feat(github-release): update release kubernetes-sigs/external-dns ( v0.20.0 ➔ v0.21.0 )

[mortyops]

This PR contains the following updates:

Package	Update	Change
kubernetes-sigs/external-dns	minor	v0.20.0 → v0.21.0

---

Release Notes

kubernetes-sigs/external-dns (kubernetes-sigs/external-dns)

v0.21.0

Compare Source

⚠️ Breaking Changes

• chore(digitalocean)!: remove in-tree provider by @​simonoff in #​6283
• chore(source)!: remove cloudfoundry support by @​ivankatliarchuk in #​6074
• feat!: generalize PTR record support from rfc2136 to all providers by @​clwluvw in #​6232
• feat(pihole)!: deprecate v5 API support by @​ivankatliarchuk in #​6123
• feat(service)!: ignore unschedulable nodes by @​ivankatliarchuk in #​6002
• feat(source/gateway-api)!: migrate Gateway and HTTPRoute to v1 by @​System-Arch in #​6291
• feat(source/istio)!: migrate gateway and virtualservice sources to networking.istio.io/v1 by @​ivankatliarchuk in #​6302

🚀 Features

• feat(aws): enable support for NAPTR records by @​alexbakker-quandago in #​6022
• feat(azure): dns metadata (tags) support by @​vaspoz in #​5984
• feat(client): add --kube-api-qps and --kube-api-burst flags for Kubernetes client rate limiting by @​ivankatliarchuk in #​6322
• feat(cli): remove cobra cli support by @​ivankatliarchuk in #​6034
• feat(cloudflare): support batch API for DNS record changes by @​mooseracerPT in #​6208
• feat(coredns): rename ownerId and ownedBy to owner by @​farodin91 in #​6032
• feat(coredns): use txt-owner-id to strictly separated external-dns instances by @​farodin91 in #​5921
• feat(crd): Support MX record with trailing dot by @​HartmannVolker in #​6163
• feat(endpoint): introduce record-type annotation and PTR endpoint helpers by @​clwluvw in #​6282
• feat(endpoint): reject alias property on unsupported record types by @​u-kai in #​6188
• feat(endpoint): validate PTR records in CheckEndpoint by @​clwluvw in #​6275
• feat: end to end testing with coredns provider by @​Raffo in #​5933
• feat(event): emit events for ingress,svc,pod,node,crd by @​ivankatliarchuk in #​6099
• feat(event): standardize event messages and add resource kind lookup for events by @​ivankatliarchuk in #​6101
• feat(fqdn): Deduplicate and sort ExecTemplate output. Add functions by @​ivankatliarchuk in #​6173
• feat(gateway): add gateway-api listenerset support by @​jukie in #​6254
• feat(informers): reduce informer cache memory footprint via object transformers by @​ivankatliarchuk in #​6240
• feat(metrics): added skipped_records_owner_mismatch_per_sync to track ownership conflicts by @​ivankatliarchuk in #​6121
• feat(pdns): add --[no-]prefer-alias flag and alias annotation support by @​ngnix in #​6129
• feat(pdns): support GetDomainFilter interface by @​clwluvw in #​6234
• feat(pihole)!: deprecate v5 API support by @​ivankatliarchuk in #​6123
• feat(registry/txt): enable support for SRV and NAPTR by @​alexbakker-quandago in #​6023
• feat(service)!: ignore unschedulable nodes by @​ivankatliarchuk in #​6002
• feat(source): add support for ingress backed GlooEdge Gateway by @​cucxabong in #​5909
• feat(source): add unstructured source by @​ivankatliarchuk in #​6172
• feat(source): gateway api hostname source annotation by @​bogdankrasko in #​5959
• feat(source/gateway-api)!: migrate Gateway and HTTPRoute to v1 by @​System-Arch in #​6291
• feat(source/istio)!: migrate gateway and virtualservice sources to networking.istio.io/v1 by @​ivankatliarchuk in #​6302
• feat(txt): add PTR record support to TXT registry mapper and PowerDNS trailing-dot handling by @​clwluvw in #​6281
• feat(webhook): instrument HTTP client with request duration metrics by @​ivankatliarchuk in #​6307

