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Update dependency fluxcd/flux2 to v2.9.5 - #331

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renovate/fluxcd-flux2-2.x
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Update dependency fluxcd/flux2 to v2.9.5#331
MathiasPius wants to merge 1 commit into
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renovate/fluxcd-flux2-2.x

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@MathiasPius MathiasPius commented Sep 1, 2026 •
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This PR contains the following updates:

Package Update Change
fluxcd/flux2 minor 2.6.4 -> 2.9.5
fluxcd/flux2 minor v2.6.4 -> v2.9.5

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Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

Release Notes

fluxcd/flux2 (fluxcd/flux2)

v2.9.5

Compare Source

Highlights

Flux v2.9.5 is a patch release that moves helm-controller and source-controller back to upstream Helm, now at v4.2.4, dropping the temporary Flux fork. It hardens the handling of kubeconfig Secrets in helm-controller and kustomize-controller, which now reject kubeconfigs referencing files on the local filesystem and require credentials and certificates to be embedded inline. It also stops kustomize-controller from leaving behind the temporary directories of a previous process that exited without running its cleanup, and fixes a crash in post-build substitution where a substring expression with a negative length, e.g. ${VAR:2:-1}, panicked instead of counting back from the end of the string like Bash does. Across all controllers and the CLI, the fluxcd/pkg dependencies have been updated, bringing Kubernetes to 1.36.4. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Validate kubeconfigs from .spec.kubeConfig Secrets, rejecting local file references in certificate-authority, tokenFile, client-certificate and client-key; credentials and certificates must be embedded inline (helm-controller, kustomize-controller)
  • Purge temporary directories at startup (kustomize-controller)
  • Fix panic on negative-length substring expressions in post-build substitution (kustomize-controller, flux CLI)

Improvements:

  • Move back to upstream Helm v4.2.4, dropping the Flux fork (helm-controller, source-controller)
  • Update fluxcd/pkg dependencies, which bring Kubernetes to 1.36.4 (all controllers, flux CLI)
Components changelog
CLI changelog

Full Changelog: fluxcd/flux2@v2.9.4...v2.9.5

v2.9.4

Compare Source

Highlights

Flux v2.9.4 is a patch release that ships various fixes to the Flux controllers, covering source-watcher tarball extraction and glob expansion limits, the refspecs accepted by ImageUpdateAutomation, the HTTP request limits of the notification-controller servers, and Helm repository index loading, OCI chart digest pinning, Bucket error handling and GCS static authentication in source-controller. On the CLI side, flux migrate -f now supports migrating repositories to Flux 2.9. Users are encouraged to upgrade for the best experience.

Note that this release contains CRD schema changes for ArtifactGenerator and ImageUpdateAutomation; both CRDs must be updated along with the controllers.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Confine tarball extraction and bound glob expansion (source-watcher)
  • Disallow force-update and deletion via refspecs (image-automation-controller)
  • Unify HTTP server request limits (notification-controller)
  • Align Helm repository index loading with upstream Helm v4 (source-controller)
  • Improve error handling in Bucket reconciliation (source-controller)
  • Pin OCI chart verification by digest (source-controller)
  • Limit GCS static authentication to service account keys (source-controller)
  • Restrict the allow-webhooks network policy to the receiver port (flux CLI)

Improvements:

  • Add support for migrating repositories to 2.9 in flux migrate -f (flux CLI)
  • Update fluxcd/pkg dependencies, which align the ECR host detection with upstream (source-controller, image-reflector-controller, flux CLI)
  • Update Bitbucket Cloud receiver guidance (notification-controller)
Components changelog
CLI changelog

Full Changelog: fluxcd/flux2@v2.9.3...v2.9.4

v2.9.3

Compare Source

Highlights

Flux v2.9.3 is a patch release. It fixes empty lines vanishing from rendered Helm chart manifests, HelmReleases being marked as tested when their Helm test hooks never ran, and spec.images entries that set only some image fields discarding the remaining fields already declared for the same image in the kustomization.yaml. The latter affects both kustomize-controller and the flux build|diff kustomization commands. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Fix empty lines vanishing from rendered chart manifests (helm-controller)
  • Fix HasBeenTested for all corner cases, where a release could be marked as tested although its Helm test hooks never ran (helm-controller)
  • Fix a spec.images entry setting only some of the image fields discarding the remaining fields already declared for the same image in the kustomization.yaml at spec.path, e.g. overriding only newName produced an untagged image reference (kustomize-controller, flux CLI)

Improvements:

  • Update fluxcd/pkg dependencies
  • Include source-watcher in the OCI flux-manifests artifact
Components changelog
CLI changelog

