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cni: lower default plpmtud setting to "blackhole detected".#43710

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joestringer merged 1 commit intocilium:mainfrom
tommyp1ckles:pr/tp/set-tcp-probing-cfg-to-blackhole
Jan 27, 2026
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cni: lower default plpmtud setting to "blackhole detected".#43710
joestringer merged 1 commit intocilium:mainfrom
tommyp1ckles:pr/tp/set-tcp-probing-cfg-to-blackhole

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@tommyp1ckles tommyp1ckles commented Jan 13, 2026

Setting this to 2 by default might be too aggressive as it is has been brought up that this may lead to issues in instances with high amounts of ephemeral connections (i.e. multiplying the overhead). Therefore we rework this prior to v1.19 such that cilium can be configured to use any valid value for endpoints or leave it empty to simply inherit from host settings.

Fixes: #42012

Add support for specifying plpmtud (mtu discovery) settings for Pod endpoints, with the default now being "blackhole" (blackhole-detected).

@maintainer-s-little-helper maintainer-s-little-helper bot added the dont-merge/needs-release-note-label The author needs to describe the release impact of these changes. label Jan 13, 2026
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/test

@tommyp1ckles tommyp1ckles added the release-blocker/1.19 This issue will prevent the release of the next version of Cilium. label Jan 13, 2026
@tommyp1ckles tommyp1ckles added area/datapath Impacts bpf/ or low-level forwarding details, including map management and monitor messages. area/mtu Relates to MTU management in Cilium. labels Jan 13, 2026
@tommyp1ckles tommyp1ckles requested a review from msune January 13, 2026 02:13
@tommyp1ckles tommyp1ckles force-pushed the pr/tp/set-tcp-probing-cfg-to-blackhole branch from 590161a to d882b1b Compare January 13, 2026 02:17
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/test

@joestringer joestringer moved this from Proposed to Active in Release blockers Jan 14, 2026
@tommyp1ckles tommyp1ckles marked this pull request as ready for review January 16, 2026 05:20
@tommyp1ckles tommyp1ckles requested review from a team as code owners January 16, 2026 05:20
@tommyp1ckles tommyp1ckles force-pushed the pr/tp/set-tcp-probing-cfg-to-blackhole branch from d882b1b to 715cbf5 Compare January 17, 2026 01:40
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Thanks. Some changes requested

@tommyp1ckles tommyp1ckles added the release-note/bug This PR fixes an issue in a previous release of Cilium. label Jan 20, 2026
@maintainer-s-little-helper maintainer-s-little-helper bot removed the dont-merge/needs-release-note-label The author needs to describe the release impact of these changes. label Jan 20, 2026
@tommyp1ckles tommyp1ckles force-pushed the pr/tp/set-tcp-probing-cfg-to-blackhole branch from 715cbf5 to c34f7f3 Compare January 20, 2026 05:50
@tommyp1ckles tommyp1ckles requested a review from gandro January 20, 2026 05:51
@tommyp1ckles tommyp1ckles force-pushed the pr/tp/set-tcp-probing-cfg-to-blackhole branch from c34f7f3 to 72db171 Compare January 20, 2026 05:53
@tommyp1ckles tommyp1ckles force-pushed the pr/tp/set-tcp-probing-cfg-to-blackhole branch 4 times, most recently from 95c085b to 0bae212 Compare January 26, 2026 20:50
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Not sure where Documentation/cmdref/cilium-dbg_policy_subject-selectors.md came from, let me re-run update-cmdref

Comment on lines +118 to +119
case "unset", "":
return "", nil
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No difference, just seemed reasonable to have an explicit "unset" value but also treat "" to default to the same behaviour.

@cilium cilium deleted a comment from joestringer Jan 26, 2026
Setting this to 2 by default might be too aggressive as it
is has been brought up that this may lead to issues in instances
with high amounts of ephemeral connections (i.e. multiplying the
overhead). Therefore we rework this prior to v1.19 such that cilium
can be configured to use any valid value for endpoints or leave it
empty to simply inherit from host settings.

Signed-off-by: Tom Hadlaw <[email protected]>
@tommyp1ckles tommyp1ckles force-pushed the pr/tp/set-tcp-probing-cfg-to-blackhole branch from 0bae212 to af9b4e8 Compare January 26, 2026 21:13
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/test

@joestringer joestringer enabled auto-merge January 26, 2026 21:27
@joestringer joestringer disabled auto-merge January 27, 2026 00:07
@joestringer joestringer merged commit 54157c0 into cilium:main Jan 27, 2026
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@github-project-automation github-project-automation bot moved this from Active to Done in Release blockers Jan 27, 2026
@tommyp1ckles tommyp1ckles deleted the pr/tp/set-tcp-probing-cfg-to-blackhole branch January 27, 2026 00:15
@joestringer joestringer added backport-pending/1.19 The backport for Cilium 1.19.x for this PR is in progress. and removed needs-backport/1.19 This PR / issue needs backporting to the v1.19 branch labels Jan 27, 2026
@github-actions github-actions bot added backport-done/1.19 The backport for Cilium 1.19.x for this PR is done. and removed backport-pending/1.19 The backport for Cilium 1.19.x for this PR is in progress. labels Jan 27, 2026
@joestringer joestringer added release-note/minor This PR changes functionality that users may find relevant to operating Cilium. and removed release-note/bug This PR fixes an issue in a previous release of Cilium. labels Jan 27, 2026
@cilium-release-bot cilium-release-bot bot moved this to Released in cilium v1.19.0 Feb 3, 2026
alexlebens pushed a commit to alexlebens/infrastructure that referenced this pull request Feb 5, 2026
This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [cilium](https://cilium.io/) ([source](https://github.com/cilium/cilium)) | minor | `1.18.6` → `1.19.0` |

---

### Release Notes

<details>
<summary>cilium/cilium (cilium)</summary>

### [`v1.19.0`](https://github.com/cilium/cilium/releases/tag/v1.19.0): 1.19.0

[Compare Source](cilium/cilium@1.18.6...1.19.0)

🎉 **Release Announcement** 🎉: We are excited to announce the [Cilium 1.19.0](https://github.com/cilium/cilium/releases/tag/v1.19.0) release!

A total of **2934 new commits** have been contributed to this release by a growing community of over **1010 developers** and over **23,600 GitHub stars**! 🤩

⚠️ You may need to take action during upgrade to Cilium v1.19 if you use Network Policies, Cluster Mesh, LoadBalancer IPAM or BGP. See the [Upgrade Guide](https://docs.cilium.io/en/v1.19/operations/upgrade/#upgrade-notes) for more details.

The full changelog can be found [here](https://github.com/cilium/cilium/blob/v1.19/CHANGELOG.md).

Here are some of the highlights:

- 🛡️ **Network Policy**
  - 🃏 **Multi-Level DNS Matches**: DNS Policies match pattern now support a wildcard prefix(*`**.`*) to match multilevel subdomain as pattern prefix. ([cilium/cilium#43420](cilium/cilium#43420), [@&#8203;fristonio](https://github.com/fristonio))
  - 📡 **Match New Protocols**: You can now match VRRP and IGMP protocols in host firewall rules. ([cilium/cilium#39872](cilium/cilium#39872), [@&#8203;aditighag](https://github.com/aditighag); [cilium/cilium#41949](cilium/cilium#41949), [@&#8203;kyounghunJang](https://github.com/kyounghunJang))
  - ⛔ **Actively Deny Connections**: When Network Policies deny a connection, Cilium can return ICMPv4 "Destination unreachable" messages for a friendlier deny. ([cilium/cilium#41406](cilium/cilium#41406), [@&#8203;antonipp](https://github.com/antonipp))
  - 🌐 **Select Clusters Explicitly**: When network policy selectors don't explicitly define a cluster for communication to be allowed, they will now default to only allowing the local cluster. ([cilium/cilium#40609](cilium/cilium#40609), [@&#8203;MrFreezeex](https://github.com/MrFreezeex))
  - 🔧 **Unlock Future Work**: This release brings several internal improvements to the network policy engine in preparation for features planned in the next Cilium minor release ([cilium/cilium#39906](cilium/cilium#39906), [@&#8203;vipul-21](https://github.com/vipul-21); [cilium/cilium#42784](cilium/cilium#42784), [cilium/cilium#42896](cilium/cilium#42896), [@&#8203;jrajahalme](https://github.com/jrajahalme))
  - ⚠️ **Deprecate underutilized features**: To focus on solving common problems Cilium users face, this release deprecates the Kafka protocol match fields (beta), as well as the `ToRequires` and `FromRequires` policy fields. ([cilium/cilium#43167](cilium/cilium#43167), [@&#8203;sayboras](https://github.com/sayboras); [cilium/cilium#40967](cilium/cilium#40967), [@&#8203;TheBeeZee](https://github.com/TheBeeZee))

- 🔒 **Encryption & Authentication**
  - 🔐 **Encryption Strict Modes**: Both IPsec and WireGuard transparent encryption modes now support a "strict mode" to require traffic to be encrypted between nodes. Unencrypted traffic will be dropped in this mode. ([cilium/cilium#39239](cilium/cilium#39239), [cilium/cilium#42115](cilium/cilium#42115), [@&#8203;rgo3](https://github.com/rgo3), [@&#8203;julianwiedmann](https://github.com/julianwiedmann))
  - 🚇 **Ztunnel Beta**: You can enroll namespaces into Ztunnel, which enables TCP connections between workloads to be transparently encrypted and authenticated. ([cilium/cilium#42766](cilium/cilium#42766), [cilium/cilium#42819](cilium/cilium#42819), [cilium/cilium#43227](cilium/cilium#43227) and others,  [@&#8203;ldelossa](https://github.com/ldelossa), [@&#8203;rgo3](https://github.com/rgo3), [@&#8203;nddq](https://github.com/nddq))
  - 👥 **Mutual Authentication**: The out-of-band [Mutual Authentication](https://docs.cilium.io/en/v1.19.0/network/servicemesh/mutual-authentication/mutual-authentication/) feature is now disabled by default, pending community feedback. If you have a requirement for mTLS, consider trying the new Ztunnel integration. ([cilium/cilium#42665](cilium/cilium#42665), [@&#8203;christarazi](https://github.com/christarazi))
  - ↪️ **Accelerate IPsec**: The IPsec encryption mode now supports BPF Host Routing for faster route lookups ([cilium/cilium#41997](cilium/cilium#41997), [@&#8203;pchaigno](https://github.com/pchaigno))

