2.1. Version 9.8.1¶
2.1.1. Language¶
2.1.2. Compiler¶
Added a new warning
-Wterm-variable-capturethat helps to make code compatible with the future extensionRequiredTypeArguments.Rewrite rules now support a limited form of higher order matching when a pattern variable is applied to distinct locally bound variables. For example:
forall f. foo (\x -> f x)
Now matches:
foo (\x -> x*2 + x)
2.1.3. GHCi¶
2.1.4. Runtime system¶
- On POSIX systems that support timerfd, RTS shutdown no longer has to wait for the next RTS ‘tick’ to occur before continuing the shutdown process. See #22692.
2.1.5. base library¶
2.1.6. ghc-prim library¶
2.1.7. ghc library¶
2.1.8. ghc-heap library¶
2.1.8.1. Included libraries¶
The package database provided with this distribution also contains a number of packages other than GHC itself. See the changelogs provided with these packages for further change information.
| Package | Version | Reason for inclusion |
|---|---|---|
| ghc | 9.7 | The compiler itself |
| Cabal-syntax | 3.9.0.0 | Dependency of ghc-pkg utility |
| Cabal | 3.9.0.0 | Dependency of ghc-pkg utility |
| Win32 | 2.13.3.0 | Dependency of ghc library |
| array | 0.5.4.0 | Dependency of ghc library |
| base | 4.18.0.0 | Core library |
| binary | 0.8.9.1 | Dependency of ghc library |
| bytestring | 0.11.4.0 | Dependency of ghc library |
| containers | 0.6.7 | Dependency of ghc library |
| deepseq | 1.4.8.0 | Dependency of ghc library |
| directory | 1.3.8.0 | Dependency of ghc library |
| exceptions | 0.10.7 | Dependency of ghc and haskeline library |
| filepath | 1.4.100.0 | Dependency of ghc library |
| ghc-boot-th | 9.7 | Internal compiler library |
| ghc-boot | 9.7 | Internal compiler library |
| ghc-compact | 0.1.0.0 | Core library |
| ghc-heap | 9.7 | GHC heap-walking library |
| ghc-prim | 0.10.0 | Core library |
| ghci | 9.7 | The REPL interface |
| haskeline | 0.8.2 | Dependency of ghci executable |
| hpc | 0.6.2.0 | Dependency of hpc executable |
| integer-gmp | 1.1 | Core library |
| libiserv | 9.7 | Internal compiler library |
| mtl | 2.3.1 | Dependency of Cabal library |
| parsec | 3.1.16.1 | Dependency of Cabal library |
| pretty | 1.1.3.6 | Dependency of ghc library |
| process | 1.6.16.0 | Dependency of ghc library |
| stm | 2.5.1.0 | Dependency of haskeline library |
| template-haskell | 2.20.0.0 | Core library |
| terminfo | 0.4.1.5 | Dependency of haskeline library |
| text | 2.0.1 | Dependency of Cabal library |
| time | 1.12.2 | Dependency of ghc library |
| transformers | 0.6.0.6 | Dependency of ghc library |
| unix | 2.8.0.0 | Dependency of ghc library |
| xhtml | 3000.2.2.1 | Dependency of haddock executable |