Changelog of @hackage/agum 2.8

2019-10-15 John D. Ramsdell ramsdell@mitre.org

* agum.cabal (Version): Released as version 2.8

* src/Algebra/AbelianGroup/Main.hs (AnsErr): Updated code to
support the MonadFail proposal as implemented in base-4.13.0.0.

2018-01-06 John D. Ramsdell ramsdell@mitre.org

* src/Algebra/AbelianGroup/Main.hs (readM): Adapted the code to
work when Monad no longer has a fail method.

2015-04-27 John D. Ramsdell ramsdell@mitre.org

* src/Algebra/AbelianGroup/Main.hs (AnsErr): Added Functor and
Applicative instance so that the code compiles in GHC 7.10.
Thanks go to Douglas McClean.

* agum.cabal (Version): Released as version 2.6

2013-02-21 John D. Ramsdell ramsdell@mitre.org

* agum.cabal (Location): Added repository location.

* agum.cabal (Version): Released as version 2.5

2012-02-29 John D. Ramsdell ramsdell@mitre.org

* agum.cabal (Version): Released as version 2.4.  Also,
constrained the containers package to be 0.3 or greater.

* src/Algebra/AbelianGroup/UnificationMatching.hs:  Replaced
occurrences of Data.Map.foldWithKey by Data.Map.foldrWithKey as
the former has been deprecated.

2010-06-21 John D. Ramsdell ramsdell@mitre.org

* agum.cabal (Version): Released as version 2.3.

* agum.cabal (Build-Depends): changes dependency to
base >= 3 && <5, containers

2009-09-17 John D. Ramsdell ramsdell@mitre.org

* agum.cabal (Version): Released as version 2.2.

2009-09-14 John D. Ramsdell <ramsdell@.mitre.org>

* src/Algebra/AbelianGroup/IntLinEq.hs: Integer solutions to
linear equation solver was placed in its own module.

2009-09-13 John D. Ramsdell ramsdell@mitre.org

* src/Algebra/AbelianGroup/UnificationMatching.hs (unify): Changed
the result to be a substitution since unification always succeeds.

2009-09-05 John D. Ramsdell ramsdell@mitre.org

* src/Algebra/AbelianGroup/UnificationMatching.hs:  Added
reference to Andrew Kennedy's Ph.D. thesis as it contains a proof
of correctness of the implemented matching algorithm.

* agum.cabal (Version): Released as version 2.1.

2009-08-29 John D. Ramsdell ramsdell@mitre.org

* src/Algebra/AbelianGroup/UnificationMatching.hs (Substitution,
apply): Hid the representation of a substitution and supplied a
function for applying a substitution to a term.

* agum.cabal (Version): Released as version 2.0.