- 🚠 **Networking**
  - 🚀  **BIG TCP in Tunnels**: Leverage upcoming Linux support for BIG TCP when communicating over UDP-based tunnels such as VXLAN and Geneve. ([cilium/cilium#43416](cilium/cilium#43416), [@&#8203;gentoo-root](https://github.com/gentoo-root))
  - 🥌 **Packetization-Layer Path MTU Discovery**: Detect maximum transmission unit (MTU) sizes for network paths using TCP. ([cilium/cilium#42012](cilium/cilium#42012), [cilium/cilium#43710](cilium/cilium#43710), [@&#8203;tommyp1ckles](https://github.com/tommyp1ckles))
  - 🚆 **IPv6 Underlay**: You can now choose IPv6 for the tunnel underlay address family on dual-stack clusters. ([cilium/cilium#40324](cilium/cilium#40324), [@&#8203;pchaigno](https://github.com/pchaigno))
  - 🏷️ **Multi-Pool IPAM is ready for wider use**: Update the Multi-Pool IPAM feature to work with IPsec and direct routing modes, and promote it from Beta to Stable. ([cilium/cilium#40460](cilium/cilium#40460), [cilium/cilium#42191](cilium/cilium#42191), [@&#8203;pippolo84](https://github.com/pippolo84))
  - 🎭 **More Configurable Masquerade**: IP Masquerade configuration can now be customized for traffic sent to nodes in other IP subnets, and addresses in IPAM pools can be excluded from masquerade ([cilium/cilium#37568](cilium/cilium#37568), [@&#8203;behzad-mir](https://github.com/behzad-mir); [cilium/cilium#43380](cilium/cilium#43380), [@&#8203;alimehrabikoshki](https://github.com/alimehrabikoshki))

- 🕸️ **Services and Service Mesh**
  - 📣 **Layer-2 Announcements**: Add support for Neighbor Discovery Advertisements for IPv6 Layer-2 Announcements. ([cilium/cilium#39648](cilium/cilium#39648), [@&#8203;msune](https://github.com/msune))
  - 🔁 **IPv6 Service Loopback**: Pods can now connect to themselves via a Kubernetes "loopback service" using IPv6. ([cilium/cilium#39594](cilium/cilium#39594), [@&#8203;saiaunghlyanhtet](https://github.com/saiaunghlyanhtet))
  - ⛩️ **Gateway API Enhancements**: Cilium's GAMMA support now includes support for using GRPCRoute as well as HTTPRoute. ([cilium/cilium#41936](cilium/cilium#41936), [@&#8203;youngnick](https://github.com/youngnick))

- 🛣️ **Border Gateway Protocol (BGP)**
  - 🔌 **Advertise Addresses from Interfaces**: There's a new Interface BGP advertisement type that allows advertisement of IPs assigned on local interfaces. This can be useful for example in multi-homing setups, where a common node's loopback address can be advertised via multiple BGP sessions over different network interfaces. ([cilium/cilium#42469](cilium/cilium#42469), [@&#8203;rastislavs](https://github.com/rastislavs))
  - ✉️ **Override Source IP addresses**: You can override the auto-generated BGP session source IP with the IP address applied on the configured `sourceInterface` to allow binding the BGP connection to the loopback address which is not tied to the specific physical interface's lifecycle ([cilium/cilium#42583](cilium/cilium#42583), [@&#8203;rastislavs](https://github.com/rastislavs))
  - 🔁 **Withdraw Empty Routes**: Optionally withdraw BGP routes when a service has 0 endpoints, to allow balancing to a different DC/cluster with `externalTrafficPolicy=Cluster` ([cilium/cilium#40717](cilium/cilium#40717), [@&#8203;oblazek](https://github.com/oblazek))
  - ⚠️ **Move to `cilium.io/v2` API**: The support for the older `CiliumBGPPeeringPolicy` v1 API is now removed and should be replaced with v2 APIs. ([cilium/cilium#42278](cilium/cilium#42278), [@&#8203;rastislavs](https://github.com/rastislavs))

- 🛰️ **Observability**
  - 🔬 **Trace IP Options**: Configure Cilium and Hubble to trace specific packets through the cluster using IP Options. ([cilium/cilium#41306](cilium/cilium#41306), [@&#8203;Bigdelle](https://github.com/Bigdelle))
  - 🚩 **Filter Encrypted Flows**: Filter flows when using the `hubble` command line to understand the encryption status of the traffic, either `--encrypted` or `--unencrypted`. ([cilium/cilium#43096](cilium/cilium#43096), [@&#8203;SRodi](https://github.com/SRodi))
  - 🔖 **Tag Drops with Policy Names**: Hubble v1.Events drop messages now include which Network Policy caused the drop. ([cilium/cilium#41693](cilium/cilium#41693), [@&#8203;41ks](https://github.com/41ks))

- 🌅 **Performance and Scale**
  - ⚡ **Faster Network Policy Computation**: Improve Cilium resource usage for handling selectors in network policies. ([cilium/cilium#42008](cilium/cilium#42008), [@&#8203;jrajahalme](https://github.com/jrajahalme); [cilium/cilium#42580](cilium/cilium#42580), [@&#8203;odinuge](https://github.com/odinuge))
  - 🔌 **More Efficient Connection Tracking**: Several improvements have been made to reduce the number of connections being tracked by Cilium, particularly when using Geneve, VXLAN or WireGuard. ([cilium/cilium#38782](cilium/cilium#38782), [@&#8203;BenoitKnecht](https://github.com/BenoitKnecht); [cilium/cilium#41990](cilium/cilium#41990), [@&#8203;bersoare](https://github.com/bersoare))
  - 💾 **Better Scale in AWS**: Reduce memory usage for cilium-operator in large AWS environments with many resources. ([cilium/cilium#42529](cilium/cilium#42529), [@&#8203;liyihuang](https://github.com/liyihuang))

- ⚙️ **Operations**
  - 📦 **Access Helm charts via Registry**: Helm charts are also available under `quay.io/cilium/charts/cilium` ([cilium/cilium#43624](cilium/cilium#43624), [@&#8203;aanm](https://github.com/aanm))
  - 📊 **Metrics Encryption**: Add TLS/mTLS support for Prometheus metrics exposed by the Cilium Operator. ([cilium/cilium#42077](cilium/cilium#42077), [@&#8203;phuhung273](https://github.com/phuhung273))
  - 🤖 **Easier Multi-Cluster install**: There's now support for auto-installing the Custom Resource Definitions (CRDs) for Multi-Cluster  Services (MCS). ([cilium/cilium#40729](cilium/cilium#40729), [@&#8203;MrFreezeex](https://github.com/MrFreezeex))
  - 📜 **Simpler Certificate Management**: Streamline Cluster Mesh and Hubble certificate generation when using GitOps approaches. ([cilium/cilium#42298](cilium/cilium#42298), [@&#8203;MrFreezeex](https://github.com/MrFreezeex))
  - 🛠️ **Cilium dependencies** were updated to Kubernetes v1.35, Envoy v1.35, Gateway API v1.4, and GoBGP v3.37. ([cilium/cilium#43422](cilium/cilium#43422), [@&#8203;aanm](https://github.com/aanm); [cilium/cilium#40569](cilium/cilium#40569), [@&#8203;sayboras](https://github.com/sayboras); [cilium/cilium#41936](cilium/cilium#41936), [@&#8203;youngnick](https://github.com/youngnick); [cilium/cilium#42824](cilium/cilium#42824), [@&#8203;rastislavs](https://github.com/rastislavs)).

- 🏠 **Community**
  - ❤️ **Production Case Studies**: Many end-users have stepped forward to tell their stories running Cilium in production. If your company wants to submit their case studies let us know. We would love to hear your feedback!
  - 📰 See studies with [Airbnb](https://youtu.be/7KHenRXNGAw?si=ldTS-X_W0svxo429\&t=546), [Cloudera](https://aws.amazon.com/blogs/migration-and-modernization/scaling-clouderas-development-environment-leveraging-amazon-eks-karpenter-bottlerocket-and-cilium-for-hybrid-cloud/),[ Cybozu](https://www.cncf.io/case-studies/cybozu/), [ESnet](https://www.cncf.io/case-studies/esnet/),[ Nutanix](https://www.cncf.io/case-studies/nutanix/), [OVHcloud](https://corporate.ovhcloud.com/en-gb/newsroom/news/ovhcloud-managed-kubernetes-service-standard-3az/), [TikTok](https://www.youtube.com/watch?v=y0qlhiKtDGo), [University of Wisconsin–Madison](https://www.cncf.io/case-studies/university-of-wisconsin-madison/).
  - 🇺🇸 **Atlanta Events**: The community gathered at [CiliumCon](https://www.youtube.com/playlist?list=PLDg_GiBbAx-mOnWuzd_NXoRfuW9HZAxeZ) and the [Cilium Developer Summit](https://github.com/cilium/dev-summits/blob/main/2025-NA/README.md) in Atlanta.
  - 🇳🇱 **Amsterdam Events**: Meet us at the upcoming [CiliumCon](https://events.linuxfoundation.org/kubecon-cloudnativecon-europe/co-located-events/ciliumcon/) and [Cilium Developer Summit](https://github.com/cilium/dev-summits/tree/main/2026-EU) in Amsterdam, March 23-27. [Read more](https://cilium.io/blog/2026/01/23/cilium-at-kubecon-eu-2026/) about where to find Cilium during the show.
  - 🔟 **Cilium is 10**: Read the [2025 Cilium Annual Report](https://www.cncf.io/wp-content/uploads/2025/12/cilium-annual-report-2025-final.pdf) to see the latest project milestones, a decade on from its first commit.