🐛 Bug fixes

• fix(annotations): initialize annotation keys at declaration time by @​ivankatliarchuk in #​6159
• fix(api): rollback changes for omitempty by @​ivankatliarchuk in #​6086
• fix(aws): use API validation for routing policies by @​u-kai in #​6082
• fix(chart): ptsc indentation by @​andylim0221 in #​6054
• fix(charts): add schema for provider.webhook.serviceMonitor by @​chrisbsmith in #​5932
• fix(charts): Skip cluster-scope RBAC on namespaced by @​TobyTheHutt in #​5843
• fix(ci): failed to download the coveralls binary from GitHub releases by @​ivankatliarchuk in #​6228
• fix(cloudflare): dns records pagination by @​rkferreira in #​5986
• fix(crd): allow trailing dot in CNAME targets by @​ivankatliarchuk in #​6218
• fix(domain-exclusion): domain exclusion filter fix by @​ivankatliarchuk in #​6050
• fix: e2e test with kind by @​Raffo in #​6162
• fix(endpoint): correct function name in comment by @​u-kai in #​6122
• fix(endpoint): ensure trailing dot to target as required by RFC 2782 by @​frittentheke in #​5534
• fix(events): re-enqueue failed events in controller work queue by @​lexfrei in #​6285
• fix(fake): Fake clientset hangs for 10s per informer with client-go 0.35+ by @​ivankatliarchuk in #​6235
• fix(flags): restore --min-ttl option by @​vflaux in #​6014
• fix(fqdn): remove invalid output by @​ivankatliarchuk in #​6046
• fix(fqdn): support kind and api version by @​ivankatliarchuk in #​6097
• fix(lint): remove govet exclusion from tests by @​vflaux in #​6315
• fix(lint): single file was not modernized by @​ivankatliarchuk in #​6059
• fix(metrics): add CNAME to known record types by @​marie-j in #​6115
• fix(pdns): ensure trailing dot for NS records by @​blsho in #​5992
• fix(rfc2136): wrap DNS resolution errors with SoftError to prevent crashes by @​e9169 in #​6227
• fix(scripts): helm plugins install disable verify by @​vflaux in #​6057
• fix(service): classify nodes by best pod state in externalTrafficPolicy=Local by @​ivankatliarchuk in #​6271
• fix(source): filter provider-specific properties to configured provider by @​ivankatliarchuk in #​6220
• fix(tlsutils): fix nil error wrapping and wrong env var in TLS config by @​ivankatliarchuk in #​6198
• fix(webhook): connection pool leaks, stuck goroutines on server hang, and retry correctness by @​ivankatliarchuk in #​6279
• fix(webhook): increase test client timeouts to prevent flaky tests by @​ivankatliarchuk in #​6310
• fix(zonefinder): transform zone name to unicode as well by @​rbeuque74 in #​5980

