kustomize: download ældre versioner

This release eliminates dependencies and compressed blobs that were an issue when bumping kustomize-in-kubectl.
No functional changes in kustomize.
chore
#6310: chore: bump to Go 1.27 and latest kube-openapi
#6318: Update kyaml to v0.21.3
#6320: Update cmd/config to v0.21.3
#6321: Update api to v0.21.3

Introduction
In this release, we implemented refactoring to update dependencies and add new features.
This release adds the kustomize edit add configuration and kustomize edit remove component commands. #6037 #6083
The built-in OpenAPI schema is now loaded from a pre-compiled bundle embedded in the binary. #6190
The schema itself is still based on Kubernetes v1.21.2, so the output of kustomize build is not expected to change. If you notice any difference, please file an issue.
Feature
#6037: feat: add support for 'kustomize edit add configuration' command
#6083: Add kustomize edit remove component command
fix
#6263: fix: report an error when the fetched openapi schema is not JSON
Dependencies
#6075: update go 1.25.7
#6078: bump go-git and x/crypt
#6085: update otel lib to v1.40.0
#6134: drop 'go-spew' dependencies and update dependencies
#6138: bump k8s.io/kube-openapi, drop github.com/mailru/easyjson
#6186: bump/go v1.26.5
#6187: update vuln dependencies at 2026/07
#6236: chore: bump stretch/testify pkg to remove old yaml dependencies
#6248: build(deps): bump golang.org/x/text from 0.38.0 to 0.41.0
#6249: build(deps): bump go.yaml.in/yaml/v2 from 2.4.2 to 2.4.4
#6251: build(deps): bump github.com/go-errors/errors from 1.4.2 to 1.5.1
#6254: build(deps): bump github.com/google/gnostic-models from 0.7.0 to 0.7.1
#6255: build(deps): bump google.golang.org/protobuf from 1.36.11 to 1.36.12
#6256: build(deps): bump golang.org/x/sys from 0.45.0 to 0.47.0
#6266: build(deps): bump golang.org/x/text from 0.41.0 to 0.42.0
#6267: build(deps): bump golang.org/x/sys from 0.47.0 to 0.48.0
#6273: bump go-git, kin-openapi and k8s.io
chore
#6190: chore: refactor read scheme to openapi from kubernetes api definition
#6274: build: use the golangci-lint v2 with release binary
#6305: Update kyaml to v0.21.2
#6306: Update cmd/config to v0.21.2
#6307: Update api to v0.21.2

Introduction
This release completes a fix for namespace propagation that occurred in v5.8.0. https://github.com/kubernetes-sigs/kustomize/issues/6031#issuecomment-3594321206
Also addressed the breaking changes introduced in helm v4. #6016
fix
#5990: fix: allow empty patches files
#6016: fix: support helm v4 beside v3
#6038: Fix a failing test
#6044: Fix namespace propagation problem at v5.8.0
Dependencies
#6057: Upgrade json-patch to v4.13.0 to remove pkg/errors dependency
chore
#6065: Update kyaml to v0.21.1
#6066: Update cmd/config to v0.21.1
#6067: Update api to v0.21.1

Feature
#5679: implements to replacements value in the structured data
#5863: Add regex support for Replacement selectors
#5930: feat: add PatchArgs API type to populate patch options
fix
#5971: fix: performance recession when propagating namespace to helm
#5940: fix: Propagate Namespace correctly to Helm
#5942: fix fnplugin storagemounts validation
#5958: fix: make AbsorbAll conflict error more verbose
#5961: refactor: nested format string
#5967: Fix infinite loop in HTTP client by validating URLs before requests
#5985: fix(kyaml/yaml): minor nil safety fix for RNode.Content etc
#5991: Fix duplicate key error when adding multiple labels with --without-selector
Dependencies
#5962: chore: update dependencies from security alert
#5959: update go 1.24.6
chore
#6007: Update kyaml to v0.21.0
#6008: Update cmd/config to v0.21.0
#6009: Update api to v0.21.0

#5943: drop shlex dependency
#5948: Update kyaml to v0.20.1
#5949: Update cmd/config to v0.20.1
#5950: Update api to v0.20.1

Feature
https://github.com/kubernetes-sigs/kustomize/pull/5630: Add static value source for replacement
https://github.com/kubernetes-sigs/kustomize/pull/5921: feat: Add images suport for Image Volumes
https://github.com/kubernetes-sigs/kustomize/pull/5771: fix: Allow patches with empty files with multiple newlines or comments
https://github.com/kubernetes-sigs/kustomize/pull/5865: feat(helm): allow the use of devel alias for helmcharts
fix
https://github.com/kubernetes-sigs/kustomize/pull/5846: fix: Get version from the BuildInfo.Main.Version if not found in deps and build flag
https://github.com/kubernetes-sigs/kustomize/pull/5859: fix: Don't panic on multiple $patch: delete strategic merge patches in a single patch file
https://github.com/kubernetes-sigs/kustomize/pull/5877: fix: make private one field in replacements transformer struct that had a missing JSON tag
Dependencies
#5847: replace deplecated package github.com/google/shlex with github.com/carapace-sh/carapace-shlex
#5873: Bump to github.com/spf13/viper v1.20.0
#5931: Drop usage of forked copies of goyaml.v2 and goyaml.v3
chore
https://github.com/kubernetes-sigs/kustomize/pull/5882: Set Git messages to English for TestRemoteLoad_LocalProtocol
#5934: Update kyaml to v0.20.0
#5935: Update cmd/config to v0.20.0
#5936: Update api to v0.20.0

Announce
This release introduces a unified internal package version (v0.19.0) across the entire kustomize repository.
ref. #5800
Chore
#5809: fix: "edit add labels" make labels handle -f flag same as commonLabels
Dependencies
#5825: Update to latest kube-opeapi to drop govalidator dependency
#5830: downgrade go-difflib and go-spew to tagged releases
#5837: Update kyaml to v0.19.0
#5839: Update cmd/config to v0.19.0
#5840: Update api to v0.19.0

Breaking change
A starlark support for krm functions was removed to cleanup dependencies. #5768
This feature was deprecated 3 years ago and removed because there was no desire to continue using it.
#5768 (comment)
Feature
#5751: Add --helm-debug Flag to Kustomize for Enhanced Helm Debugging
Fix Bugs
#5458: Sort built-in Namespace kind before CRDs with the same name
#5745: Add Annotation to Control Inline List Conversion in Kustomize Resources"
Dependencies
#5763: Update go 1.22.7
#5781: Update kyaml to v0.18.1
#5782: Update cmd/config to v0.15.0
#5783: Update api to v0.18.0