To keep up to date with all the latest Cilium releases, join #release 🎉

:birthday::heart::heart::heart::birthday:
This is a very special release for Cilium, as it celebrates **10 years** since the first commit. We couldn’t be more proud of what this project has accomplished. All the GitHub issues, pull requests, reviews, stars, forks, Docker pulls, Helm installs, Kubernetes applies, CI runs, bug reports, design docs, discussions, meetings, Slack messages, YouTube streams, eCHO episodes, conference talks, blog posts, demos, and presentations have made the project the success it is today.
:birthday::heart::heart::heart::birthday:

##### Docker Manifests

##### cilium

`quay.io/cilium/cilium:v1.19.0@&#8203;sha256:be9f8571c2e114b3e12e41f785f2356ade703b2eac936aa878805565f0468c60`

##### clustermesh-apiserver

`quay.io/cilium/clustermesh-apiserver:v1.19.0@&#8203;sha256:0e3b89fdb116eb0f5579fe8ee3fabb1a7c4d97987a1ae927491d9185785d4a49`

##### docker-plugin

`quay.io/cilium/docker-plugin:v1.19.0@&#8203;sha256:35727047384f3d7a2684885003b266bf7a7add8fc66ca564b222f71c16057f50`

##### hubble-relay

`quay.io/cilium/hubble-relay:v1.19.0@&#8203;sha256:7f17e5bb51a9f35bbc8e7a9ad5e347f03ff8003c2e5cc81171e8727a10bf03b4`

##### operator-alibabacloud

`quay.io/cilium/operator-alibabacloud:v1.19.0@&#8203;sha256:5cb3d6981c233616037f3e13b5bc0020d114ad8db1b7360618b224e4c0b02ef0`

##### operator-aws

`quay.io/cilium/operator-aws:v1.19.0@&#8203;sha256:7a236ae256a4fbd3f72d516921131eba5b43f401ba37cdee5cd0e8c26f9263e6`

##### operator-azure

`quay.io/cilium/operator-azure:v1.19.0@&#8203;sha256:6ae7e0d75c74836af3600b775201c89ea7fcc13d6e08fdb0c52927309f31cd2a`

##### operator-generic

`quay.io/cilium/operator-generic:v1.19.0@&#8203;sha256:5b04006015e5800307dc6314676edc4c0bb7ac2fc7848be2b94b43bb030ab648`

##### operator

`quay.io/cilium/operator:v1.19.0@&#8203;sha256:deca84f442752dca0745dd09b13e8004569414839019ad79ac58f9fcaa3b9d65`

</details>

---

### 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 is behind base branch, or you tick the rebase/retry checkbox.

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

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4wLjIiLCJ1cGRhdGVkSW5WZXIiOiI0My4wLjMiLCJ0YXJnZXRCcmFuY2giOiJtYWluIiwibGFiZWxzIjpbImNoYXJ0Il19-->

Reviewed-on: https://gitea.alexlebens.dev/alexlebens/infrastructure/pulls/3699
Co-authored-by: Renovate Bot <[email protected]>
Co-committed-by: Renovate Bot <[email protected]>
alexlebens pushed a commit to alexlebens/infrastructure that referenced this pull request Feb 5, 2026
This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [cilium/cilium](https://github.com/cilium/cilium) | minor | `1.18.6` → `1.19.0` |

---

### Release Notes

<details>
<summary>cilium/cilium (cilium/cilium)</summary>

### [`v1.19.0`](https://github.com/cilium/cilium/releases/tag/v1.19.0): 1.19.0

[Compare Source](cilium/cilium@1.18.6...1.19.0)

🎉 **Release Announcement** 🎉: We are excited to announce the [Cilium 1.19.0](https://github.com/cilium/cilium/releases/tag/v1.19.0) release!

A total of **2934 new commits** have been contributed to this release by a growing community of over **1010 developers** and over **23,600 GitHub stars**! 🤩

⚠️ You may need to take action during upgrade to Cilium v1.19 if you use Network Policies, Cluster Mesh, LoadBalancer IPAM or BGP. See the [Upgrade Guide](https://docs.cilium.io/en/v1.19/operations/upgrade/#upgrade-notes) for more details.

The full changelog can be found [here](https://github.com/cilium/cilium/blob/v1.19/CHANGELOG.md).

Here are some of the highlights:

- 🛡️ **Network Policy**
  - 🃏 **Multi-Level DNS Matches**: DNS Policies match pattern now support a wildcard prefix(*`**.`*) to match multilevel subdomain as pattern prefix. ([cilium/cilium#43420](cilium/cilium#43420), [@&#8203;fristonio](https://github.com/fristonio))
  - 📡 **Match New Protocols**: You can now match VRRP and IGMP protocols in host firewall rules. ([cilium/cilium#39872](cilium/cilium#39872), [@&#8203;aditighag](https://github.com/aditighag); [cilium/cilium#41949](cilium/cilium#41949), [@&#8203;kyounghunJang](https://github.com/kyounghunJang))
  - ⛔ **Actively Deny Connections**: When Network Policies deny a connection, Cilium can return ICMPv4 "Destination unreachable" messages for a friendlier deny. ([cilium/cilium#41406](cilium/cilium#41406), [@&#8203;antonipp](https://github.com/antonipp))
  - 🌐 **Select Clusters Explicitly**: When network policy selectors don't explicitly define a cluster for communication to be allowed, they will now default to only allowing the local cluster. ([cilium/cilium#40609](cilium/cilium#40609), [@&#8203;MrFreezeex](https://github.com/MrFreezeex))
  - 🔧 **Unlock Future Work**: This release brings several internal improvements to the network policy engine in preparation for features planned in the next Cilium minor release ([cilium/cilium#39906](cilium/cilium#39906), [@&#8203;vipul-21](https://github.com/vipul-21); [cilium/cilium#42784](cilium/cilium#42784), [cilium/cilium#42896](cilium/cilium#42896), [@&#8203;jrajahalme](https://github.com/jrajahalme))
  - ⚠️ **Deprecate underutilized features**: To focus on solving common problems Cilium users face, this release deprecates the Kafka protocol match fields (beta), as well as the `ToRequires` and `FromRequires` policy fields. ([cilium/cilium#43167](cilium/cilium#43167), [@&#8203;sayboras](https://github.com/sayboras); [cilium/cilium#40967](cilium/cilium#40967), [@&#8203;TheBeeZee](https://github.com/TheBeeZee))

- 🔒 **Encryption & Authentication**
  - 🔐 **Encryption Strict Modes**: Both IPsec and WireGuard transparent encryption modes now support a "strict mode" to require traffic to be encrypted between nodes. Unencrypted traffic will be dropped in this mode. ([cilium/cilium#39239](cilium/cilium#39239), [cilium/cilium#42115](cilium/cilium#42115), [@&#8203;rgo3](https://github.com/rgo3), [@&#8203;julianwiedmann](https://github.com/julianwiedmann))
  - 🚇 **Ztunnel Beta**: You can enroll namespaces into Ztunnel, which enables TCP connections between workloads to be transparently encrypted and authenticated. ([cilium/cilium#42766](cilium/cilium#42766), [cilium/cilium#42819](cilium/cilium#42819), [cilium/cilium#43227](cilium/cilium#43227) and others,  [@&#8203;ldelossa](https://github.com/ldelossa), [@&#8203;rgo3](https://github.com/rgo3), [@&#8203;nddq](https://github.com/nddq))
  - 👥 **Mutual Authentication**: The out-of-band [Mutual Authentication](https://docs.cilium.io/en/v1.19.0/network/servicemesh/mutual-authentication/mutual-authentication/) feature is now disabled by default, pending community feedback. If you have a requirement for mTLS, consider trying the new Ztunnel integration. ([cilium/cilium#42665](cilium/cilium#42665), [@&#8203;christarazi](https://github.com/christarazi))
  - ↪️ **Accelerate IPsec**: The IPsec encryption mode now supports BPF Host Routing for faster route lookups ([cilium/cilium#41997](cilium/cilium#41997), [@&#8203;pchaigno](https://github.com/pchaigno))

- 🚠 **Networking**
  - 🚀  **BIG TCP in Tunnels**: Leverage upcoming Linux support for BIG TCP when communicating over UDP-based tunnels such as VXLAN and Geneve. ([cilium/cilium#43416](cilium/cilium#43416), [@&#8203;gentoo-root](https://github.com/gentoo-root))
  - 🥌 **Packetization-Layer Path MTU Discovery**: Detect maximum transmission unit (MTU) sizes for network paths using TCP. ([cilium/cilium#42012](cilium/cilium#42012), [cilium/cilium#43710](cilium/cilium#43710), [@&#8203;tommyp1ckles](https://github.com/tommyp1ckles))
  - 🚆 **IPv6 Underlay**: You can now choose IPv6 for the tunnel underlay address family on dual-stack clusters. ([cilium/cilium#40324](cilium/cilium#40324), [@&#8203;pchaigno](https://github.com/pchaigno))
  - 🏷️ **Multi-Pool IPAM is ready for wider use**: Update the Multi-Pool IPAM feature to work with IPsec and direct routing modes, and promote it from Beta to Stable. ([cilium/cilium#40460](cilium/cilium#40460), [cilium/cilium#42191](cilium/cilium#42191), [@&#8203;pippolo84](https://github.com/pippolo84))
  - 🎭 **More Configurable Masquerade**: IP Masquerade configuration can now be customized for traffic sent to nodes in other IP subnets, and addresses in IPAM pools can be excluded from masquerade ([cilium/cilium#37568](cilium/cilium#37568), [@&#8203;behzad-mir](https://github.com/behzad-mir); [cilium/cilium#43380](cilium/cilium#43380), [@&#8203;alimehrabikoshki](https://github.com/alimehrabikoshki))

