https://cybertoolchain.io/tools/kustomize New releases and features in kustomize, tracked by The Cyber Toolchain. en Wed, 30 Sep 2026 13:09:38 GMT https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.8.2 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.8.2 Wed, 30 Sep 2026 13:09:38 GMT kustomize v5.8.2 adds `kustomize edit add configuration` and `kustomize edit remove component` commands.⁠︀︄︇︀︅︉︀︅︀︀︃︀︀︅︅︀︅︊︀︄︆︀︃︄⁠ • Adds `kustomize edit remove component` command to remove a component reference from a kustomization file via the CLI.⁠︀︄︇︀︅︉︀︅︀︀︃︀︀︅︅︀︅︊︀︄︆︀︃︄⁠ • Loads the built-in OpenAPI schema from a pre-compiled bundle embedded in the binary, replacing runtime loading from the Kubernetes API definition. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.21.2 https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.21.2 Wed, 30 Sep 2026 12:36:58 GMT kustomize api/v0.21.2 adds label propagation to StatefulSet volumeClaimTemplates, structured-data delimiter handling, and ambiguous path rejection.⁠︀︄︇︀︅︉︀︅︀︀︃︀︀︅︅︀︅︊︀︄︆︀︃︄⁠ • Adds `includeVolumeClaimTemplates` support to propagate labels into `volumeClaimTemplates` in StatefulSets.⁠︀︄︇︀︅︉︀︅︀︀︃︀︀︅︅︀︅︊︀︄︆︀︃︄⁠ • Accounts for delimiters in structured data replacements, improving correctness of replacement operations on YAML/JSON values. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.21.2 https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.21.2 Wed, 30 Sep 2026 11:56:06 GMT Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.8.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.8.0 Sun, 09 Nov 2025 15:00:06 GMT kustomize v5.8.0 adds structured-data replacements, regex replacement selectors, and a new PatchArgs API type. • Supports editing embedded YAML/JSON values inside manifests via the replacements transformer using dot-path traversal into structured fields (e.g. `data.config\.json.config.hostname`). • Adds regex support for Replacement selectors, enabling pattern-based source/target matching in replacements. • Introduces `PatchArgs` API type to programmatically populate patch options. Breaking changes: • A regression in namespace propagation to child kustomizations was introduced in this release; the maintainers advise against upgrading until a patch release is available. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.21.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.21.0 Sun, 09 Nov 2025 14:29:11 GMT kustomize api v0.21.0 adds regex replacement selectors, structured-data replacement values, and a new PatchArgs API type. • Supports regex patterns in Replacement selectors for flexible field targeting. • Implements replacement values in structured data for richer substitution workflows. • Adds `PatchArgs` API type to programmatically populate patch options. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.7.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.7.0 Sat, 28 Jun 2025 07:09:54 GMT kustomize v5.7.0 adds static replacement values, Image Volume support, and Helm `devel` alias for chart references. • Adds static value source for replacements, allowing a literal string to be used directly as a replacement source without referencing a resource field. • Adds `images` support for Image Volumes in the images transformer. • Supports the `devel` alias in `helmcharts` configuration, enabling use of pre-release Helm chart versions. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.20.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.20.0 Sat, 28 Jun 2025 06:45:45 GMT kustomize api v0.20.0 adds static value sources for replacements, Image Volume support, and Helm `devel` alias for chart references. • Adds static value source for the replacements transformer, enabling literal values as replacement sources without requiring a field reference. • Supports Image Volumes in kustomize configurations (#5921). • Allows use of the `devel` alias when referencing Helm charts, enabling pre-release chart versions in `helmcharts` configurations. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.5.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.5.0 Wed, 09 Oct 2024 13:17:14 GMT kustomize v5.5.0 adds --helm-debug flag for enhanced Helm chart debugging • Adds `--helm-debug` flag to pass Helm's debug mode through kustomize builds, surfacing verbose Helm output for troubleshooting chart rendering. Breaking changes: • Starlark support for KRM functions has been removed; any pipeline using Starlark-based KRM functions will break on upgrade. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.18.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.18.0 Wed, 09 Oct 2024 12:58:00 GMT kustomize api/v0.18.0 adds --helm-debug flag and drops Starlark support • Adds `--helm-debug` flag to pass Helm's debug mode through kustomize for enhanced Helm troubleshooting. Breaking changes: • Starlark support has been removed; any kustomization using Starlark transformers/generators will break on upgrade. