diff --git a/CHANGES.md b/CHANGES.md
deleted file mode 100644
--- a/CHANGES.md
+++ /dev/null
@@ -1,3 +0,0 @@
-## [1.0.1.0]
-
-* Add `EnumSet.toRaw`.
diff --git a/README.md b/README.md
deleted file mode 100644
--- a/README.md
+++ /dev/null
@@ -1,36 +0,0 @@
-# bitwise-enum
-
-Efficient sets over bounded enumerations, using bitwise operations based on [containers](https://hackage.haskell.org/package/containers-0.6.0.1/docs/src/Data.IntSet.Internal.html) and [EdisonCore](https://hackage.haskell.org/package/EdisonCore-1.3.2.1/docs/src/Data-Edison-Coll-EnumSet.html). All operations apart from folds are constant-time. In many cases, the compiler may use constant folding to optimize `EnumSet`s away entirely. For example, in the following code:
-
-```hs
-import Data.Enum.Set as E
-
-data Foo = A | B | C | D | E | F | G | H deriving (Bounded, Enum, Eq, Ord)
-
-instance E.AsEnumSet Foo
-
-addFoos :: E.EnumSet Foo -> E.EnumSet Foo
-addFoos = E.delete A . E.insert B
-
-bar :: E.EnumSet Foo
-bar = addFoos $ E.fromFoldable [A, C, E]
-
-barHasA :: Bool
-barHasA = E.member A bar
-```
-
-With  -O  or  -O2 ,  `bar`  will compile to  `GHC.Types.W# 22##`  and  `barHasA`  will compile to  `GHC.Types.False`.
-
-By default, `Word`s are used as the representation. Other representations may be chosen in the class instance:
-
-```hs
-{-# LANGUAGE TypeFamilies #-}
-
-import Data.Enum.Set as E
-import Data.Word (Word64)
-
-data Foo = A | B | C | D | E | F | G | H deriving (Bounded, Enum, Eq, Ord, Show)
-
-instance E.AsEnumSet Foo where
-    type EnumSetRep Foo = Word64
-```
diff --git a/bitwise-enum.cabal b/bitwise-enum.cabal
--- a/bitwise-enum.cabal
+++ b/bitwise-enum.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           bitwise-enum
-version:        1.0.1.1
+version:        1.0.1.2
 synopsis:       Bitwise operations on bounded enumerations
 description:    Bitwise operations on bounded enumerations.
                 .
@@ -20,7 +20,17 @@
 license:        BSD3
 license-file:   LICENSE
 build-type:     Simple
+tested-with:
+    GHC ==8.6.1
+ || ==8.6.5
+ || ==8.8.4
+ || ==8.10.7
+ || ==9.0.2
+ || ==9.2.8
+ || ==9.4.5
+ || ==9.6.2
 
+
 source-repository head
   type: git
   location: https://github.com/jnbooth/bitwise-enum
@@ -38,7 +48,7 @@
   build-depends:
       aeson >=0.11 && <2.3
     , array >=0.5.1 && <0.6
-    , base >=4.5 && <5
+    , base >=4.12 && <5
     , deepseq >=1.1 && <1.6
     , mono-traversable >=1.0.12 && <1.1
     , vector >=0.11 && <0.14
diff --git a/package.yaml b/package.yaml
deleted file mode 100644
--- a/package.yaml
+++ /dev/null
@@ -1,64 +0,0 @@
-name:         bitwise-enum
-version:      1.0.1.1
-github:       "jnbooth/bitwise-enum"
-homepage:     https://github.com/jnbooth/bitwise-enum
-bug-reports:  https://github.com/jnbooth/bitwise-enum/issues
-author:       "Joshua Booth <joshua.n.booth@gmail.com>"
-maintainer:   "Joshua Booth <joshua.n.booth@gmail.com>"
-license:      BSD3
-license-file: LICENSE
-category:     Data, Data Structures, Foreign
-synopsis:     "Bitwise operations on bounded enumerations"
-description:  |
-    Bitwise operations on bounded enumerations.
-    .
-    ["Data.Enum.Set"] Constant-time sets using bit flags.
-    .
-    ["Data.Enum.Memo"] Constant-time lookup memoization for functions on enumerated types.
-
-dependencies:
-  - aeson >=0.11 && <2.3
-  - array >=0.5.1 && <0.6
-  - base >=4.5 && <5
-  - deepseq >=1.1 && <1.6
-  - mono-traversable >=1.0.12 && <1.1
-  - vector >=0.11 && <0.14
-
-ghc-options:
-  - -Wall
-  - -Wcompat
-  - -Widentities
-  - -Wincomplete-uni-patterns
-  - -Wincomplete-record-updates
-  - -ferror-spans
-  - -funbox-small-strict-fields
-
-library:
-  source-dirs: ./
-  ghc-options: -O2
-
-benchmarks:
-  enumset-benchmarks:
-    main: EnumSet.hs
-    source-dirs: benchmarks
-    dependencies:
-      - base
-      - bitwise-enum
-      - gauge >=0.2.5
-      - wide-word >=0.1.0.9
-    ghc-options:
-      - -rtsopts
-      - -threaded
-      - -with-rtsopts=-N
-      - -O2
-
-tests:
-  enumset-test-suite:
-    main: set-properties.hs
-    source-dirs: tests
-    dependencies:
-      - base
-      - bitwise-enum
-      - QuickCheck >=2.13.2
-      - test-framework >=0.8.2.0
-      - test-framework-quickcheck2 >=0.3.0.5
diff --git a/stack.yaml b/stack.yaml
deleted file mode 100644
--- a/stack.yaml
+++ /dev/null
@@ -1,1 +0,0 @@
-resolver: lts-21.5