- 🕸️ **Services and Service Mesh**
  - 📣 **Layer-2 Announcements**: Add support for Neighbor Discovery Advertisements for IPv6 Layer-2 Announcements. ([cilium/cilium#39648](cilium/cilium#39648), [@&#8203;msune](https://github.com/msune))
  - 🔁 **IPv6 Service Loopback**: Pods can now connect to themselves via a Kubernetes "loopback service" using IPv6. ([cilium/cilium#39594](cilium/cilium#39594), [@&#8203;saiaunghlyanhtet](https://github.com/saiaunghlyanhtet))
  - ⛩️ **Gateway API Enhancements**: Cilium's GAMMA support now includes support for using GRPCRoute as well as HTTPRoute. ([cilium/cilium#41936](cilium/cilium#41936), [@&#8203;youngnick](https://github.com/youngnick))

- 🛣️ **Border Gateway Protocol (BGP)**
  - 🔌 **Advertise Addresses from Interfaces**: There's a new Interface BGP advertisement type that allows advertisement of IPs assigned on local interfaces. This can be useful for example in multi-homing setups, where a common node's loopback address can be advertised via multiple BGP sessions over different network interfaces. ([cilium/cilium#42469](cilium/cilium#42469), [@&#8203;rastislavs](https://github.com/rastislavs))
  - ✉️ **Override Source IP addresses**: You can override the auto-generated BGP session source IP with the IP address applied on the configured `sourceInterface` to allow binding the BGP connection to the loopback address which is not tied to the specific physical interface's lifecycle ([cilium/cilium#42583](cilium/cilium#42583), [@&#8203;rastislavs](https://github.com/rastislavs))
  - 🔁 **Withdraw Empty Routes**: Optionally withdraw BGP routes when a service has 0 endpoints, to allow balancing to a different DC/cluster with `externalTrafficPolicy=Cluster` ([cilium/cilium#40717](cilium/cilium#40717), [@&#8203;oblazek](https://github.com/oblazek))
  - ⚠️ **Move to `cilium.io/v2` API**: The support for the older `CiliumBGPPeeringPolicy` v1 API is now removed and should be replaced with v2 APIs. ([cilium/cilium#42278](cilium/cilium#42278), [@&#8203;rastislavs](https://github.com/rastislavs))

- 🛰️ **Observability**
  - 🔬 **Trace IP Options**: Configure Cilium and Hubble to trace specific packets through the cluster using IP Options. ([cilium/cilium#41306](cilium/cilium#41306), [@&#8203;Bigdelle](https://github.com/Bigdelle))
  - 🚩 **Filter Encrypted Flows**: Filter flows when using the `hubble` command line to understand the encryption status of the traffic, either `--encrypted` or `--unencrypted`. ([cilium/cilium#43096](cilium/cilium#43096), [@&#8203;SRodi](https://github.com/SRodi))
  - 🔖 **Tag Drops with Policy Names**: Hubble v1.Events drop messages now include which Network Policy caused the drop. ([cilium/cilium#41693](cilium/cilium#41693), [@&#8203;41ks](https://github.com/41ks))

- 🌅 **Performance and Scale**
  - ⚡ **Faster Network Policy Computation**: Improve Cilium resource usage for handling selectors in network policies. ([cilium/cilium#42008](cilium/cilium#42008), [@&#8203;jrajahalme](https://github.com/jrajahalme); [cilium/cilium#42580](cilium/cilium#42580), [@&#8203;odinuge](https://github.com/odinuge))
  - 🔌 **More Efficient Connection Tracking**: Several improvements have been made to reduce the number of connections being tracked by Cilium, particularly when using Geneve, VXLAN or WireGuard. ([cilium/cilium#38782](cilium/cilium#38782), [@&#8203;BenoitKnecht](https://github.com/BenoitKnecht); [cilium/cilium#41990](cilium/cilium#41990), [@&#8203;bersoare](https://github.com/bersoare))
  - 💾 **Better Scale in AWS**: Reduce memory usage for cilium-operator in large AWS environments with many resources. ([cilium/cilium#42529](cilium/cilium#42529), [@&#8203;liyihuang](https://github.com/liyihuang))

- ⚙️ **Operations**
  - 📦 **Access Helm charts via Registry**: Helm charts are also available under `quay.io/cilium/charts/cilium` ([cilium/cilium#43624](cilium/cilium#43624), [@&#8203;aanm](https://github.com/aanm))
  - 📊 **Metrics Encryption**: Add TLS/mTLS support for Prometheus metrics exposed by the Cilium Operator. ([cilium/cilium#42077](cilium/cilium#42077), [@&#8203;phuhung273](https://github.com/phuhung273))
  - 🤖 **Easier Multi-Cluster install**: There's now support for auto-installing the Custom Resource Definitions (CRDs) for Multi-Cluster  Services (MCS). ([cilium/cilium#40729](cilium/cilium#40729), [@&#8203;MrFreezeex](https://github.com/MrFreezeex))
  - 📜 **Simpler Certificate Management**: Streamline Cluster Mesh and Hubble certificate generation when using GitOps approaches. ([cilium/cilium#42298](cilium/cilium#42298), [@&#8203;MrFreezeex](https://github.com/MrFreezeex))
  - 🛠️ **Cilium dependencies** were updated to Kubernetes v1.35, Envoy v1.35, Gateway API v1.4, and GoBGP v3.37. ([cilium/cilium#43422](cilium/cilium#43422), [@&#8203;aanm](https://github.com/aanm); [cilium/cilium#40569](cilium/cilium#40569), [@&#8203;sayboras](https://github.com/sayboras); [cilium/cilium#41936](cilium/cilium#41936), [@&#8203;youngnick](https://github.com/youngnick); [cilium/cilium#42824](cilium/cilium#42824), [@&#8203;rastislavs](https://github.com/rastislavs)).

- 🏠 **Community**
  - ❤️ **Production Case Studies**: Many end-users have stepped forward to tell their stories running Cilium in production. If your company wants to submit their case studies let us know. We would love to hear your feedback!
  - 📰 See studies with [Airbnb](https://youtu.be/7KHenRXNGAw?si=ldTS-X_W0svxo429\&t=546), [Cloudera](https://aws.amazon.com/blogs/migration-and-modernization/scaling-clouderas-development-environment-leveraging-amazon-eks-karpenter-bottlerocket-and-cilium-for-hybrid-cloud/),[ Cybozu](https://www.cncf.io/case-studies/cybozu/), [ESnet](https://www.cncf.io/case-studies/esnet/),[ Nutanix](https://www.cncf.io/case-studies/nutanix/), [OVHcloud](https://corporate.ovhcloud.com/en-gb/newsroom/news/ovhcloud-managed-kubernetes-service-standard-3az/), [TikTok](https://www.youtube.com/watch?v=y0qlhiKtDGo), [University of Wisconsin–Madison](https://www.cncf.io/case-studies/university-of-wisconsin-madison/).
  - 🇺🇸 **Atlanta Events**: The community gathered at [CiliumCon](https://www.youtube.com/playlist?list=PLDg_GiBbAx-mOnWuzd_NXoRfuW9HZAxeZ) and the [Cilium Developer Summit](https://github.com/cilium/dev-summits/blob/main/2025-NA/README.md) in Atlanta.
  - 🇳🇱 **Amsterdam Events**: Meet us at the upcoming [CiliumCon](https://events.linuxfoundation.org/kubecon-cloudnativecon-europe/co-located-events/ciliumcon/) and [Cilium Developer Summit](https://github.com/cilium/dev-summits/tree/main/2026-EU) in Amsterdam, March 23-27. [Read more](https://cilium.io/blog/2026/01/23/cilium-at-kubecon-eu-2026/) about where to find Cilium during the show.
  - 🔟 **Cilium is 10**: Read the [2025 Cilium Annual Report](https://www.cncf.io/wp-content/uploads/2025/12/cilium-annual-report-2025-final.pdf) to see the latest project milestones, a decade on from its first commit.

