.
Use days instead of years.

Links

https://solidity.readthedocs.io/en/latest/contracts.html#view-functions
ethereum/solidity#992
https://solidity.readthedocs.io/en/develop/control-structures.html#error-handling-assert-require-revert-and-exceptions