[new product] GHC (Glasgow Haskell Compiler) (#6287)

* [new product] GHC

products/ghc.md

@@ -0,0 +1,166 @@
+---
+title: Glasgow Haskell Compiler (GHC)
+iconSlug: haskell
+category: lang
+permalink: /ghc
+alternate_urls:
+ - /haskell
+versionCommand: ghc --version
+releasePolicyLink: https://gitlab.haskell.org/ghc/ghc/-/wikis/GHC-status
+changelogTemplate: https://downloads.haskell.org/ghc/__LATEST__/docs/users_guide/__LATEST__-notes.html
+
+eoasColumn: Further releases planned
+eolColumn: Recommended for use
+releaseDateColumn: true
+
+identifiers:
+- repology: ghc
+- repology: haskell:ghc
+
+auto:
+  methods:
+  - git: https://gitlab.haskell.org/ghc/ghc.git
+    regex: ^ghc-(?P<major>\d+)[.](?P<minor>\d+)[.](?P<patch>\d+)-release$
+    template: '{{major}}.{{minor}}.{{patch}}'
+
+releases:
+
+- releaseCycle: "9.12"
+  releaseDate: 2024-12-16
+  latest: "9.12.1"
+  eoas: false
+  eol: false
+
+- releaseCycle: "9.10"
+  releaseDate: 2024-05-10
+  latest: "9.10.1"
+  eoas: false
+  eol: false
+
+- releaseCycle: "9.8"
+  releaseDate: 2023-10-09
+  latest: "9.8.4"
+  latestReleaseDate: 2024-12-02
+  eoas: true
+  eol: false
+
+- releaseCycle: "9.6"
+  releaseDate: 2023-03-10
+  latest: "9.6.6"
+  latestReleaseDate: 2024-07-01
+  eoas: false
+  eol: false
+
+- releaseCycle: "9.4"
+  releaseDate: 2022-08-07
+  latest: "9.4.8"
+  latestReleaseDate: 2023-11-10
+  eoas: true
+  eol: false
+
+- releaseCycle: "9.2"
+  releaseDate: 2021-09-29
+  latest: "9.2.8"
+  latestReleaseDate: 2023-05-26
+  eoas: true
+  eol: false
+
+- releaseCycle: "9.0"
+  releaseDate: 2021-02-04
+  latest: "9.0.2"
+  latestReleaseDate: 2021-12-25
+  eoas: true
+  eol: true
+
+- releaseCycle: "8.10"
+  releaseDate: 2020-03-24
+  latest: "8.10.7"
+  latestReleaseDate: 2021-08-27
+  eoas: true
+  eol: true
+
+- releaseCycle: "8.8"
+  releaseDate: 2019-08-25
+  latest: "8.8.4"
+  latestReleaseDate: 2020-07-15
+  eoas: true
+  eol: true
+
+- releaseCycle: "8.6"
+  releaseDate: 2018-09-21
+  latest: "8.6.5"
+  latestReleaseDate: 2019-04-23
+  eoas: true
+  eol: true
+
+- releaseCycle: "8.4"
+  releaseDate: 2018-03-08
+  latest: "8.4.4"
+  latestReleaseDate: 2018-05-29
+  eoas: true
+  eol: true
+
+- releaseCycle: "8.2"
+  releaseDate: 2017-07-22
+  latest: "8.2.2"
+  latestReleaseDate: 2017-07-22
+  eoas: true
+  eol: true
+
+- releaseCycle: "8.0"
+  releaseDate: 2016-05-21
+  latest: "8.0.2"
+  latestReleaseDate: 2017-01-11
+  eoas: true
+  eol: true
+
+---
+
+> [Haskell](https://www.haskell.org/) is a general-purpose, statically-typed, purely functional
+> programming language with type inference and lazy evaluation. The [Glasgow Haskell
+> Compiler](https://www.haskell.org/ghc/) (GHC) is a state-of-the-art optimizing compiler for
+> Haskell. It includes an interactive REPL, several profilers, alternative codegen backends, and
+> supports x86, AArch64, PowerPC, s390x, RiscV, WASM architectures.
+
+Version support policy of GHC is defined informally, as a working convention that can be found
+documented on [GHC wiki](https://gitlab.haskell.org/ghc/ghc/-/wikis/working-conventions/releases).
+
+Terminology
+-----------
+
+Because GHC is a *bootstrapping compiler* (meaning, it is written mostly in Haskell and compiles
+itself), there're versioning considerations not quite covered with SemVer.
+
+GHC defines:
+* **Major release** - `x.y.1` where `y` is even.
+* **Minor release** - `x.y.z` where `y` is even and `z ≥ 2`.
+
+The case `x.y.z` with `y` odd is reserved for development purposes. These versions are termed
+*snapshots* and are never announced for general availability.
+
+Release policies
+----------------
+
+* **Minor releases** generally do not introduce new interfaces, compiler feature additions neither
+  removals, nor major updates in libraries shipped with compiler. They only fix bugs or performance
+  issues in the previous release on that branch.
+
+* **Target [platforms](https://gitlab.haskell.org/ghc/ghc/-/wikis/platforms)** are segregated into
+  tiers 1, 2, and 3; and releases are gated on being in working condition on all Tier 1 platforms.
+  Every effort is made to fix bugs in Tier 2/3 platforms, but those are not treated as release
+  blockers.
+
+* **Source distributions** are provided to distribution packagers a week in advance, before official
+  binaries release is announced.
+
+* **Two-release policy**. Every release of GHC must be bootstrappable with the most recent minor
+  release of the two most-recent major releases of GHC.
+
+Release schedule
+----------------
+
+Major releases are made twice a year.
+
+Minor releases are made throughout the year, with no fixed schedule.
+
+Every release is preceded by one or more release candidates, announced on GHC mailing lists.