Maintained by

**libraries@haskell.org**#### Module documentation for 4.12.0.0

This version can be pinned in stack with:

`base-4.12.0.0@sha256:6d1a13eaa72a57a4d4632de9683bdccc5a64ef41341d3bc40d2d5ac95322fb35,10247`

- Control
- Data
- Data.Bifoldable
- Data.Bifunctor
- Data.Bitraversable
- Data.Bits
- Data.Bool
- Data.Char
- Data.Coerce
- Data.Complex
- Data.Data
- Data.Dynamic
- Data.Either
- Data.Eq
- Data.Fixed
- Data.Foldable
- Data.Function
- Data.Functor
- Data.IORef
- Data.Int
- Data.Ix
- Data.Kind
- Data.List
- Data.Maybe
- Data.Monoid
- Data.Ord
- Data.Proxy
- Data.Ratio
- Data.STRef
- Data.Semigroup
- Data.String
- Data.Traversable
- Data.Tuple
- Data.Type
- Data.Typeable
- Data.Unique
- Data.Version
- Data.Void
- Data.Word

- Debug
- Foreign
- GHC
- GHC.Arr
- GHC.Base
- GHC.ByteOrder
- GHC.Char
- GHC.Clock
- GHC.Conc
- GHC.ConsoleHandler
- GHC.Constants
- GHC.Desugar
- GHC.Enum
- GHC.Environment
- GHC.Err
- GHC.Exception
- GHC.Exception.Type

- GHC.ExecutionStack
- GHC.Exts
- GHC.Fingerprint
- GHC.Float
- GHC.Float.ConversionUtils
- GHC.Float.RealFracMethods

- GHC.Foreign
- GHC.ForeignPtr
- GHC.GHCi
- GHC.Generics
- GHC.IO
- GHC.IO.Buffer
- GHC.IO.BufferedIO
- GHC.IO.Device
- GHC.IO.Encoding
- GHC.IO.Exception
- GHC.IO.FD
- GHC.IO.Handle
- GHC.IO.Handle.FD
- GHC.IO.Handle.Internals
- GHC.IO.Handle.Lock
- GHC.IO.Handle.Text
- GHC.IO.Handle.Types

- GHC.IO.IOMode
- GHC.IO.Unsafe

- GHC.IOArray
- GHC.IORef
- GHC.Int
- GHC.List
- GHC.MVar
- GHC.Maybe
- GHC.Natural
- GHC.Num
- GHC.OldList
- GHC.OverloadedLabels
- GHC.Pack
- GHC.Profiling
- GHC.Ptr
- GHC.RTS
- GHC.Read
- GHC.Real
- GHC.Records
- GHC.ResponseFile
- GHC.ST
- GHC.STRef
- GHC.Show
- GHC.Stable
- GHC.StableName
- GHC.Stack
- GHC.Stack.CCS
- GHC.Stack.Types

- GHC.StaticPtr
- GHC.Stats
- GHC.Storable
- GHC.TopHandler
- GHC.TypeLits
- GHC.TypeNats
- GHC.Unicode
- GHC.Weak
- GHC.Word

- Numeric
- Prelude
- System
- System.CPUTime
- System.Console
- System.Environment
- System.Exit
- System.IO
- System.Info
- System.Mem
- System.Posix
- System.Posix.Internals
- System.Posix.Types

- System.Timeout

- Text
- Type
- Unsafe

## Changes

Depends on 1 package

*(full list with versions)*:Used by 2316 packages in

**lts-13.11***(full list with versions)*:abstract-deque, abstract-deque-tests, abstract-par, accuerr, ace, action-permutations, active, ad, adjunctions, adler32, advent-of-code-api, aern2-mp, aeson, aeson-attoparsec, aeson-better-errors, aeson-casing, aeson-compat, aeson-diff, aeson-extra, aeson-generic-compat, aeson-iproute, aeson-picker, aeson-pretty, aeson-qq, aeson-typescript, aeson-utils, aeson-yak, al, alarmclock, alerts, alex, alg, algebraic-graphs, Allure, almost-fix, alsa-core, alsa-mixer, alsa-pcm, alsa-seq, alternative-vector,

*and many more*