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.18.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.18.0 Wed, 09 Oct 2024 12:10:20 GMT kyaml v0.18.0 adds Helm debug flag, inline list conversion control, and smarter Namespace sorting. • Adds `--helm-debug` flag to expose enhanced Helm debugging output during kustomize builds. • Adds annotation to control inline list conversion behavior in Kustomize resources. • Sorts built-in Namespace kind before CRDs with the same name for more predictable apply ordering. Breaking changes: • Starlark support for KRM functions has been removed; any pipeline relying on starlark-based krm functions will break on upgrade. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.4.3 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.4.3 Fri, 19 Jul 2024 16:52:40 GMT kustomize localize now validates builds by default, with --no-verify flag to skip • Adds automatic `kustomize build` verification to `kustomize localize` (beta), catching missing or undownloadable manifests before localization completes. • Adds `--no-verify` flag to `kustomize localize` to skip build validation when working with intentionally incomplete manifests. Breaking changes: • `kustomize localize` now runs `kustomize build` as part of execution; setups that rely on localizing incomplete or missing manifests will fail unless `--no-verify` is passed. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.4.2 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.4.2 Wed, 22 May 2024 15:28:37 GMT kustomize 5.4.2 adds `localize` for absolute paths and supports a `labels` key in transformer configs • Adds `localize` feature to transform absolute resource file paths into relative ones • Adds support for the `labels` key inside transformer configuration blocks Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.17.2 https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.17.2 Wed, 22 May 2024 15:00:47 GMT kustomize adds `labels` transformer support and absolute path localization • Adds `labels` key support in transformer configuration to merge labels into resources • Localizes absolute paths within transformer configurations Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.4.1 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.4.1 Thu, 04 Apr 2024 17:18:31 GMT kustomize/v5.4.0 adds `edit set secret` command and Go 1.21 build requirement • `--load-restrictor` completion is now available for shell integration. • The `edit set secret` command allows setting Kubernetes secrets directly from the CLI. • kustomize now requires Go 1.21 or higher to build. Breaking changes: • Null YAML values are no longer replaced by the string "null". Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.4.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.4.0 Thu, 04 Apr 2024 14:32:00 GMT Adds --load-restrictor completion and `edit set secret` command to kustomize v5.4.0 • Adds completion support for the `--load-restrictor` flag on `kustomize build`/`edit` commands, allowing shell auto-completion of load restrictor values. • Adds the `edit set secret` subcommand, enabling users to create or update secrets directly via CLI. Breaking changes: • Fixes null YAML values being replaced by the string 'null' (PR #5519) Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.3.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.3.0 Thu, 07 Dec 2023 10:53:09 GMT kustomize 5.3.0 adds `helm` support for `--kube-version`/`--api-versions`, new `edit set` commands, and empty namespace handling • Adds `--kube-version` and `--api-versions` CLI arguments to the `helm` command to control Kubernetes version targeting • Introduces `kustomize edit set configmap` subcommand for programmatic ConfigMap management • Allows empty string for namespace flag on `edit remove secret/configmap`, treating it as default Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.16.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.16.0 Thu, 07 Dec 2023 10:29:32 GMT Adds kube-version and api-versions CLI args for Helm builds • Adds `--kube-version` and `--api-versions` CLI arguments to control Helm chart generation targets Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.2.1 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.2.1 Thu, 19 Oct 2023 20:22:10 GMT kustomize v5.2.1 adds multi-patch support, OCI Helm repos, and new `edit` commands. • Add support for OCI based helm repos • Add `edit add labels` command with option for labels without selector • Add `edit remove configmap` subcommand • Add `--no-verify` flag to `edit add resource` command • Add `edit remove secret` subcommand Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.2.