To keep up to date with all the latest Cilium releases, join #release 🎉

:birthday::heart::heart::heart::birthday:
This is a very special release for Cilium, as it celebrates **10 years** since the first commit. We couldn’t be more proud of what this project has accomplished. All the GitHub issues, pull requests, reviews, stars, forks, Docker pulls, Helm installs, Kubernetes applies, CI runs, bug reports, design docs, discussions, meetings, Slack messages, YouTube streams, eCHO episodes, conference talks, blog posts, demos, and presentations have made the project the success it is today.
:birthday::heart::heart::heart::birthday:

#### Docker Manifests

##### cilium

`quay.io/cilium/cilium:v1.19.0@&#8203;sha256:be9f8571c2e114b3e12e41f785f2356ade703b2eac936aa878805565f0468c60`

##### clustermesh-apiserver

`quay.io/cilium/clustermesh-apiserver:v1.19.0@&#8203;sha256:0e3b89fdb116eb0f5579fe8ee3fabb1a7c4d97987a1ae927491d9185785d4a49`

##### docker-plugin

`quay.io/cilium/docker-plugin:v1.19.0@&#8203;sha256:35727047384f3d7a2684885003b266bf7a7add8fc66ca564b222f71c16057f50`

##### hubble-relay

`quay.io/cilium/hubble-relay:v1.19.0@&#8203;sha256:7f17e5bb51a9f35bbc8e7a9ad5e347f03ff8003c2e5cc81171e8727a10bf03b4`

##### operator-alibabacloud

`quay.io/cilium/operator-alibabacloud:v1.19.0@&#8203;sha256:5cb3d6981c233616037f3e13b5bc0020d114ad8db1b7360618b224e4c0b02ef0`

##### operator-aws

`quay.io/cilium/operator-aws:v1.19.0@&#8203;sha256:7a236ae256a4fbd3f72d516921131eba5b43f401ba37cdee5cd0e8c26f9263e6`

##### operator-azure

`quay.io/cilium/operator-azure:v1.19.0@&#8203;sha256:6ae7e0d75c74836af3600b775201c89ea7fcc13d6e08fdb0c52927309f31cd2a`

##### operator-generic

`quay.io/cilium/operator-generic:v1.19.0@&#8203;sha256:5b04006015e5800307dc6314676edc4c0bb7ac2fc7848be2b94b43bb030ab648`

##### operator

`quay.io/cilium/operator:v1.19.0@&#8203;sha256:deca84f442752dca0745dd09b13e8004569414839019ad79ac58f9fcaa3b9d65`

</details>

---

### 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 is behind base branch, or you tick the rebase/retry checkbox.

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

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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Reviewed-on: https://gitea.alexlebens.dev/alexlebens/infrastructure/pulls/3715
Co-authored-by: Renovate Bot <[email protected]>
Co-committed-by: Renovate Bot <[email protected]>
lumiere-bot bot added a commit to coolguy1771/home-ops that referenced this pull request Feb 6, 2026
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [cilium](https://cilium.io/)
([source](https://redirect.github.com/cilium/cilium)) | HelmChart |
minor | `1.18.6` → `1.19.0` |

---

### Release Notes

<details>
<summary>cilium/cilium (cilium)</summary>

###
[`v1.19.0`](https://redirect.github.com/cilium/cilium/releases/tag/v1.19.0):
1.19.0

[Compare
Source](https://redirect.github.com/cilium/cilium/compare/1.18.6...1.19.0)

🎉 **Release Announcement** 🎉: We are excited to announce the [Cilium
1.19.0](https://redirect.github.com/cilium/cilium/releases/tag/v1.19.0)
release!

A total of **2934 new commits** have been contributed to this release by
a growing community of over **1010 developers** and over **23,600 GitHub
stars**! 🤩

⚠️ You may need to take action during upgrade to Cilium v1.19 if you use
Network Policies, Cluster Mesh, LoadBalancer IPAM or BGP. See the
[Upgrade
Guide](https://docs.cilium.io/en/v1.19/operations/upgrade/#upgrade-notes)
for more details.

The full changelog can be found
[here](https://redirect.github.com/cilium/cilium/blob/v1.19/CHANGELOG.md).

Here are some of the highlights:

- 🛡️ **Network Policy**
- 🃏 **Multi-Level DNS Matches**: DNS Policies match pattern now support
a wildcard prefix(*`**.`*) to match multilevel subdomain as pattern
prefix.
([cilium/cilium#43420](https://redirect.github.com/cilium/cilium/pull/43420),
[@&#8203;fristonio](https://redirect.github.com/fristonio))
- 📡 **Match New Protocols**: You can now match VRRP and IGMP protocols
in host firewall rules.
([cilium/cilium#39872](https://redirect.github.com/cilium/cilium/pull/39872),
[@&#8203;aditighag](https://redirect.github.com/aditighag);
[cilium/cilium#41949](https://redirect.github.com/cilium/cilium/pull/41949),
[@&#8203;kyounghunJang](https://redirect.github.com/kyounghunJang))
- ⛔ **Actively Deny Connections**: When Network Policies deny a
connection, Cilium can return ICMPv4 "Destination unreachable" messages
for a friendlier deny.
([cilium/cilium#41406](https://redirect.github.com/cilium/cilium/pull/41406),
[@&#8203;antonipp](https://redirect.github.com/antonipp))
- 🌐 **Select Clusters Explicitly**: When network policy selectors don't
explicitly define a cluster for communication to be allowed, they will
now default to only allowing the local cluster.
([cilium/cilium#40609](https://redirect.github.com/cilium/cilium/pull/40609),
[@&#8203;MrFreezeex](https://redirect.github.com/MrFreezeex))
- 🔧 **Unlock Future Work**: This release brings several internal
improvements to the network policy engine in preparation for features
planned in the next Cilium minor release
([cilium/cilium#39906](https://redirect.github.com/cilium/cilium/pull/39906),
[@&#8203;vipul-21](https://redirect.github.com/vipul-21);
[cilium/cilium#42784](https://redirect.github.com/cilium/cilium/pull/42784),
[cilium/cilium#42896](https://redirect.github.com/cilium/cilium/pull/42896),
[@&#8203;jrajahalme](https://redirect.github.com/jrajahalme))
- ⚠️ **Deprecate underutilized features**: To focus on solving common
problems Cilium users face, this release deprecates the Kafka protocol
match fields (beta), as well as the `ToRequires` and `FromRequires`
policy fields.
([cilium/cilium#43167](https://redirect.github.com/cilium/cilium/pull/43167),
[@&#8203;sayboras](https://redirect.github.com/sayboras);
[cilium/cilium#40967](https://redirect.github.com/cilium/cilium/pull/40967),
[@&#8203;TheBeeZee](https://redirect.github.com/TheBeeZee))

- 🔒 **Encryption & Authentication**
- 🔐 **Encryption Strict Modes**: Both IPsec and WireGuard transparent
encryption modes now support a "strict mode" to require traffic to be
encrypted between nodes. Unencrypted traffic will be dropped in this
mode.
([cilium/cilium#39239](https://redirect.github.com/cilium/cilium/pull/39239),
[cilium/cilium#42115](https://redirect.github.com/cilium/cilium/pull/42115),
[@&#8203;rgo3](https://redirect.github.com/rgo3),
[@&#8203;julianwiedmann](https://redirect.github.com/julianwiedmann))
- 🚇 **Ztunnel Beta**: You can enroll namespaces into Ztunnel, which
enables TCP connections between workloads to be transparently encrypted
and authenticated.
([cilium/cilium#42766](https://redirect.github.com/cilium/cilium/pull/42766),
[cilium/cilium#42819](https://redirect.github.com/cilium/cilium/pull/42819),
[cilium/cilium#43227](https://redirect.github.com/cilium/cilium/pull/43227)
and others, [@&#8203;ldelossa](https://redirect.github.com/ldelossa),
[@&#8203;rgo3](https://redirect.github.com/rgo3),
[@&#8203;nddq](https://redirect.github.com/nddq))
- 👥 **Mutual Authentication**: The out-of-band [Mutual
Authentication](https://docs.cilium.io/en/v1.19/network/servicemesh/mutual-authentication/mutual-authentication/)
feature is now disabled by default, pending community feedback. If you
have a requirement for mTLS, consider trying the new Ztunnel
integration.
([cilium/cilium#42665](https://redirect.github.com/cilium/cilium/pull/42665),
[@&#8203;christarazi](https://redirect.github.com/christarazi))
- ↪️ **Accelerate IPsec**: The IPsec encryption mode now supports BPF
Host Routing for faster route lookups
([cilium/cilium#41997](https://redirect.github.com/cilium/cilium/pull/41997),
[@&#8203;pchaigno](https://redirect.github.com/pchaigno))

- 🚠 **Networking**
- 🚀 **BIG TCP in Tunnels**: Leverage upcoming Linux support for BIG TCP
when communicating over UDP-based tunnels such as VXLAN and Geneve.
([cilium/cilium#43416](https://redirect.github.com/cilium/cilium/pull/43416),
[@&#8203;gentoo-root](https://redirect.github.com/gentoo-root))
- 🥌 **Packetization-Layer Path MTU Discovery**: Detect maximum
transmission unit (MTU) sizes for network paths using TCP.
([cilium/cilium#42012](https://redirect.github.com/cilium/cilium/pull/42012),
[cilium/cilium#43710](https://redirect.github.com/cilium/cilium/pull/43710),
[@&#8203;tommyp1ckles](https://redirect.github.com/tommyp1ckles))
- 🚆 **IPv6 Underlay**: You can now choose IPv6 for the tunnel underlay
address family on dual-stack clusters.
([cilium/cilium#40324](https://redirect.github.com/cilium/cilium/pull/40324),
[@&#8203;pchaigno](https://redirect.github.com/pchaigno))
- 🏷️ **Multi-Pool IPAM is ready for wider use**: Update the Multi-Pool
IPAM feature to work with IPsec and direct routing modes, and promote it
from Beta to Stable.
([cilium/cilium#40460](https://redirect.github.com/cilium/cilium/pull/40460),
[cilium/cilium#42191](https://redirect.github.com/cilium/cilium/pull/42191),
[@&#8203;pippolo84](https://redirect.github.com/pippolo84))
- 🎭 **More Configurable Masquerade**: IP Masquerade configuration can
now be customized for traffic sent to nodes in other IP subnets, and
addresses in IPAM pools can be excluded from masquerade
([cilium/cilium#37568](https://redirect.github.com/cilium/cilium/pull/37568),
[@&#8203;behzad-mir](https://redirect.github.com/behzad-mir);
[cilium/cilium#43380](https://redirect.github.com/cilium/cilium/pull/43380),
[@&#8203;alimehrabikoshki](https://redirect.github.com/alimehrabikoshki))

