🐛 Bug fixes

• (go/v4): Fix Docker builds failing when projects don’t include apis/, controllers/, or webhooks by updating .dockerignore to allow only Go source files and module metadata #5048
• (AutoUpdate/v1-alpha): Adjust comments on Auto Update workflow #5082
• (alpha generate command): Ensure kubebuilder reuses its own binary instead of relying on $PATH #5081
• (go/v4): Fix e2e test to validate that metrics are exported without asserting a controller-specific metric #5100
• (go/v4): Handle empty CRD directories in Makefile install/uninstall targets #5042

🎉 Thanks to all contributors!

What's Changed

• 🌱 Bump github.com/onsi/gomega from 1.38.1 to 1.38.2 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5059
• 📖 Bump sigs.k8s.io/kubebuilder/v4 from 4.7.1 to 4.8.0 in /docs/book/src/simple-external-plugin-tutorial/testdata/sampleexternalplugin/v1 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5061
• 🌱 Bump github.com/onsi/ginkgo/v2 from 2.25.1 to 2.25.2 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5065
• ✨ feat: Upgrade controller-gen from v0.18.0 to v0.19.0 by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5064
• ✨ Upgrade golang CI from v2.3.0 to v2.4.0 by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5063
• ✨ feat: upgrade controller-runtime from v0.21.0 to v0.22.0 by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5062
• 📖 Remove unit tests badge from README by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5067
• 🐛 (go/v4): Fix Docker builds failing when projects don’t include apis/, controllers/, or webhooks by updating .dockerignore to allow only Go source files and module metadata by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5048
• 🌱 Bump github.com/onsi/ginkgo/v2 from 2.25.2 to 2.25.3 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5077
• 📖 Bump github.com/spf13/pflag from 1.0.7 to 1.0.10 in /docs/book/src/simple-external-plugin-tutorial/testdata/sampleexternalplugin/v1 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5076
• 🌱 Bump actions/setup-node from 4 to 5 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5078
• 🌱 Bump actions/setup-go from 5 to 6 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5079
• 🌱 Bump github.com/spf13/cobra from 1.9.1 to 1.10.1 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5070
• 📖 add note about Windows support by @vitorfloriano in https://github.com/kubernetes-sigs/kubebuilder/pull/5080
• 🐛 (AutoUpdate/v1-alpha): Adjust comments on Auto Update workflow by @vitorfloriano in https://github.com/kubernetes-sigs/kubebuilder/pull/5082
• 🐛 (alpha generate command): Ensure kubebuilder reuses its own binary instead of relying on $PATH by @ashishkpathak-connect in https://github.com/kubernetes-sigs/kubebuilder/pull/5081
• 🌱 (e2e) upgrade certmanager from v1.16.3 to v1.18.2 by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5084
• 🌱 (e2e/docs): upgrade prometheus version used to run the tests by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5085
• 🌱 go: upgraded github.com/spf13/pflag v1.0.9 => v1.0.10 by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5086
• ⚠️ (helm/v1-alpha): Migrate from installCRDs=true to crds.enabled=true in GitHub action test-chart.yml by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5083
• 🌱 Bump github.com/spf13/afero from 1.14.0 to 1.15.0 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5091
• 🌱 Bump golang.org/x/text from 0.28.0 to 0.29.0 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5090
• 🌱 Bump helm.sh/helm/v3 from 3.18.6 to 3.19.0 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5095
• 🌱 Bump golang.org/x/tools from 0.36.0 to 0.37.0 by @dependabot[bot] in https://github.com/kubernetes-sigs/kubebuilder/pull/5094
• ✨ Upgrade controller-runtime from v0.22.0 to v0.22.1 by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5098
• ✨ Upgrade kustomize from v5.6.0 to v5.7.1 by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5099
• 🐛 (go/v4): Fix e2e test to validate that metrics are exported without asserting a controller-specific metric by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5100
• 🐛 (go/v4) Handle empty CRD directories in Makefile install/uninstall targets by @nerdeveloper in https://github.com/kubernetes-sigs/kubebuilder/pull/5042
• 📖 (docs) drop patchStrategy/protobuf tags from Conditions in Getting Started section by @pedjak in https://github.com/kubernetes-sigs/kubebuilder/pull/5104
• 📖 (doc): Add demo for auto-update plugin by @camilamacedo86 in https://github.com/kubernetes-sigs/kubebuilder/pull/5105

New Contributors

• @ashishkpathak-connect made their first contribution in https://github.com/kubernetes-sigs/kubebuilder/pull/5081
• @nerdeveloper made their first contribution in https://github.com/kubernetes-sigs/kubebuilder/pull/5042
• @pedjak made their first contribution in https://github.com/kubernetes-sigs/kubebuilder/pull/5104

Full Changelog: https://github.com/kubernetes-sigs/kubebuilder/compare/v4.8.0...v4.9.0