Support and test Go 1.22 (open-telemetry#5082)

* Update README

* Update changelog

* Update CI workflows

* Update Dockerfiles

* Update changelog entry PR number

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ env:
   # backwards compatibility with the previous two minor releases and we
   # explicitly test our code for these versions so keeping this at prior
   # versions does not add value.
-  DEFAULT_GO_VERSION: "~1.21.3"
+  DEFAULT_GO_VERSION: "~1.22.0"
 jobs:
   lint:
     runs-on: ubuntu-latest
@@ -90,7 +90,7 @@ jobs:
   compatibility-test:
     strategy:
       matrix:
-        go-version: ["~1.21.3", "~1.20.10"]
+        go-version: ["~1.22.0", "~1.21.3", "~1.20.10"]
         os: [ubuntu-latest, macos-latest, windows-latest]
         # GitHub Actions does not support arm* architectures on default
         # runners. It is possible to acomplish this with a self-hosted runner

.github/workflows/create-dependabot-pr.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "~1.21.3"
+          go-version: "~1.22.0"
           check-latest: true
           cache-dependency-path: "**/go.sum"
 

.github/workflows/dependabot.yml

@@ -13,7 +13,7 @@ jobs:
         ref: ${{ github.head_ref }}
     - uses: actions/setup-go@v5
       with:
-        go-version: "~1.21.3"
+        go-version: "~1.22.0"
         check-latest: true
         cache-dependency-path: "**/go.sum"
     - uses: evantorrie/mott-the-tidier@v1-beta

CHANGELOG.md

@@ -8,9 +8,13 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
+This release is the last to support [Go 1.20].
+The next release will require at least [Go 1.21].
+
 ### Added
 
 - Add the new `go.opentelemetry.io/contrib/instrgen` package to provide auto-generated source code instrumentation. (#3068, #3108)
+- Support [Go 1.22]. (#5082)
 
 ### Removed
 
@@ -990,6 +994,8 @@ First official tagged release of `contrib` repository.
 [0.7.0]: https://github.com/open-telemetry/opentelemetry-go-contrib/releases/tag/v0.7.0
 [0.6.1]: https://github.com/open-telemetry/opentelemetry-go-contrib/releases/tag/v0.6.1
 
+[Go 1.22]: https://go.dev/doc/go1.22
+[Go 1.21]: https://go.dev/doc/go1.21
 [Go 1.20]: https://go.dev/doc/go1.20
 [Go 1.19]: https://go.dev/doc/go1.19
 [Go 1.18]: https://go.dev/doc/go1.18

README.md

@@ -49,14 +49,19 @@ This project is tested on the following systems.
 
 | OS      | Go Version | Architecture |
 | ------- | ---------- | ------------ |
+| Ubuntu  | 1.22       | amd64        |
 | Ubuntu  | 1.21       | amd64        |
 | Ubuntu  | 1.20       | amd64        |
+| Ubuntu  | 1.22       | 386          |
 | Ubuntu  | 1.21       | 386          |
 | Ubuntu  | 1.20       | 386          |
+| MacOS   | 1.22       | amd64        |
 | MacOS   | 1.21       | amd64        |
 | MacOS   | 1.20       | amd64        |
+| Windows | 1.22       | amd64        |
 | Windows | 1.21       | amd64        |
 | Windows | 1.20       | amd64        |
+| Windows | 1.22       | 386          |
 | Windows | 1.21       | 386          |
 | Windows | 1.20       | 386          |