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OZ Says
Throughout the codebase, there are state variables that lack an explicitly declared visibility:
The YEAR_BASE state variable in ExponentialStaking.sol
The NEW_STAKE state variable in ExponentialStaking.sol
The YEAR_BASE state variable in OgvStaking.sol
For improved clarity, consider always explicitly declaring the visibility of variables, even when the default visibility matches the intended visibility.
Changes
Explicitly set these to public visibility.