# Revision history for hierarchical-env ## 0.2.0.1 -- 2021-05-08 * Relax library dependency (`method`) ## 0.2.0.0 -- 2021-04-28 * Change how to specify the super environment * Before: Specify by adding type instance for `Super env` ```haskell data Env = Env !BaseEnv !Int deriveEnv ''Env type instance Super Env = BaseEnv ``` * After: Wrapping the super environment field with `Extends` ```haskell data Env = Env !(Extends BaseEnv) !Int deriveEnv ''Env ``` * Fix the type error bug occurs when hiding dependencies. ## 0.1.0.0 -- 2021-04-22 * First version. Released on an unsuspecting world.