AI-analyzed release notes for CNCF graduated and incubating projects.
A substantial operator-facing release with new capabilities, behavior changes, a compatibility constraint, and a deprecation. It is the first annual LTS release under a Kubernetes-aligned cadence, with support planned for at least two years.
Action needed (1)
breakingPlugin names disallow commas
OCI hook adjustments accumulate owners, and commas are disallowed in plugin names in this release.
Plan ahead (1)
deprecatedThe shim. API, deprecated
Applies if you use shim..
A broad feature and maintenance release adds routing, streaming, tracing, backup and restore, observability, and tablet-management capabilities alongside correctness, performance, and dependency updates. Operators should review changed defaults, backup behavior, removed endpoints and metrics, deprecated features, and security fixes affecting external decompression.
Action needed (3)
securityClear-text logging of sensitive information
The release addresses a code scanning alert about clear-text logging of sensitive information.
securityDirectory traversal protection in GetBackups
The file backup storage GetBackups RPC no longer permits directory traversal paths.
breakingStricter VTGate SELECT list validation
VTGate rejects an unqualified * after a comma in a SELECT list.
Check if affected (12)
securityOpt-in compressor commands from MANIFEST
Applicability is not stated in the release notes.
securityExternal decompressor commands from backup MANIFEST
Applies if you use backup storage.
securityBackup MANIFEST path traversal protection
Applies if backupengine runs.
Plan ahead (4)
deprecatedThe glog deprecationremoval planned in v25
Applies if you use glog.
deprecatedThe OpenTracing backend deprecationsremoval planned in v25
Applies if you use opentracing-jaeger or opentracing-datadog.
deprecatedVTOrc Snapshot Topology deprecationremoval planned in v25
Applies if you configure --snapshot-topology-interval.
A release with API and configuration contract changes, new capabilities, deprecations, and bug fixes. It includes transport, telemetry, generated configuration, and data-handling updates, with no disclosed security advisories or security-specific fixes.
Check if affected (2)
breakingRelative replace paths in generated Collector source
Applies if you use the generated Collector source.
breakingNamed Config. field
Applies if you use Config..
Plan ahead (1)
deprecatedDefaultMetricsBuilderConfig deprecation
Applies if you use DefaultMetricsBuilderConfig.
A feature and maintenance release that adds Store Gateway, federation, overrides, caching, metric, and query capabilities while graduating several experimental features. It also changes defaults and configuration names, updates dependencies, and fixes correctness, memory, panic, and data-corruption defects.
Action needed (1)
breakingThe blocks storage bucket index default
Blocks storage now enables the bucket index by default through -blocks-storage.. Disabling it with -blocks-storage. is not recommended for production.
Check if affected (1)
breakingThe Distributor type and unit label flag
Applies if you configure either -distributor. or -distributor. for remote write v2 and OTLP requests.
Plan ahead (3)
breakingThe Ruler API flag rename
Applies if you configure -experimental..
breakingThe Alertmanager API flag rename
Applies if you configure -experimental..
breakingThe Users Scanner user index update configuration
Applies if you configure either -*. or clean_up_interval.
A release with breaking configuration and flag changes, many new extension and protocol capabilities, and fixes for security, correctness, and observability. The recorded additions include module and filter extension APIs, MCP and A2A protocol support, OpenSSL builds, new formatters and metrics, and expanded streaming and TLS capabilities.
Action needed (1)
securityhighnghttp2 **CVE-2026-27135** patch
The nghttp2 **CVE-2026-27135** patch is included.
Check if affected (6)
securityURL encoding for query_parameter_mutations values
Applies if you configure query_parameter_mutations.
securityRBAC concatenation-based bypass prevention
Applies if RBAC runs.
breakingExplicit max_early_data_bytes configuration
Applies if you configure upstream_connect_mode with a value other than IMMEDIATE and do not configure max_early_data_bytes.