📝 Documentation

• fix(docs): Fixing typos in docs and comments by @​thetillhoff in #​5995
• fix(docs): flags by @​ivankatliarchuk in #​6288
• docs: add anexia docs page by @​davidkroell in #​6252
• docs: add BIND9 on Kubernetes with Kind tutorial for rfc2136 provider by @​clwluvw in #​6295
• docs: add bug report guide and improve issue template by @​ivankatliarchuk in #​6272
• docs: added DeepWiki by @​ivankatliarchuk in #​6215
• docs: add external-dns-pscloud-webhook to New providers list by @​supervillain3000 in #​6214
• docs: add infomaniak provider reference by @​M0NsTeRRR in #​6258
• docs: add instructions for local testing by @​mloiseleur in #​5887
• docs: add operational best practices guide by @​ivankatliarchuk in #​6287
• docs: add UniFi webhook provider to README by @​lexfrei in #​5967
• docs(aws): tutorial with kind and localstack by @​ivankatliarchuk in #​6048
• docs: Consistency review on namespaced configs in chart readme by @​josemaia in #​6146
• docs(contributor): GetDomainFilter contract and ZoneCache blueprint for provider contributors by @​ivankatliarchuk in #​6249
• docs: correct pod internal-hostname behavior in hostNetwork mode by @​cxmcc in #​6256
• docs: fix nested list indentation for web rendering by @​ROunofF in #​6092
• docs: fix typo in README by @​hritz220 in #​6095
• docs(fqdn-template): clarify fields and add examples by @​ivankatliarchuk in #​6098
• docs(fqdn): use correct arguments order in FQDN Templating custom functions by @​zcahana in #​6144
• docs(metrics): add Labels column to metrics documentation table by @​ivankatliarchuk in #​6306
• docs(ownerid): provide more details on migration by @​ivankatliarchuk in #​5999
• docs(proposal): Gateway API annotation placement clarity proposal by @​lexfrei in #​5919
• docs(readme): replace incorrect breaking change version v0.20.0 -> v0.19.0 by @​mangkoran in #​6100
• docs(regexfilter): pitfalls in domain-filter zone partitioning by @​ivankatliarchuk in #​6255
• docs: remove IBM Cloud DNS from README by @​prb112 in #​6007
• docs: remove link to external-dns-routeros-provider by @​benfiola in #​5996
• docs(rfc2136): hard learned lesson about AXFR by @​avanier in #​6083
• docs(source): autogenerate docs for events by @​ivankatliarchuk in #​6119
• docs(source): autogenerate docs for sources with go-doc like style by @​ivankatliarchuk in #​6075
• docs(sources): surface provider-specific annotations support in documentation by @​ivankatliarchuk in #​6231

