StateVar

1.2.1

• Explicitly mark Data.StateVar as Safe (or Trustworthy for GHC before 7.10).

1.2

• Added instances for ForeignPtr.

1.1.1.1

• Relaxed upper version bound for stm.

1.1.1.0

• Track recent move of Contravariant to base.

1.1.0.4

• Corrected HasUpdate’s superclass constraint.

1.1.0.3

• Removed a couple of redundant typeclass constraints.

1.1.0.2

• Relaxed upper version bound for transformers.

1.1.0.1

• Documentation changes only.

1.1.0.0

• Melded the API of foreign-var 0.1 with the API of StateVar 1.0.1.1
• Introduced HasUpdate, which permits a wider array of uses of these combinators, including usecases that must update atomically.
• Switched to multi-parameter typeclasses. This permits Ptr a to be directly employed as an instance of HasGetter, HasUpdate, and HasSetter.

1.0.1.1

• Infrastructure changes only.

1.0.1.0

• Exposed GettableStateVar, SettableStateVar and StateVar constructors to make writing own instances possible.
• Added Functor, Applicative and Monad instances for GettableStateVar.
• Various infrastructure improvements.

1.0.0.0

• Initial release.