Add Arrow Go 18.0.0 release post

_posts/2024-10-23-arrow-go-18.0.0-release.md

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+---
+layout: post
+title: "Apache Arrow Go 18.0.0 Release"
+date: "2024-10-23 00:00:00"
+author: pmc
+categories: [release]
+---
+<!--
+{% comment %}
+Licensed to the Apache Software Foundation (ASF) under one or more
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+(the "License"); you may not use this file except in compliance with
+the License.  You may obtain a copy of the License at
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+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
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+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+-->
+
+The Apache Arrow team is pleased to announce the v18.0.0 release of
+Apache Arrow Go. This release covers 35 resolved issues from
+11 contributors.
+
+## Release Highlights
+
+### Move to new Repository
+
+The Apache Arrow Go implementation has been shifted out of the Arrow monorepo
+and to its own repository now located at https://github.com/apache/arrow-go.
+This will enable fewer major version releases and facilitate more minor
+version/patch releases instead as it will detach the version number from the
+Arrow C++ and other implementations in the monorepo.
+
+Current users of Arrow Go will want to carefully note the breaking change to
+module paths this move causes. To upgrade to Arrow Go v18.0.0, ensure you
+properly update all relevant module paths in your `go.mod`, replacing all
+instances of `github.com/apache/arrow/go/` with `github.com/apache/arrow-go`.
+
+Existing Go related issues have been moved to the new repository and please file
+any new issues on the new repository instead of the Arrow monorepo.
+
+### Go Version
+
+With this release, the minimum Go version is now 1.22.
+
+### Arrow
+
+#### Canonical Extension Types
+
+There is a new [`extensions`](https://pkg.go.dev/github.com/apache/arrow-go/[email protected]/arrow/extensions) package 
+which implements [canonical extension types](https://arrow.apache.org/docs/format/CanonicalExtensions.html). This
+includes:
+
+* Opaque [GH-43455](https://github.com/apache/arrow/issues/43455)
+* JSON and UUID [GH-43764](https://github.com/apache/arrow/issues/43764)
+* Bool8 [GH-17682](https://github.com/apache/arrow/issues/17682)
+
+#### Features
+
+* Added the initial implementation for the Decimal32/Decimal64 data types [GH-120](https://github.com/apache/arrow-go/issues/120)
+* Added `is_null`, `is_not_null` and `is_nan` function kernels to the `compute` package [GH-134](https://github.com/apache/arrow-go/issues/134)
+
+#### Bug Fixes
+
+* Fixed an inconsistency in `ValueOffset` between String and Binary Arrays [GH-41](https://github.com/apache/arrow-go/issues/41)
+
+### Parquet
+
+* Added support for LZ4_RAW compression codec [GH-43790](https://github.com/apache/arrow/issues/43790)
+* Fixed recovery from a panic in the file reader [GH-124](https://github.com/apache/arrow-go/pull/124)
+
+## Contributors
+
+This release consists of contributions from 11 contributors in addition to the
+invaluable advice and support of the Apache Arrow community.
+
+```console
+$ git shortlog --perl-regexp --author='^((?!dependabot\[bot\]).*)$' -sn 8b7fde9..v18.0.0
+    17	Sutou Kouhei
+     8	Joel Lubinitsky
+     6	Matt Topol
+     6	Raúl Cumplido
+     2	Xin Hao
+     1	David Li
+     1	Nick Crews
+     1	Seb. V
+     1	Tom Scott-Coombes
+     1	rene-hess
+     1	yihao.dai
+```