📦 Others

• benchmark(endpoint): endpoint benchmarks by @​ivankatliarchuk in #​6156
• chore: add Simply webhook provider to README by @​uozalp in #​5979
• chore(aws): document and test behavior for ALB and NLB by @​ivankatliarchuk in #​6063
• chore(chart): release for v0.20.0 by @​vflaux in #​6005
• chore: cloudbild instance type bump by @​ivankatliarchuk in #​6340
• chore(cloudflare): improve tests by @​vflaux in #​6150
• chore(cloudflare): migrate customhostname to v5 by @​AndrewCharlesHay in #​5891
• chore(cloudflare): move custom hostnames logic to dedicated files by @​vflaux in #​6114
• chore(deps): bump github.com/aws/smithy-go from 1.23.2 to 1.24.0 in the dev-dependencies group by @​app/dependabot in #​5987
• chore(deps): bump github.com/cloudflare/cloudflare-go from v5 to v6 by @​vflaux in #​6324
• chore(deps): bump github.com/digitalocean/godo from 1.168.0 to 1.169.0 in the dev-dependencies group by @​app/dependabot in #​5956
• chore(deps): bump github.com/goccy/go-yaml from 1.18.0 to 1.19.0 in the dev-dependencies group by @​app/dependabot in #​5985
• chore(deps): bump golang.org/x/crypto from 0.44.0 to 0.45.0 by @​app/dependabot in #​5969
• chore(deps): bump go-linter version by @​ivankatliarchuk in #​6036
• chore(deps): bump google.golang.org/grpc from 1.79.2 to 1.79.3 by @​app/dependabot in #​6296
• chore(deps): bump mkdocs by @​ivankatliarchuk in #​6058
• chore(deps): bump mkdocs-git-revision-date-localized-plugin from 1.5.0 to 1.5.1 in /docs/scripts in the mkdocs-deps group by @​app/dependabot in #​6161
• chore(deps): bump mkdocs-material from 9.7.1 to 9.7.3 in /docs/scripts in the mkdocs-deps group by @​app/dependabot in #​6237
• chore(deps): bump pre-commit and fix markdown docs by @​ivankatliarchuk in #​6241
• chore(deps): bump renovatebot/github-action from 44.0.1 to 44.0.2 in the dev-dependencies group by @​app/dependabot in #​5950
• chore(deps): bump renovatebot/github-action from 44.0.5 to 44.1.0 in the dev-dependencies group by @​app/dependabot in #​6027
• chore(deps): bump renovatebot/github-action from 44.1.0 to 44.2.0 in the dev-dependencies group by @​app/dependabot in #​6029
• chore(deps): bump renovatebot/github-action from 44.2.0 to 44.2.1 in the dev-dependencies group by @​app/dependabot in #​6051
• chore(deps): bump renovatebot/github-action from 44.2.1 to 44.2.2 in the dev-dependencies group by @​app/dependabot in #​6064
• chore(deps): bump renovatebot/github-action from 44.2.2 to 44.2.3 in the dev-dependencies group by @​app/dependabot in #​6080
• chore(deps): bump renovatebot/github-action from 46.1.2 to 46.1.3 in the dev-dependencies group by @​app/dependabot in #​6243
• chore(deps): bump the dev-dependencies group across 1 directory with 10 updates by @​app/dependabot in #​5970
• chore(deps): bump the dev-dependencies group across 1 directory with 2 updates by @​app/dependabot in #​6116
• chore(deps): bump the dev-dependencies group across 1 directory with 39 updates by @​app/dependabot in #​6259
• chore(deps): bump the dev-dependencies group across 1 directory with 3 updates by @​app/dependabot in #​6226
• chore(deps): bump the dev-dependencies group across 1 directory with 4 updates by @​app/dependabot in #​5994
• chore(deps): bump the dev-dependencies group across 1 directory with 4 updates by @​app/dependabot in #​6018
• chore(deps): bump the dev-dependencies group across 1 directory with 9 updates by @​app/dependabot in #​5976
• chore(deps): bump the dev-dependencies group with 10 updates by @​app/dependabot in #​5990
• chore(deps): bump the dev-dependencies group with 10 updates by @​app/dependabot in #​6010
• chore(deps): bump the dev-dependencies group with 12 updates by @​app/dependabot in #​6001
• chore(deps): bump the dev-dependencies group with 13 updates by @​app/dependabot in #​6311
• chore(deps): bump the dev-dependencies group with 2 updates by @​app/dependabot in #​5962
• chore(deps): bump the dev-dependencies group with 5 updates by @​app/dependabot in #​6298
• chore(deps): bump the dev-dependencies group with 5 updates by @​app/dependabot in #​6330
• chore(deps): bump the dev-dependencies group with 7 updates by @​app/dependabot in #​6267
• chore(deps): bump the dev-dependencies group with 9 updates by @​app/dependabot in #​6274
• chore(deps): bump the dev-dependencies group with 9 updates by @​app/dependabot in #​6343
• chore(deps): bump the mkdocs-deps group in /docs/scripts with 2 updates by @​app/dependabot in #​6273
• chore(deps): bump the mkdocs-deps group in /docs/scripts with 3 updates by @​app/dependabot in #​6331
• chore(deps): bump the mkdocs-deps group in /docs/scripts with 4 updates by @​app/dependabot in #​6071
• chore(deps): configure dependabot for mkdocs deps by @​ivankatliarchuk in #​6067
• chore(deps): tools bump and process in contributor docs by @​ivankatliarchuk in #​6118
• chore(doc): Adding EKS Pod Identity Associations section for AWS by @​sw360cab in #​6084
• chore(e2e): remove call to get latest kubectl by @​Raffo in #​6148
• chore(endpoint): added empty checks by @​ivankatliarchuk in #​6157
• chore(endpoint): harden AES-GCM encryption and remove sensitive data from logs by @​ivankatliarchuk in #​6197
• chore(go): upgrade to go1.26 by @​vflaux in #​6314
• chore(ingress): added tests to cover specific behaviour by @​ivankatliarchuk in #​6060
• chore(ingress): clarify that both IP and Hostname are collected from LoadBalancer status by @​ivankatliarchuk in #​6138
• chore(lint): configure modernize linter by @​ivankatliarchuk in #​6035
• chore(linter): enable unparam by @​ivankatliarchuk in #​6160