Plan ahead (1)
deprecatedThe enforce_rsa_key_usage option, deprecatedremoval date not announced
Applies if you configure enforce_rsa_key_usage.
A broad operator-significant release with API, configuration, CLI default, scheduling, runtime, feature-gate, metric, and dependency changes. Upgrade review and testing matter for users of removed or deprecated interfaces, changed defaults, custom scheduler integrations, CRDs, audit logging, and affected metrics.
Action needed (11)
breakingStrictIPCIDRValidation enabled by default
The StrictIPCIDRValidation feature gate in kube-apiserver is enabled by default.
breakingThe default debug profile, changed to general
The default debug profile changes from legacy to general.
breakingWatchCacheInitializationPostStartHook enabled by default
The WatchCacheInitializationPostStartHook feature gate is enabled by default.
breakingKubeletPSI graduation to GA
The KubeletPSI feature graduated to GA and is enabled by default.
breakingRelaxedServiceNameValidation at beta, enabled by default
The RelaxedServiceNameValidation feature gate graduated to beta and is enabled by default.
breakingRestartAllContainersOnContainerExits at beta, enabled by default
The RestartAllContainersOnContainerExits feature gate graduated to beta and is enabled by default.
breakingSuspended-job feature gates enabled by default
The MutablePodResourcesForSuspendedJobs and MutableSchedulingDirectivesForSuspendedJobs feature gates are enabled by default.
breakingAtomicFIFO informer store updates
Default informer behavior now updates store state with all objects in a list or relist before invoking individual-item handler methods. This behavior is associated with AtomicFIFO.
breakingUnlockWhileProcessing informer behavior
Informers can now enqueue new watch events while already-queued events are being processed. This behavior is associated with UnlockWhileProcessing.
breakingClientsAllowCARotation functionality enabled by default
This functionality is enabled by default and can be disabled through the ClientsAllowCARotation feature gate.
breakingClientsAllowTLSCacheGC functionality enabled by default
This functionality is enabled by default and can be controlled through the ClientsAllowTLSCacheGC feature gate.
Check if affected (25)
breakingThe volume_operation_total_errors metric, renamed
Applies if you use volume_operation_total_errors.
breakingThe git-repo volume plugin, disabled
Applies if you use the git-repo volume plugin.
breakingAllowlistEntry., renamed to AllowlistEntry.
Applies if you configure AllowlistEntry..
Plan ahead (6)
deprecatedService . deprecation
Applies if you configure Service ..
deprecatedDirect access to metav1., deprecated
Applies if you use metav1..
deprecatedMinNodeScore and MaxNodeScore, deprecated
Applies if you use MinNodeScore or MaxNodeScore.
A substantial feature and maintenance release with API, UI, plugin, authentication-token, catalog, scaffolder, frontend, and SCM changes. It also updates vulnerable glob and rollup dependencies, fixes the . URL, and includes broad correctness and dependency updates.
Action needed (4)
securityhighThe glob and rollup dependencies, upgraded
The glob dependency was upgraded from v7, v8, and v11 to v13 to address security vulnerabilities in older versions. rollup was upgraded from v4.27 to v4.59+ to fix the path traversal vulnerability identified by GHSA-mw96-cpmx-2vgc.
securityThe glob dependency, upgraded to v13
The glob dependency was upgraded from v7, v8, and v11 to v13 to address security vulnerabilities in older versions.
securityThe rollup dependency, upgraded to v4.59+
rollup was upgraded from v4.27 to v4.59+ to fix the path traversal vulnerability identified by GHSA-mw96-cpmx-2vgc.
securityThe . URL
The . resource URL was fixed to comply with RFC 9728 Section 7.3. Dynamic resource paths are enabled.
Check if affected (22)
breakingThe auth. setting
Applies if you do not configure auth..
breakingThe SignInResolverFactoryOptions type parameters
Applies if you use SignInResolverFactoryOptions.
breakingThe catalog permission exports, removed
Applies if you use CatalogPermissionRuleInput, CatalogPermissionExtensionPoint, or catalogPermissionExtensionPoint.