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.2.0 Thu, 19 Oct 2023 18:18:14 GMT kustomize v5.2.0 adds multi-patch files, OCI Helm repo support and several kustomize edit subcommands • Adds `kustomize edit add labels` command with option to apply labels without a selector (#4486) • Adds `kustomize edit remove configmap` command to delete ConfigMap references from kustomization.yaml (#5327) • Adds `--no-verify` flag to `kustomize edit add resource` to skip existence checks (#5333) • Adds `kustomize edit remove secret` command to delete Secret references from kustomization.yaml (#5344) • Adds `--namespace` option to `kustomize edit add configmap` command (#5367) Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.15.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.15.0 Thu, 19 Oct 2023 17:35:47 GMT kustomize adds OCI-based Helm repo support and fixes `edit add configmap` namespace flag • Adds support for OCI based helm repos Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.15.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.15.0 Thu, 19 Oct 2023 16:05:02 GMT kyaml/v0.15.0 adds OCI-based Helm repository support for Kustomize builds • `kustomize` now supports pulling Helm charts from OCI registries • Performance optimization limiting `initSchema` calls in `openapi.IsNamespaceScoped` Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.1.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.1.0 Mon, 19 Jun 2023 17:03:14 GMT Components are now applied after generators in kustomize v5.1.0 • Changes the application order of `components` to run **after** generators (previously components were applied before) • Updates the Go toolchain requirement to Go 1.20 Breaking changes: • The application order for `components` is now **after** generators, which changes the final manifest output for kustomizations using components and resource generators Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.0.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.0.0 Thu, 02 Feb 2023 17:19:31 GMT kustomize v5.0.0 adds `kustomize localize` alpha command, `sortOptions`, Helm chart fields, and `--output` flag for version output • Adds the new `kustomize localize` alpha subcommand to download remote content and create a localized build without network access • Adds the `sortOptions` kustomization field for fine-grained control over resource ordering in build output • Adds support for four new Helm fields: `additionalValuesFiles`, `skipTests`, `apiVersions`, and `nameTemplate` in `helmCharts` configurations • Adds `--output` flag to `kustomize version` to enable YAML or JSON formatted output Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.13.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.13.0 Wed, 01 Feb 2023 23:36:23 GMT Kustomize v0.13.0 adds sortOptions, localize command, SSH cert support, and Helm template args • Adds `sortOptions` field to Kustomization files to configure resource sort order • Introduces `kustomize localize` subcommand for localizing remote resources • Adds `--output` flag to `kustomize version` to output YAML or JSON • Supports SSH URLs with certificates in RepoSpec • Adds wildcard support for creation in ReplacementTransformer • Adds `additionalValuesFiles`, `skipTests`, and `apiVersions` fields to `helmCharts` Breaking changes: • Dropped support for using `gh:` as a host in URLs • `patches` is no longer an alias for `patchesStrategicMerge`; use `patchesStrategicMerge` or new `patches` syntax explicitly • Removed long-ignored Inventory field from Kustomization type • ConfigMapGenerator and SecretGenerator no longer load values from local environment at build time • Duplicate fields in Kustomization files now result in an error instead of being silently ignored • Removal of DoLegacyResourceSort function Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.14.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.14.0 Wed, 01 Feb 2023 21:37:14 GMT kyaml/v0.14.0 adds PathMatcher creation support and allows fieldspecs to start with a slash • Adds `creation` support to the `PathMatcher` filter via #4886 • Allows `fieldspecs` in advanced transformer configuration to start with a slash via #4947 Breaking changes: • copyutils.CopyDir() now requires a FileSystem argument • Removes Resid.LegacySortString() method Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v4.5.6 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v4.5.6 Fri, 29 Jul 2022 20:50:14 GMT Adds --setRole and --overwrite flags to NamespaceTransformer for granular control. • `kustomize edit add transformers` now supports `--setRole` to customize the NamespaceTransformer role binding subject handling • `kustomize edit add transformers` now supports `--overwrite` to customize the NamespaceTransformer overwrite behaviour Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.13.8 https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.13.8 Fri, 29 Jul 2022 19:41:21 GMT kyaml/v0.13.8 adds filesys.ConfirmDir and supports colons in in-memory FS paths • `filesys.ConfirmDir` function ensures a path is a directory and cleans it • In-memory filesystem abstraction now allows colons in filenames Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v4.5.5 