• chore(linter): unused params and functions linter by @​ivankatliarchuk in #​6142
• chore(lint): update golanci-lint by @​vflaux in #​6320
• (chore) Minimize GitHub Actions workflow permissions by @​Raffo in #​6319
• chore: modernize code by @​vflaux in #​6313
• chore(node): remove warning msg by @​ivankatliarchuk in #​6070
• chore(provider): zone cache provider interface by @​ivankatliarchuk in #​6120
• chore(registry): move registries to packages by @​ivankatliarchuk in #​6066
• chore(release): updates kustomize & docs with v0.20.0 by @​mloiseleur in #​5958
• chore(set-identifier): expand annotation docs and add test coverage by @​ivankatliarchuk in #​6230
• chore(source): standardize source fields with sources.Config by @​ivankatliarchuk in #​6073
• chore(source): standardize sources by @​ivankatliarchuk in #​6089
• chore(source): standardize sources with merge endpionts and deduplication by @​ivankatliarchuk in #​6174
• chore(store): Added RESTConfig() to ClientGenerator by @​ivankatliarchuk in #​6177
• chore(tests): Add YAML-driven integration test framework for sources by @​ivankatliarchuk in #​6158
• chore(tools): CRD generation script moved and add validation workflow by @​ivankatliarchuk in #​6079
• chore: update to go 1.25.5 for CVE-2025-61729 and CVE-2025-61727 by @​goat-ssh in #​6000
• chore(wrapper): centralized endpoint validation by @​ivankatliarchuk in #​6041
• ci: finish gha pinning by @​mloiseleur in #​6327
• ci: fix revision label by @​ivankatliarchuk in #​6332
• ci: read golangci-lint version from scripts/install-tools.sh in lint workflow by @​ivankatliarchuk in #​6347
• ci: validate Go version consistency across cloudbuild.yaml, go.mod, and go.tool.mod by @​ivankatliarchuk in #​6323
• deps(dependabot): change frequency by @​ivankatliarchuk in #​6268
• deps(go): bump go from 1.25.5 -> 1.25.7. CVE fixes by @​ivankatliarchuk in #​6175
• deps(go): bump go from 1.25.7 -> 1.25.8 by @​aibaars in #​6305
• linter(goimports): Mixed import groups (internal before external) by @​ivankatliarchuk in #​6238
• linter(usetesting): enable usetesting by @​ivankatliarchuk in #​6266
• perf(controller): optimize metrics counting by @​ivankatliarchuk in #​6124
• perf(source/istio): replace API calls with indexed informer cache for gateway and virtualservice sources by @​ivankatliarchuk in #​6303
• Pin all GitHub Actions to commit SHAs per Kubernetes policy by @​Raffo in #​6316
• refactor(annotation): rationalize filtering by @​ivankatliarchuk in #​6065
• refactor(api): deduplicate addKnownTypes by @​ivankatliarchuk in #​6087
• refactor(aws): abstract provider-specific boolean parsing by @​u-kai in #​6078
• refactor(aws): extract and restructure alias-handling logic to enable safe upcoming fixes by @​u-kai in #​6021
• refactor(controller): controller no longer responsible for SingletonClientGenerator creation by @​ivankatliarchuk in #​6077
• refactor(controller): reduce coupling for registry and controller by @​ivankatliarchuk in #​6047
• refactor(docs): documentation generators by @​ivankatliarchuk in #​6221
• refactor(domainfilter): introduce functional options pattern by @​ivankatliarchuk in #​6055
• refactore(source): move EndpointsForHostname to endpoints package by @​ivankatliarchuk in #​6248
• refactor(fqdn): encapsulate FQDN template logic into TemplateEngine by @​ivankatliarchuk in #​6292
• refactor(informers): unify cache sync functions using generics by @​ivankatliarchuk in #​6102
• refactor(kubeclient): consolidate duplicate code by @​ivankatliarchuk in #​6076
• refactor(lint): replace with NewSoftErrorf when possible by @​vflaux in #​6061
• refactor(plan): cleanup and modernize plan package by @​ivankatliarchuk in #​6294
• refactor(plan): extract normalizeDNSName to idna package for reuse by @​u-kai in #​6043
• refactor(plan): reduce Calculate() cyclomatic complexity by @​vflaux in #​5961
• refactor(provider): introduce factory with uniform New constructor by @​ivankatliarchuk in #​6276
• refactor(registry): introduce factory with uniform New constructors by @​ivankatliarchuk in #​6277
• refactor(source/crd): migrate CRD source to controller-runtime cache by @​ivankatliarchuk in #​6312
• refactor(source): handle context in similar way by @​ivankatliarchuk in #​6049
• refactor(source): inline label selector matching, remove MatchesServiceSelector by @​ivankatliarchuk in #​6304
• refactor(source): move SuitableType to endpoint package by @​ivankatliarchuk in #​6239
• refactor(source): standardize FQDN template accross sources by @​ivankatliarchuk in #​6093
• refactor(source): use less memory on deduplication by @​mloiseleur in #​6020
• refactor(test): deduplicate endpoint assertion helpers across source by @​ivankatliarchuk in #​6299
• refactor(testutils): extract log test helpers into subpackage to fix circular import by @​u-kai in #​6236
• refactor(wrappers): introduce wrapper.Build as single entry point for source pipeline by @​ivankatliarchuk in #​6300
• Revert "chore(deps): bump github.com/cloudflare/cloudflare-go from v5 to v6" by @​ivankatliarchuk in #​6338
• test: cover pkg/events/fake package by @​hritz220 in #​6096
• test: fix typos in code & comment by @​dongjiang1989 in #​6011
• test(fqdn): cover sources without any fqdn tests by @​ivankatliarchuk in #​6094
• test: improve code coverage by @​ivankatliarchuk in #​6321
• test: improve code coverage on aws, cloudfoundry & nat64 source by @​ivankatliarchuk in #​6045
• test(provider): improved the test coverage for exoscale provider by @​upsaurav12 in #​6112