Plan ahead (6)
deprecatedThe show and showModal compatibility implementation, deprecated
Applies if you use show or showModal.
deprecatedThe auth. setting, deprecatedremoval date not announced
Applies if you configure auth..
deprecatedThe config. callback format, deprecated
Applies if you use config..
This release adds Kubernetes-native service routing and related CRD fields, changes Helm behavior, fixes a NATS subscriber initialization race, and retires the runtime-gateway path. Operators using the deprecated gateway configuration need to account for the routing change and removed chart behavior.
Action needed (1)
breakingThe default chart tag is removed
The default tag is removed, so the chart uses chart.'s appVersion.
Check if affected (1)
breakingNative Kubernetes Service routing replaces runtime-gateway
Applies if you use runtime-gateway.
Plan ahead (1)
deprecatedThe Helm gateway section is deprecated
Applies if you configure gateway.
A substantial operator-facing feature and maintenance release adds new capabilities, configuration and deployment options, performance improvements, and many bug fixes. It also changes selected defaults, deprecates Token Exchange v1, and includes security and correctness fixes for authorization, identity and URL handling, SCIM, anti-phishing checks, and UMA token validation.
Action needed (6)
securitySeparate password and OTP brute force protection
Password and OTP brute force protection are now separate by default to prevent OTP bypass attacks.
securityResourceAdminManager URL construction validation
URL construction in ResourceAdminManager is validated against matrix parameter injection.
securityClient retrieval anti-ID phishing check
Client retrieval now includes the missing anti-ID phishing check.
breakingZero-downtime patch releases enabled by default
Zero-downtime patch releases are now promoted to supported and enabled by default.
breaking--truststore-kubernetes-enabled enabled by default
The behavior controlled by --truststore-kubernetes-enabled is enabled by default.
breakingTen-second default not-before validation
The default not-before validation period is now 10 seconds instead of 0.
Check if affected (7)
securityWorkflows admin permission boundaries
Applies if you use Workflows.
securityOrganizations login IdP alias disclosure
Applies if you use Organizations.
securitySCIM PUT body ID override protection
Applies if you use SCIM.
Plan ahead (1)
deprecatedToken Exchange v1 deprecation
Applies if you use Token Exchange v1.
This release adds an operator-facing histogram metric and ListObjects performance improvements, fixes PostgreSQL and ListObjects defects, and addresses improper BatchCheck policy enforcement. Playground users face a breaking authentication constraint, while the built-in Playground and its port settings are deprecated.
Action needed (1)
securitymediumBatchCheck policy enforcement fix for CVE-2026-34972
The issue was fixed where BatchCheck calls with multiple checks for the same tuple could result in improper policy enforcement. The fix addresses CVE-2026-34972 and GHSA-jwvj-g8pc-cx45.
Check if affected (1)
breakingPlayground authentication limited to none
Applies if the Playground runs with preshared key authentication.
Plan ahead (2)
deprecatedBuilt-in OpenFGA Playground deprecationremoval date not announced
Applies if you use the built-in OpenFGA Playground.
deprecated--playground-port and OPENFGA_PLAYGROUND_PORT deprecation
Applies if you configure --playground-port or OPENFGA_PLAYGROUND_PORT.
A broad release with new service discovery, PromQL, TSDB, and UI capabilities, alongside performance, dependency, output, and correctness changes. It also deprecates legacy Hetzner discovery labels and corrects TSDB retention-time handling.
Check if affected (1)
breakingThe storage. unit handling
Applies if you configure storage..
Plan ahead (2)
deprecatedThe __meta_hetzner_datacenter label, deprecatedremoval date not announced
Applies if you use __meta_hetzner_datacenter.
deprecatedThe Hetzner Cloud datacenter location labels, deprecated
Applies if you use __meta_hetzner_hcloud_datacenter_location or __meta_hetzner_hcloud_datacenter_location_network_zone.