- 🕸️ **Services and Service Mesh**
- 📣 **Layer-2 Announcements**: Add support for Neighbor Discovery
Advertisements for IPv6 Layer-2 Announcements.
([cilium/cilium#39648](https://redirect.github.com/cilium/cilium/pull/39648),
[@&#8203;msune](https://redirect.github.com/msune))
- 🔁 **IPv6 Service Loopback**: Pods can now connect to themselves via a
Kubernetes "loopback service" using IPv6.
([cilium/cilium#39594](https://redirect.github.com/cilium/cilium/pull/39594),
[@&#8203;saiaunghlyanhtet](https://redirect.github.com/saiaunghlyanhtet))
- ⛩️ **Gateway API Enhancements**: Cilium's GAMMA support now includes
support for using GRPCRoute as well as HTTPRoute.
([cilium/cilium#41936](https://redirect.github.com/cilium/cilium/pull/41936),
[@&#8203;youngnick](https://redirect.github.com/youngnick))

- 🛣️ **Border Gateway Protocol (BGP)**
- 🔌 **Advertise Addresses from Interfaces**: There's a new Interface BGP
advertisement type that allows advertisement of IPs assigned on local
interfaces. This can be useful for example in multi-homing setups, where
a common node's loopback address can be advertised via multiple BGP
sessions over different network interfaces.
([cilium/cilium#42469](https://redirect.github.com/cilium/cilium/pull/42469),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs))
- ✉️ **Override Source IP addresses**: You can override the
auto-generated BGP session source IP with the IP address applied on the
configured `sourceInterface` to allow binding the BGP connection to the
loopback address which is not tied to the specific physical interface's
lifecycle
([cilium/cilium#42583](https://redirect.github.com/cilium/cilium/pull/42583),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs))
- 🔁 **Withdraw Empty Routes**: Optionally withdraw BGP routes when a
service has 0 endpoints, to allow balancing to a different DC/cluster
with `externalTrafficPolicy=Cluster`
([cilium/cilium#40717](https://redirect.github.com/cilium/cilium/pull/40717),
[@&#8203;oblazek](https://redirect.github.com/oblazek))
- ⚠️ **Move to `cilium.io/v2` API**: The support for the older
`CiliumBGPPeeringPolicy` v1 API is now removed and should be replaced
with v2 APIs.
([cilium/cilium#42278](https://redirect.github.com/cilium/cilium/pull/42278),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs))

- 🛰️ **Observability**
- 🔬 **Trace IP Options**: Configure Cilium and Hubble to trace specific
packets through the cluster using IP Options.
([cilium/cilium#41306](https://redirect.github.com/cilium/cilium/pull/41306),
[@&#8203;Bigdelle](https://redirect.github.com/Bigdelle))
- 🚩 **Filter Encrypted Flows**: Filter flows when using the `hubble`
command line to understand the encryption status of the traffic, either
`--encrypted` or `--unencrypted`.
([cilium/cilium#43096](https://redirect.github.com/cilium/cilium/pull/43096),
[@&#8203;SRodi](https://redirect.github.com/SRodi))
- 🔖 **Tag Drops with Policy Names**: Hubble v1.Events drop messages now
include which Network Policy caused the drop.
([cilium/cilium#41693](https://redirect.github.com/cilium/cilium/pull/41693),
[@&#8203;41ks](https://redirect.github.com/41ks))

- 🌅 **Performance and Scale**
- ⚡ **Faster Network Policy Computation**: Improve Cilium resource usage
for handling selectors in network policies.
([cilium/cilium#42008](https://redirect.github.com/cilium/cilium/pull/42008),
[@&#8203;jrajahalme](https://redirect.github.com/jrajahalme);
[cilium/cilium#42580](https://redirect.github.com/cilium/cilium/pull/42580),
[@&#8203;odinuge](https://redirect.github.com/odinuge))
- 🔌 **More Efficient Connection Tracking**: Several improvements have
been made to reduce the number of connections being tracked by Cilium,
particularly when using Geneve, VXLAN or WireGuard.
([cilium/cilium#38782](https://redirect.github.com/cilium/cilium/pull/38782),
[@&#8203;BenoitKnecht](https://redirect.github.com/BenoitKnecht);
[cilium/cilium#41990](https://redirect.github.com/cilium/cilium/pull/41990),
[@&#8203;bersoare](https://redirect.github.com/bersoare))
- 💾 **Better Scale in AWS**: Reduce memory usage for cilium-operator in
large AWS environments with many resources.
([cilium/cilium#42529](https://redirect.github.com/cilium/cilium/pull/42529),
[@&#8203;liyihuang](https://redirect.github.com/liyihuang))

- ⚙️ **Operations**
- 📦 **Access Helm charts via Registry**: Helm charts are also available
under `quay.io/cilium/charts/cilium`
([cilium/cilium#43624](https://redirect.github.com/cilium/cilium/pull/43624),
[@&#8203;aanm](https://redirect.github.com/aanm))
- 📊 **Metrics Encryption**: Add TLS/mTLS support for Prometheus metrics
exposed by the Cilium Operator.
([cilium/cilium#42077](https://redirect.github.com/cilium/cilium/pull/42077),
[@&#8203;phuhung273](https://redirect.github.com/phuhung273))
- 🤖 **Easier Multi-Cluster install**: There's now support for
auto-installing the Custom Resource Definitions (CRDs) for Multi-Cluster
Services (MCS).
([cilium/cilium#40729](https://redirect.github.com/cilium/cilium/pull/40729),
[@&#8203;MrFreezeex](https://redirect.github.com/MrFreezeex))
- 📜 **Simpler Certificate Management**: Streamline Cluster Mesh and
Hubble certificate generation when using GitOps approaches.
([cilium/cilium#42298](https://redirect.github.com/cilium/cilium/pull/42298),
[@&#8203;MrFreezeex](https://redirect.github.com/MrFreezeex))
- 🛠️ **Cilium dependencies** were updated to Kubernetes v1.35, Envoy
v1.35, Gateway API v1.4, and GoBGP v3.37.
([cilium/cilium#43422](https://redirect.github.com/cilium/cilium/pull/43422),
[@&#8203;aanm](https://redirect.github.com/aanm);
[cilium/cilium#40569](https://redirect.github.com/cilium/cilium/pull/40569),
[@&#8203;sayboras](https://redirect.github.com/sayboras);
[cilium/cilium#41936](https://redirect.github.com/cilium/cilium/pull/41936),
[@&#8203;youngnick](https://redirect.github.com/youngnick);
[cilium/cilium#42824](https://redirect.github.com/cilium/cilium/pull/42824),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs)).

- 🏠 **Community**
- ❤️ **Production Case Studies**: Many end-users have stepped forward to
tell their stories running Cilium in production. If your company wants
to submit their case studies let us know. We would love to hear your
feedback!
- 📰 See studies with
[Airbnb](https://youtu.be/7KHenRXNGAw?si=ldTS-X_W0svxo429\&t=546),
[Cloudera](https://aws.amazon.com/blogs/migration-and-modernization/scaling-clouderas-development-environment-leveraging-amazon-eks-karpenter-bottlerocket-and-cilium-for-hybrid-cloud/),[
Cybozu](https://www.cncf.io/case-studies/cybozu/),
[ESnet](https://www.cncf.io/case-studies/esnet/),[
Nutanix](https://www.cncf.io/case-studies/nutanix/),
[OVHcloud](https://corporate.ovhcloud.com/en-gb/newsroom/news/ovhcloud-managed-kubernetes-service-standard-3az/),
[TikTok](https://www.youtube.com/watch?v=y0qlhiKtDGo), [University of
Wisconsin–Madison](https://www.cncf.io/case-studies/university-of-wisconsin-madison/).
- 🇺🇸 **Atlanta Events**: The community gathered at
[CiliumCon](https://www.youtube.com/playlist?list=PLDg_GiBbAx-mOnWuzd_NXoRfuW9HZAxeZ)
and the [Cilium Developer
Summit](https://redirect.github.com/cilium/dev-summits/blob/main/2025-NA/README.md)
in Atlanta.
- 🇳🇱 **Amsterdam Events**: Meet us at the upcoming
[CiliumCon](https://events.linuxfoundation.org/kubecon-cloudnativecon-europe/co-located-events/ciliumcon/)
and [Cilium Developer
Summit](https://redirect.github.com/cilium/dev-summits/tree/main/2026-EU)
in Amsterdam, March 23-27. [Read
more](https://cilium.io/blog/2026/01/23/cilium-at-kubecon-eu-2026/)
about where to find Cilium during the show.
- 🔟 **Cilium is 10**: Read the [2025 Cilium Annual
Report](https://www.cncf.io/wp-content/uploads/2025/12/cilium-annual-report-2025-final.pdf)
to see the latest project milestones, a decade on from its first commit.