📦 Docker Image

docker pull registry.k8s.io/external-dns/external-dns:v0.21.0

New Contributors

• @​cucxabong made their first contribution in #​5909
• @​uozalp made their first contribution in #​5979
• @​thetillhoff made their first contribution in #​5995
• @​blsho made their first contribution in #​5992
• @​prb112 made their first contribution in #​6007
• @​chrisbsmith made their first contribution in #​5932
• @​rkferreira made their first contribution in #​5986
• @​alexbakker-quandago made their first contribution in #​6023
• @​andylim0221 made their first contribution in #​6054
• @​avanier made their first contribution in #​6083
• @​sw360cab made their first contribution in #​6084
• @​hritz220 made their first contribution in #​6095
• @​bogdankrasko made their first contribution in #​5959
• @​marie-j made their first contribution in #​6115
• @​ROunofF made their first contribution in #​6092
• @​zcahana made their first contribution in #​6144
• @​HartmannVolker made their first contribution in #​6163
• @​supervillain3000 made their first contribution in #​6214
• @​ngnix made their first contribution in #​6129
• @​cxmcc made their first contribution in #​6256
• @​e9169 made their first contribution in #​6227
• @​clwluvw made their first contribution in #​6234
• @​mooseracerPT made their first contribution in #​6208
• @​davidkroell made their first contribution in #​6252
• @​mangkoran made their first contribution in #​6100
• @​josemaia made their first contribution in #​6146
• @​aibaars made their first contribution in #​6305
• @​vaspoz made their first contribution in #​5984
• @​jukie made their first contribution in #​6254
• @​System-Arch made their first contribution in #​6291

Full Changelog: kubernetes-sigs/external-dns@v0.20.0...v0.21.0

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