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The CHANGELOG.md in the kubernetes/client-go repo hasn't been updated for seven years. In the future, a CHANGELOG.md for client-go is meant to be maintained together with the commits in k/k which change client-go (https://github.com/kubernetes/kubernetes/pull/138351).
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This file documents Go API changes in client-go.
Go API changes are typically not included in the Kubernetes release notes, so noteworthy Go API changes may be documented here. This is currently not required, so consult the git history to see all changes.
restmapper + discovery: add context-aware APIs
See PR #129109.
- ./kubernetes.(*Clientset).Discovery: changed from func() k8s.io/client-go/discovery.DiscoveryInterface to func() k8s.io/client-go/discovery.DiscoveryInterfaces
- ./kubernetes.Interface.Discovery: changed from func() k8s.io/client-go/discovery.DiscoveryInterface to func() k8s.io/client-go/discovery.DiscoveryInterfaces
- ./kubernetes/fake.(*Clientset).Discovery: changed from func() k8s.io/client-go/discovery.DiscoveryInterface to func() k8s.io/client-go/discovery.DiscoveryInterfaces
Remove v2beta1 aggregated discovery support from clients
See PR #138271.
- ./discovery.AcceptV2Beta1: removed
- ./discovery.SplitGroupsAndResourcesV2Beta1: removed
Add GC to client-go TLS cache
See PR #136355.
- ./transport.DialerStopCh: removed
Add metric tracking the latest cached rv of informers
See PR #137419.
- ./tools/cache.FIFOMetricsProvider: removed
- ./tools/cache.InformerMetricsProvider.NewStoreResourceVersionMetric: added
- ./tools/cache.InformerOptions.FIFOMetricsProvider: removed
- ./tools/cache.NewIndexer: changed from func(KeyFunc, Indexers) Indexer to func(KeyFunc, Indexers, ...StoreOption) Indexer
- ./tools/cache.NewThreadSafeStore: changed from func(Indexers, Indices) ThreadSafeStore to func(Indexers, Indices, ...ThreadSafeStoreOption) ThreadSafeStore
- ./tools/cache.SetFIFOMetricsProvider: removed
- ./tools/cache.SharedIndexInformerOptions.FIFOMetricsProvider: removed
Rename name to command in kuberc credentialPluginAllowlist entries
See PR #137272.
- ./tools/clientcmd/api.AllowlistEntry.Name: removed
Add Resource Version query and Bookmarks to thread safe store
See PR #134827.
- ./tools/cache.Store.Bookmark: added
- ./tools/cache.Store.LastStoreSyncResourceVersion: added
- ./tools/cache.ThreadSafeStore.Bookmark: added
- ./tools/cache.ThreadSafeStore.DeleteWithObject: added
- ./tools/cache.ThreadSafeStore.LastStoreSyncResourceVersion: added
apimachinery + client-go + device taint eviction unit test: context-aware Start/WaitFor, waiting through channels
See PR #135395.
- ./informers.SharedInformerFactory.StartWithContext: added
- ./informers.SharedInformerFactory.WaitForCacheSyncWithContext: added
- ./tools/cache.Controller.HasSyncedChecker: added
- ./tools/cache.Queue.HasSyncedChecker: added
- ./tools/cache.ResourceEventHandlerRegistration.HasSyncedChecker: added
- ./tools/cache.SharedInformer.HasSyncedChecker: added
- ./tools/cache/synctrack.AsyncTracker.UpstreamHasSynced: removed
- ./tools/cache/synctrack.SingleFileTracker.UpstreamHasSynced: removed
Add identifier-based queue depth metrics for RealFIFO
See PR #135782.
- ./informers/internalinterfaces.SharedInformerFactory.InformerName: added
- ./informers/internalinterfaces.SharedInformerFactory.InformerName: added
Ensure that processing does not block queue writers in RealFIFO
See PR #136264.
- ./tools/cache.Pop: removed
Add atomic replace in client-go
See PR #135462.
- ./tools/cache.(*RealFIFO).PopBatch: changed from func(ProcessBatchFunc) error to func(ProcessBatchFunc, PopProcessFunc) error
- ./tools/cache.QueueWithBatch.PopBatch: changed from func(ProcessBatchFunc) error to func(ProcessBatchFunc, PopProcessFunc) error
Embed proper interface in TransformingStore to ensure DeltaFIFO and RealFIFO are implementing it
See PR #135580.
- ./tools/cache.Store.Get, method set of TransformingStore: removed
- ./tools/cache.Store.GetByKey, method set of TransformingStore: removed
- ./tools/cache.Store.List, method set of TransformingStore: removed
- ./tools/cache.Store.ListKeys, method set of TransformingStore: removed
- ./tools/cache.TransformingStore: no longer implements ./tools/cache.KeyLister
- ./util/consistencydetector.CheckDataConsistency: changed from func(context.Context, string, string, ListFunc[T], k8s.io/apimachinery/pkg/apis/meta/v1.ListOptions, RetrieveItemsFunc[U]) to func(context.Context, string, string, ListFunc[T], TransformFunc, k8s.io/apimachinery/pkg/apis/meta/v1.ListOptions, RetrieveItemsFunc[U])
Replace deprecated sets.String with sets.Set in client-go/tools/*
See PR #133923.
- ./tools/cache.FakeExpirationPolicy.NeverExpire: changed from k8s.io/apimachinery/pkg/util/sets.String to k8s.io/apimachinery/pkg/util/sets.Set[string]
- ./tools/cache.Index: removed
Changes for Kubernetes <= 1.34
For older changes refer to the commit messages and PR descriptions.