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v4.5.5 Fri, 20 May 2022 20:34:44 GMT Adds `tagsuffix` transformer, remote OpenAPI schema support, and labels for templated metadata. • `includeTemplates: true` now causes template metadata (labels) to be propagated to the resulting objects • New `tagsuffix` transformer available in Kustomizations to append a suffix to container image tags • Support for loading remote OpenAPI schemas for validation Breaking changes: • External generators and transformers now raise an error instead of being silently ignored Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.11.5 https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.11.5 Fri, 20 May 2022 19:21:17 GMT kustomize api/v0.11.5 adds `tagsuffix` transformer support and remote OpenAPI schema validation. • Adds the `tagsuffix` field to image transformers, allowing practitioners to append a suffix to image tags during patching. • Introduces support for loading remote OpenAPI schemas in generators and transformers for schema validation. • Raises an error when external generators or transformers are detected, preventing silent failures from unsupported plugin types. Breaking changes: • External generators or transformers now raise an error instead of being processed silently. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.13.7 https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.13.7 Fri, 20 May 2022 18:43:02 GMT kyaml/v0.13.7 improves OpenAPI parsing performance and fixes field/dot handling in kustomize functions • Openapi parsing performance improvement with protobuffer Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v4.5.3 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v4.5.3 Thu, 24 Mar 2022 21:02:46 GMT kustomize v4.5.3 adds anchor tag expansion, multiple replacements per file, and full array element targeting in replacements. • Support expanding anchor tags • Allow setting every array element in replacements • Support for multiple replacements in a single file Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.11.3 https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.11.3 Thu, 24 Mar 2022 20:33:49 GMT kustomize v0.11.3 adds multiple replacements per file and preserves scalar types in replacement filters. • Supports multiple replacements in a single file • Preserves scalar types when using the replacement filter Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.13.4 https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.13.4 Thu, 24 Mar 2022 19:58:11 GMT kustomize v0.13.4 adds openAPI validation for functionConfig and anchor tag expansion • `fn` framework now validates `functionConfig` against an openAPI schema • Supports expanding YAML anchor tags in kustomizations • Allows setting every array element in replacements Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v4.5.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v4.5.0 Wed, 02 Feb 2022 00:30:54 GMT Adds `buildMetadata` kustomization field and new `kustomize edit` subcommands for generator and metadata management • `kustomize build ...` completes file paths on ZSH via built-in shell completion. • `PrefixSuffixTransformer` is split into distinct `PrefixTransformer` and `SuffixTransformer` types usable individually in the `transformers` field. • Adds new `buildMetadata` field to the kustomization resource schema. • Adds `new command 'kustomize edit add generator'` for generator configuration. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.11.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/api/v0.11.0 Wed, 02 Feb 2022 00:07:37 GMT New `kustomize edit add buildmetadata` command and `buildMetadata` kustomization field • Adds the `kustomize edit add buildmetadata` subcommand to inject build metadata into kustomizations • Introduces the `buildMetadata` field in kustomization files to store build-time information • Refactors PrefixSuffixTransformer into separate `PrefixTransformer` and `SuffixTransformer`, usable individually in `transformers` Breaking changes: • The `enable-managedby-label` flag is deprecated; users must migrate to the new field-based approach. Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.13.1 https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.13.1 Thu, 23 Dec 2021 18:30:32 GMT kyaml v0.13.1 adds fn Results.Sort() and preserves annotation formatting in Filter errors. • Results.Sort() method allows sorting function results by GVK and name Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.13.0 https://github.com/kubernetes-sigs/kustomize/releases/tag/kyaml/v0.13.0 Thu, 11 Nov 2021 22:11:28 GMT kyaml/v0.13.0 adds label/annotation selection in replacement targets and updates ResourceList to v1 • Supports `label` and `annotation` selection in replacement targets within kustomize configurations • Bumps `ResourceList` from v1alpha1 to v1, updating the results field to implement function spec v1 Full history on Cyber Toolchain: https://cybertoolchain.io/tools/kustomize