To keep up to date with all the latest Cilium releases, join #release 🎉

:birthday::heart::heart::heart::birthday:
This is a very special release for Cilium, as it celebrates **10 years**
since the first commit. We couldn’t be more proud of what this project
has accomplished. All the GitHub issues, pull requests, reviews, stars,
forks, Docker pulls, Helm installs, Kubernetes applies, CI runs, bug
reports, design docs, discussions, meetings, Slack messages, YouTube
streams, eCHO episodes, conference talks, blog posts, demos, and
presentations have made the project the success it is today.
:birthday::heart::heart::heart::birthday:

#### Docker Manifests

##### cilium


`quay.io/cilium/cilium:v1.19.0@&#8203;sha256:be9f8571c2e114b3e12e41f785f2356ade703b2eac936aa878805565f0468c60`

##### clustermesh-apiserver


`quay.io/cilium/clustermesh-apiserver:v1.19.0@&#8203;sha256:0e3b89fdb116eb0f5579fe8ee3fabb1a7c4d97987a1ae927491d9185785d4a49`

##### docker-plugin


`quay.io/cilium/docker-plugin:v1.19.0@&#8203;sha256:35727047384f3d7a2684885003b266bf7a7add8fc66ca564b222f71c16057f50`

##### hubble-relay


`quay.io/cilium/hubble-relay:v1.19.0@&#8203;sha256:7f17e5bb51a9f35bbc8e7a9ad5e347f03ff8003c2e5cc81171e8727a10bf03b4`

##### operator-alibabacloud


`quay.io/cilium/operator-alibabacloud:v1.19.0@&#8203;sha256:5cb3d6981c233616037f3e13b5bc0020d114ad8db1b7360618b224e4c0b02ef0`

##### operator-aws


`quay.io/cilium/operator-aws:v1.19.0@&#8203;sha256:7a236ae256a4fbd3f72d516921131eba5b43f401ba37cdee5cd0e8c26f9263e6`

##### operator-azure


`quay.io/cilium/operator-azure:v1.19.0@&#8203;sha256:6ae7e0d75c74836af3600b775201c89ea7fcc13d6e08fdb0c52927309f31cd2a`

##### operator-generic


`quay.io/cilium/operator-generic:v1.19.0@&#8203;sha256:5b04006015e5800307dc6314676edc4c0bb7ac2fc7848be2b94b43bb030ab648`

##### operator


`quay.io/cilium/operator:v1.19.0@&#8203;sha256:deca84f442752dca0745dd09b13e8004569414839019ad79ac58f9fcaa3b9d65`

</details>

---

### 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 this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yLjYiLCJ1cGRhdGVkSW5WZXIiOiI0My4zLjQiLCJ0YXJnZXRCcmFuY2giOiJtYWluIiwibGFiZWxzIjpbInJlbm92YXRlL2hlbG0iLCJ0eXBlL21pbm9yIl19-->

Co-authored-by: lumiere-bot[bot] <98047013+lumiere-bot[bot]@users.noreply.github.com>
nicolerenee pushed a commit to nicolerenee/infra that referenced this pull request Feb 7, 2026
This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [cilium](https://cilium.io/)
([source](https://redirect.github.com/cilium/cilium)) | minor | `1.18.6`
→ `1.19.0` |

---

### Release Notes

<details>
<summary>cilium/cilium (cilium)</summary>

###
[`v1.19.0`](https://redirect.github.com/cilium/cilium/releases/tag/v1.19.0):
1.19.0

[Compare
Source](https://redirect.github.com/cilium/cilium/compare/1.18.6...1.19.0)

🎉 **Release Announcement** 🎉: We are excited to announce the [Cilium
1.19.0](https://redirect.github.com/cilium/cilium/releases/tag/v1.19.0)
release!

A total of **2934 new commits** have been contributed to this release by
a growing community of over **1010 developers** and over **23,600 GitHub
stars**! 🤩

⚠️ You may need to take action during upgrade to Cilium v1.19 if you use
Network Policies, Cluster Mesh, LoadBalancer IPAM or BGP. See the
[Upgrade
Guide](https://docs.cilium.io/en/v1.19/operations/upgrade/#upgrade-notes)
for more details.

The full changelog can be found
[here](https://redirect.github.com/cilium/cilium/blob/v1.19/CHANGELOG.md).

Here are some of the highlights:

- 🛡️ **Network Policy**
- 🃏 **Multi-Level DNS Matches**: DNS Policies match pattern now support
a wildcard prefix(*`**.`*) to match multilevel subdomain as pattern
prefix.
([cilium/cilium#43420](https://redirect.github.com/cilium/cilium/pull/43420),
[@&#8203;fristonio](https://redirect.github.com/fristonio))
- 📡 **Match New Protocols**: You can now match VRRP and IGMP protocols
in host firewall rules.
([cilium/cilium#39872](https://redirect.github.com/cilium/cilium/pull/39872),
[@&#8203;aditighag](https://redirect.github.com/aditighag);
[cilium/cilium#41949](https://redirect.github.com/cilium/cilium/pull/41949),
[@&#8203;kyounghunJang](https://redirect.github.com/kyounghunJang))
- ⛔ **Actively Deny Connections**: When Network Policies deny a
connection, Cilium can return ICMPv4 "Destination unreachable" messages
for a friendlier deny.
([cilium/cilium#41406](https://redirect.github.com/cilium/cilium/pull/41406),
[@&#8203;antonipp](https://redirect.github.com/antonipp))
- 🌐 **Select Clusters Explicitly**: When network policy selectors don't
explicitly define a cluster for communication to be allowed, they will
now default to only allowing the local cluster.
([cilium/cilium#40609](https://redirect.github.com/cilium/cilium/pull/40609),
[@&#8203;MrFreezeex](https://redirect.github.com/MrFreezeex))
- 🔧 **Unlock Future Work**: This release brings several internal
improvements to the network policy engine in preparation for features
planned in the next Cilium minor release
([cilium/cilium#39906](https://redirect.github.com/cilium/cilium/pull/39906),
[@&#8203;vipul-21](https://redirect.github.com/vipul-21);
[cilium/cilium#42784](https://redirect.github.com/cilium/cilium/pull/42784),
[cilium/cilium#42896](https://redirect.github.com/cilium/cilium/pull/42896),
[@&#8203;jrajahalme](https://redirect.github.com/jrajahalme))
- ⚠️ **Deprecate underutilized features**: To focus on solving common
problems Cilium users face, this release deprecates the Kafka protocol
match fields (beta), as well as the `ToRequires` and `FromRequires`
policy fields.
([cilium/cilium#43167](https://redirect.github.com/cilium/cilium/pull/43167),
[@&#8203;sayboras](https://redirect.github.com/sayboras);
[cilium/cilium#40967](https://redirect.github.com/cilium/cilium/pull/40967),
[@&#8203;TheBeeZee](https://redirect.github.com/TheBeeZee))

- 🔒 **Encryption & Authentication**
- 🔐 **Encryption Strict Modes**: Both IPsec and WireGuard transparent
encryption modes now support a "strict mode" to require traffic to be
encrypted between nodes. Unencrypted traffic will be dropped in this
mode.
([cilium/cilium#39239](https://redirect.github.com/cilium/cilium/pull/39239),
[cilium/cilium#42115](https://redirect.github.com/cilium/cilium/pull/42115),
[@&#8203;rgo3](https://redirect.github.com/rgo3),
[@&#8203;julianwiedmann](https://redirect.github.com/julianwiedmann))
- 🚇 **Ztunnel Beta**: You can enroll namespaces into Ztunnel, which
enables TCP connections between workloads to be transparently encrypted
and authenticated.
([cilium/cilium#42766](https://redirect.github.com/cilium/cilium/pull/42766),
[cilium/cilium#42819](https://redirect.github.com/cilium/cilium/pull/42819),
[cilium/cilium#43227](https://redirect.github.com/cilium/cilium/pull/43227)
and others, [@&#8203;ldelossa](https://redirect.github.com/ldelossa),
[@&#8203;rgo3](https://redirect.github.com/rgo3),
[@&#8203;nddq](https://redirect.github.com/nddq))
- 👥 **Mutual Authentication**: The out-of-band [Mutual
Authentication](https://docs.cilium.io/en/v1.19/network/servicemesh/mutual-authentication/mutual-authentication/)
feature is now disabled by default, pending community feedback. If you
have a requirement for mTLS, consider trying the new Ztunnel
integration.
([cilium/cilium#42665](https://redirect.github.com/cilium/cilium/pull/42665),
[@&#8203;christarazi](https://redirect.github.com/christarazi))
- ↪️ **Accelerate IPsec**: The IPsec encryption mode now supports BPF
Host Routing for faster route lookups
([cilium/cilium#41997](https://redirect.github.com/cilium/cilium/pull/41997),
[@&#8203;pchaigno](https://redirect.github.com/pchaigno))

- 🚠 **Networking**
- 🚀 **BIG TCP in Tunnels**: Leverage upcoming Linux support for BIG TCP
when communicating over UDP-based tunnels such as VXLAN and Geneve.
([cilium/cilium#43416](https://redirect.github.com/cilium/cilium/pull/43416),
[@&#8203;gentoo-root](https://redirect.github.com/gentoo-root))
- 🥌 **Packetization-Layer Path MTU Discovery**: Detect maximum
transmission unit (MTU) sizes for network paths using TCP.
([cilium/cilium#42012](https://redirect.github.com/cilium/cilium/pull/42012),
[cilium/cilium#43710](https://redirect.github.com/cilium/cilium/pull/43710),
[@&#8203;tommyp1ckles](https://redirect.github.com/tommyp1ckles))
- 🚆 **IPv6 Underlay**: You can now choose IPv6 for the tunnel underlay
address family on dual-stack clusters.
([cilium/cilium#40324](https://redirect.github.com/cilium/cilium/pull/40324),
[@&#8203;pchaigno](https://redirect.github.com/pchaigno))
- 🏷️ **Multi-Pool IPAM is ready for wider use**: Update the Multi-Pool
IPAM feature to work with IPsec and direct routing modes, and promote it
from Beta to Stable.
([cilium/cilium#40460](https://redirect.github.com/cilium/cilium/pull/40460),
[cilium/cilium#42191](https://redirect.github.com/cilium/cilium/pull/42191),
[@&#8203;pippolo84](https://redirect.github.com/pippolo84))
- 🎭 **More Configurable Masquerade**: IP Masquerade configuration can
now be customized for traffic sent to nodes in other IP subnets, and
addresses in IPAM pools can be excluded from masquerade
([cilium/cilium#37568](https://redirect.github.com/cilium/cilium/pull/37568),
[@&#8203;behzad-mir](https://redirect.github.com/behzad-mir);
[cilium/cilium#43380](https://redirect.github.com/cilium/cilium/pull/43380),
[@&#8203;alimehrabikoshki](https://redirect.github.com/alimehrabikoshki))