Full Changelog: fluxcd/flux2@v2.9.2...v2.9.3

v2.9.2

Compare Source

Highlights

Flux v2.9.2 is a patch release. The main fix addresses a regression introduced in
v2.9.1 where a Kustomization with openapi.path pointing to a URL failed to
reconcile with failed to read OpenAPI schema. This release also corrects several
CRD field descriptions that contained inaccurate or leaked content. Users are
encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Fix a regression where a Kustomization with openapi.path pointing to a URL failed to reconcile with failed to read OpenAPI schema (kustomize-controller)
  • Fix the HelmChart CRD description for .status.url, which pointed users at BucketStatus.Artifact instead of HelmChartStatus.Artifact (source-controller)
  • Fix the ImageRepository CRD description for .status.observedExclusionList, which referred to spec.lastScanResult instead of status.lastScanResult (image-reflector-controller)
  • Fix the ImageUpdateAutomation CRD description for .status.observedSourceRevision, which had a stray Go struct declaration leaking into it (image-automation-controller)

Improvements:

  • Update fluxcd/pkg dependencies
Components changelog
CLI changelog

Full Changelog: fluxcd/flux2@v2.9.1...v2.9.2

v2.9.1

Compare Source

Highlights

Flux v2.9.1 is a patch release. The main fix, applied across all controllers, disables Flux variable substitution on the Flux CRDs by annotating them with kustomize.toolkit.fluxcd.io/substitute: disabled, so that Kustomizations with post-build substitution enabled no longer corrupt the CRD schemas when they contain ${...} sequences. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Disable Flux variable substitution on all Flux CRDs, preventing post-build substitution from corrupting CRD schemas that contain ${...} sequences (all controllers)
  • Update SOPS dependency to fix .ini file decryption (kustomize-controller)
  • Fix a dry-run error where applying a resource with a strategic merge patch could fail with <resource> is invalid (kustomize-controller)
  • Fix a breaking change in the in-memory Kustomization build (Flux CLI)

Improvements:

  • Cache the registry authorization token during Notation verification, so it is fetched once per verification instead of once per request (source-controller)
  • Update fluxcd/pkg dependencies
Components changelog
CLI changelog

Full Changelog: fluxcd/flux2@v2.9.0...v2.9.1

v2.9.0

Compare Source

Highlights

Flux v2.9.0 is a feature release. Users are encouraged to upgrade for the best experience.

For a compressive overview of new features and API changes included in this release, please refer to the Announcing Flux 2.9 GA blog post.

Overview of the new features:

  • Flux CLI Plugin System with the Mirror and Schema plugins (flux plugin)
  • Server-Side Apply field ignore rules for fine-grained drift control (Kustomization)
  • SOPS decryption with the Age post-quantum cipher (Kustomization)
  • Kubernetes Workload Identity authentication for OpenBao and Vault (Kustomization)
  • Helm post-render strategies, including chart hooks support (HelmRelease)
  • Literal mode for Helm values references mirroring helm --set-literal (HelmRelease)
  • Allow empty kind in CEL health check expressions (Kustomization, HelmRelease)
  • Git commit signing and verification with SSH keys (GitRepository, ImageUpdateAutomation)
  • AWS CodeCommit authentication using Workload Identity (GitRepository)
  • Custom Sigstore trusted root for keyless verification in air-gapped environments (OCIRepository)
  • Path pattern directory discovery for monorepos (ArtifactGenerator)
  • Secret-less, OIDC-secured webhook Receivers (Receiver)

❤️ Big thanks to all the Flux contributors that helped us with this release!

Kubernetes compatibility

This release is compatible with the following Kubernetes versions:

Kubernetes version Minimum required
v1.34 >= 1.34.1
v1.35 >= 1.35.0
v1.36 >= 1.36.0

[!NOTE]
Note that the Flux project offers support only for the latest three minor versions of Kubernetes.
Backwards compatibility with older versions of Kubernetes and OpenShift is offered by vendors such as
ControlPlane that provide enterprise support for Flux.

OpenShift compatibility

Flux can be installed on Red Hat OpenShift cluster directly from OperatorHub using Flux Operator. The operator allows the configuration of Flux multi-tenancy lockdown, network policies, persistent storage, sharding, vertical scaling and the synchronization of the cluster state from Git repositories, OCI artifacts, and S3-compatible storage.

Upgrade procedure

⚠️ The Flux APIs image.toolkit.fluxcd.io/v1beta2 and notification.toolkit.fluxcd.io/v1beta2
have reached end-of-life and have been removed from the CRDs.

Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from older versions of Flux to v2.9.

Components changelog
CLI changelog
New Contributors

Full Changelog: fluxcd/flux2@v2.8.0...v2.9.0

v2.8.8

Compare Source

Highlights

Flux v2.8.8 is a patch release that includes CVE fixes via go-git v5.19.1 (source-controller, image-automation-controller), reliability fixes in helm-controller and source-controller, the move of Helm back to upstream v4.2.0, support for GCP sovereign cloud artifact registries, and dependency updates. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Add a configurable HTTP timeout for artifact fetching, preventing fetches that could block indefinitely and stall reconciliations (helm-controller)
  • Fix unbounded memory growth caused by a Kubernetes client transport retry wrapper accumulating on every reconcile (helm-controller)
  • Stop force-applying non-CRD objects placed under a chart's crds/ directory (helm-controller)
  • Fix the Helm test action failing to find releases with names longer than 53 characters (helm-controller)
  • Improve path handling in the source reconcilers (source-controller)
  • Support Helm semver build-metadata encoding in OCIRepository tags (source-controller)

Improvements:

  • Update go-git to v5.19.1 which fixes CVE-2026-45571 and CVE-2026-45570 (source-controller, image-automation-controller)
  • Move Helm back to upstream v4.2.0 (source-controller, helm-controller)
  • Add support for GCP sovereign cloud artifact registries (source-controller, image-reflector-controller)
  • Upgrade Kubernetes to 1.36.1 (source-controller, helm-controller)
  • Update fluxcd/pkg dependencies

Components changelog

CLI changelog

Full Changelog: fluxcd/flux2@v2.8.7...v2.8.8

v2.8.7

Compare Source

Highlights

Flux v2.8.7 is a patch release that includes a bug fix in kustomize-controller, a CVE fix in source-controller and image-automation-controller via go-git v5.19.0, and dependency updates. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Fix management of objects annotated with kustomize.toolkit.fluxcd.io/ssa: IfNotPresent where non-namespaced resources were being deleted and recreated on each reconciliation (kustomize-controller)

Improvements:

  • Update go-git to v5.19.0 which fixes CVE-2026-45022 (source-controller, image-automation-controller)
  • Update fluxcd/pkg dependencies (source-controller, kustomize-controller, image-automation-controller)

Components changelog

CLI changelog

Full Changelog: fluxcd/flux2@v2.8.6...v2.8.7

v2.8.6

Compare Source

Highlights

Flux v2.8.6 is a patch release that includes bug fixes and improvements across helm-controller, image-automation-controller, kustomize-controller, notification-controller, and source-controller. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Fix a post-renderer conflict between overlapping hooks and templates (helm-controller)
  • Ignore force replace when server-side apply is enabled (helm-controller)
  • Fix a regression where generic providers would not forward commit status events (notification-controller)
  • Require the audience field on the GCR Receiver secret for tighter verification — will become mandatory in Flux v2.9 (notification-controller)

Improvements:

  • Introduce the MigrateAPIVersion feature gate for migrating the API version of resources in managed field entries (kustomize-controller)
  • Update go-git to v5.18.0 bringing performance improvements for Git operations (source-controller, image-automation-controller)

Components changelog

CLI changelog

Full Changelog: fluxcd/flux2@v2.8.5...v2.8.6

v2.8.5

Compare Source

Highlights

Flux v2.8.5 is a patch release that includes bug fixes and improvements across kustomize-controller, source-controller, and notification-controller. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Fix a race condition where a cancelled reconciliation could leave stale data in the cache, causing Kustomizations to get stuck (kustomize-controller)
  • Fix Azure Blob prefix option not being passed to the storage client (source-controller)

Improvements:

  • Improve error message for encrypted SSH keys without password (source-controller)
  • Add optional email and audience fields to the GCR Receiver for tighter verification (notification-controller)
  • Add provider manifest example for Azure Event Hub managed identity authentication (notification-controller)
Components changelog
CLI changelog

Full Changelog: fluxcd/flux2@v2.8.4...v2.8.5

v2.8.4

Compare Source

Highlights

Flux v2.8.4 is a patch release that includes fixes for the Flux CLI. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Fix flux build ks and flux diff ks on Windows
  • Fix --source flag validation in create kustomization command
CLI changelog

Full Changelog: fluxcd/flux2@v2.8.3...v2.8.4

v2.8.3

Compare Source

Highlights

Flux v2.8.3 is a patch release that fixes a regression in helm-controller. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Fix templating errors for charts that include --- in the content, e.g. YAML separators, embedded scripts, CAs inside ConfigMaps (helm-controller)
Components changelog
CLI changelog

Full Changelog: fluxcd/flux2@v2.8.2...v2.8.3

v2.8.2

Compare Source

Highlights

Flux v2.8.2 is a patch release that comes with various fixes. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Fix enqueuing new reconciliation requests for events on source Flux objects when they are already reconciling the revision present in the watch event (kustomize-controller, helm-controller)
  • Fix the Go templates bug of YAML separator --- getting concatenated to apiVersion: by updating to Helm 4.1.3 (helm-controller)
  • Fix canceled HelmReleases getting stuck when they don't have a retry strategy configured by introducing a new feature gate DefaultToRetryOnFailure that improves the experience when the CancelHealthCheckOnNewRevision is enabled (helm-controller)
  • Fix the auth scope for Azure Container Registry to use the ACR-specific scope (source-controller, image-reflector-controller)
  • Fix potential Denial of Service (DoS) during TLS handshakes (CVE-2026-27138) by building all controllers with Go 1.26.1
Components changelog
CLI changelog

Full Changelog: fluxcd/flux2@v2.8.1...v2.8.2

v2.8.1

Compare Source

Highlights

Flux v2.8.1 is a patch release that comes with various fixes. Users are encouraged to upgrade for the best experience.

ℹ️ Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from Flux v2.6 to the latest version.

Fixes:

  • Fix Git commit status events being dropped for Kustomizations (notification-controller)
  • Fix health check for StatefulSets when the Pods are Pending/Unschedulable during rollout (helm-controller, kustomize-controller)
Components changelog
CLI changelog

Full Changelog: fluxcd/flux2@v2.8.0...v2.8.1

v2.8.0

Compare Source

Highlights

Flux v2.8.0 is a feature release. Users are encouraged to upgrade for the best experience.

For a compressive overview of new features and API changes included in this release, please refer to the Announcing Flux 2.8 GA blog post.

Overview of the new features:

  • Helm v4 support, including server-side apply and kstatus-based health checking (HelmRelease)
  • Readiness evaluation of Helm-managed objects with CEL expressions (HelmRelease)
  • Improved observability of Helm releases with inventory tracking in .status.inventory (HelmRelease)
  • Reduced the mean time to recovery of Flux-managed applications via CancelHealthCheckOnNewRevision feature gate (Kustomization, HelmRelease)
  • Support for commenting on Pull Requests directly from Flux notifications (Provider)
  • Custom SSA apply stages for ordering resource application in kustomize-controller (Kustomization)
  • Automatic GitHub App installation ID lookup from the repository owner (GitRepository, ImageUpdateAutomation, Provider)
  • Support for Cosign v3 for verifying OCI artifacts and container images (OCIRepository)
  • ArtifactGenerator support for extracting and modifying Helm charts (ArtifactGenerator)
  • Bypass cache when fetching source objects via DirectSourceFetch feature gate (Kustomization, HelmRelease, ArtifactGenerator)

❤️ Big thanks to all the Flux contributors that helped us with this release!

Kubernetes compatibility

This release is compatible with the following Kubernetes versions:

Kubernetes version Minimum required
v1.33 >= 1.32.0
v1.34 >= 1.34.1
v1.35 >= 1.35.0

[!NOTE]
Note that the Flux project offers support only for the latest three minor versions of Kubernetes.
Backwards compatibility with older versions of Kubernetes and OpenShift is offered by vendors such as
ControlPlane that provide enterprise support for Flux.

OpenShift compatibility

Flux can be installed on Red Hat OpenShift cluster directly from OperatorHub using Flux Operator. The operator allows the configuration of Flux multi-tenancy lockdown, network policies, persistent storage, sharding, vertical scaling and the synchronization of the cluster state from Git repositories, OCI artifacts, and S3-compatible storage.

Upgrade procedure

⚠️ The Flux APIs v1beta2 and v2beta2 (deprecated in 2024) have reached end-of-life and have been removed from the CRDs.

Please follow the Upgrade Procedure for Flux v2.7+ for a smooth upgrade from older versions of Flux to v2.8.

Components changelog
CLI changelog

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

  • If you want to rebase/retry this PR, check this box

This PR has been generated by Renovate Bot.

@MathiasPius
MathiasPius force-pushed the renovate/fluxcd-flux2-2.x branch from 46d2114 to a148fc9 Compare September 3, 2026 07:46
@MathiasPius
MathiasPius force-pushed the renovate/fluxcd-flux2-2.x branch from a148fc9 to 4e63e46 Compare September 3, 2026 07:51
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