- 🕸️ **Services and Service Mesh**
- 📣 **Layer-2 Announcements**: Add support for Neighbor Discovery
Advertisements for IPv6 Layer-2 Announcements.
([cilium/cilium#39648](https://redirect.github.com/cilium/cilium/pull/39648),
[@&#8203;msune](https://redirect.github.com/msune))
- 🔁 **IPv6 Service Loopback**: Pods can now connect to themselves via a
Kubernetes "loopback service" using IPv6.
([cilium/cilium#39594](https://redirect.github.com/cilium/cilium/pull/39594),
[@&#8203;saiaunghlyanhtet](https://redirect.github.com/saiaunghlyanhtet))
- ⛩️ **Gateway API Enhancements**: Cilium's GAMMA support now includes
support for using GRPCRoute as well as HTTPRoute.
([cilium/cilium#41936](https://redirect.github.com/cilium/cilium/pull/41936),
[@&#8203;youngnick](https://redirect.github.com/youngnick))

- 🛣️ **Border Gateway Protocol (BGP)**
- 🔌 **Advertise Addresses from Interfaces**: There's a new Interface BGP
advertisement type that allows advertisement of IPs assigned on local
interfaces. This can be useful for example in multi-homing setups, where
a common node's loopback address can be advertised via multiple BGP
sessions over different network interfaces.
([cilium/cilium#42469](https://redirect.github.com/cilium/cilium/pull/42469),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs))
- ✉️ **Override Source IP addresses**: You can override the
auto-generated BGP session source IP with the IP address applied on the
configured `sourceInterface` to allow binding the BGP connection to the
loopback address which is not tied to the specific physical interface's
lifecycle
([cilium/cilium#42583](https://redirect.github.com/cilium/cilium/pull/42583),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs))
- 🔁 **Withdraw Empty Routes**: Optionally withdraw BGP routes when a
service has 0 endpoints, to allow balancing to a different DC/cluster
with `externalTrafficPolicy=Cluster`
([cilium/cilium#40717](https://redirect.github.com/cilium/cilium/pull/40717),
[@&#8203;oblazek](https://redirect.github.com/oblazek))
- ⚠️ **Move to `cilium.io/v2` API**: The support for the older
`CiliumBGPPeeringPolicy` v1 API is now removed and should be replaced
with v2 APIs.
([cilium/cilium#42278](https://redirect.github.com/cilium/cilium/pull/42278),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs))

- 🛰️ **Observability**
- 🔬 **Trace IP Options**: Configure Cilium and Hubble to trace specific
packets through the cluster using IP Options.
([cilium/cilium#41306](https://redirect.github.com/cilium/cilium/pull/41306),
[@&#8203;Bigdelle](https://redirect.github.com/Bigdelle))
- 🚩 **Filter Encrypted Flows**: Filter flows when using the `hubble`
command line to understand the encryption status of the traffic, either
`--encrypted` or `--unencrypted`.
([cilium/cilium#43096](https://redirect.github.com/cilium/cilium/pull/43096),
[@&#8203;SRodi](https://redirect.github.com/SRodi))
- 🔖 **Tag Drops with Policy Names**: Hubble v1.Events drop messages now
include which Network Policy caused the drop.
([cilium/cilium#41693](https://redirect.github.com/cilium/cilium/pull/41693),
[@&#8203;41ks](https://redirect.github.com/41ks))

- 🌅 **Performance and Scale**
- ⚡ **Faster Network Policy Computation**: Improve Cilium resource usage
for handling selectors in network policies.
([cilium/cilium#42008](https://redirect.github.com/cilium/cilium/pull/42008),
[@&#8203;jrajahalme](https://redirect.github.com/jrajahalme);
[cilium/cilium#42580](https://redirect.github.com/cilium/cilium/pull/42580),
[@&#8203;odinuge](https://redirect.github.com/odinuge))
- 🔌 **More Efficient Connection Tracking**: Several improvements have
been made to reduce the number of connections being tracked by Cilium,
particularly when using Geneve, VXLAN or WireGuard.
([cilium/cilium#38782](https://redirect.github.com/cilium/cilium/pull/38782),
[@&#8203;BenoitKnecht](https://redirect.github.com/BenoitKnecht);
[cilium/cilium#41990](https://redirect.github.com/cilium/cilium/pull/41990),
[@&#8203;bersoare](https://redirect.github.com/bersoare))
- 💾 **Better Scale in AWS**: Reduce memory usage for cilium-operator in
large AWS environments with many resources.
([cilium/cilium#42529](https://redirect.github.com/cilium/cilium/pull/42529),
[@&#8203;liyihuang](https://redirect.github.com/liyihuang))

- ⚙️ **Operations**
- 📦 **Access Helm charts via Registry**: Helm charts are also available
under `quay.io/cilium/charts/cilium`
([cilium/cilium#43624](https://redirect.github.com/cilium/cilium/pull/43624),
[@&#8203;aanm](https://redirect.github.com/aanm))
- 📊 **Metrics Encryption**: Add TLS/mTLS support for Prometheus metrics
exposed by the Cilium Operator.
([cilium/cilium#42077](https://redirect.github.com/cilium/cilium/pull/42077),
[@&#8203;phuhung273](https://redirect.github.com/phuhung273))
- 🤖 **Easier Multi-Cluster install**: There's now support for
auto-installing the Custom Resource Definitions (CRDs) for Multi-Cluster
Services (MCS).
([cilium/cilium#40729](https://redirect.github.com/cilium/cilium/pull/40729),
[@&#8203;MrFreezeex](https://redirect.github.com/MrFreezeex))
- 📜 **Simpler Certificate Management**: Streamline Cluster Mesh and
Hubble certificate generation when using GitOps approaches.
([cilium/cilium#42298](https://redirect.github.com/cilium/cilium/pull/42298),
[@&#8203;MrFreezeex](https://redirect.github.com/MrFreezeex))
- 🛠️ **Cilium dependencies** were updated to Kubernetes v1.35, Envoy
v1.35, Gateway API v1.4, and GoBGP v3.37.
([cilium/cilium#43422](https://redirect.github.com/cilium/cilium/pull/43422),
[@&#8203;aanm](https://redirect.github.com/aanm);
[cilium/cilium#40569](https://redirect.github.com/cilium/cilium/pull/40569),
[@&#8203;sayboras](https://redirect.github.com/sayboras);
[cilium/cilium#41936](https://redirect.github.com/cilium/cilium/pull/41936),
[@&#8203;youngnick](https://redirect.github.com/youngnick);
[cilium/cilium#42824](https://redirect.github.com/cilium/cilium/pull/42824),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs)).

- 🏠 **Community**
- ❤️ **Production Case Studies**: Many end-users have stepped forward to
tell their stories running Cilium in production. If your company wants
to submit their case studies let us know. We would love to hear your
feedback!
- 📰 See studies with
[Airbnb](https://youtu.be/7KHenRXNGAw?si=ldTS-X_W0svxo429\&t=546),
[Cloudera](https://aws.amazon.com/blogs/migration-and-modernization/scaling-clouderas-development-environment-leveraging-amazon-eks-karpenter-bottlerocket-and-cilium-for-hybrid-cloud/),[
Cybozu](https://www.cncf.io/case-studies/cybozu/),
[ESnet](https://www.cncf.io/case-studies/esnet/),[
Nutanix](https://www.cncf.io/case-studies/nutanix/),
[OVHcloud](https://corporate.ovhcloud.com/en-gb/newsroom/news/ovhcloud-managed-kubernetes-service-standard-3az/),
[TikTok](https://www.youtube.com/watch?v=y0qlhiKtDGo), [University of
Wisconsin–Madison](https://www.cncf.io/case-studies/university-of-wisconsin-madison/).
- 🇺🇸 **Atlanta Events**: The community gathered at
[CiliumCon](https://www.youtube.com/playlist?list=PLDg_GiBbAx-mOnWuzd_NXoRfuW9HZAxeZ)
and the [Cilium Developer
Summit](https://redirect.github.com/cilium/dev-summits/blob/main/2025-NA/README.md)
in Atlanta.
- 🇳🇱 **Amsterdam Events**: Meet us at the upcoming
[CiliumCon](https://events.linuxfoundation.org/kubecon-cloudnativecon-europe/co-located-events/ciliumcon/)
and [Cilium Developer
Summit](https://redirect.github.com/cilium/dev-summits/tree/main/2026-EU)
in Amsterdam, March 23-27. [Read
more](https://cilium.io/blog/2026/01/23/cilium-at-kubecon-eu-2026/)
about where to find Cilium during the show.
- 🔟 **Cilium is 10**: Read the [2025 Cilium Annual
Report](https://www.cncf.io/wp-content/uploads/2025/12/cilium-annual-report-2025-final.pdf)
to see the latest project milestones, a decade on from its first commit.

To keep up to date with all the latest Cilium releases, join #release 🎉

:birthday::heart::heart::heart::birthday:
This is a very special release for Cilium, as it celebrates **10 years**
since the first commit. We couldn’t be more proud of what this project
has accomplished. All the GitHub issues, pull requests, reviews, stars,
forks, Docker pulls, Helm installs, Kubernetes applies, CI runs, bug
reports, design docs, discussions, meetings, Slack messages, YouTube
streams, eCHO episodes, conference talks, blog posts, demos, and
presentations have made the project the success it is today.
:birthday::heart::heart::heart::birthday:

#### Docker Manifests

##### cilium


`quay.io/cilium/cilium:v1.19.0@&#8203;sha256:be9f8571c2e114b3e12e41f785f2356ade703b2eac936aa878805565f0468c60`

##### clustermesh-apiserver


`quay.io/cilium/clustermesh-apiserver:v1.19.0@&#8203;sha256:0e3b89fdb116eb0f5579fe8ee3fabb1a7c4d97987a1ae927491d9185785d4a49`

##### docker-plugin


`quay.io/cilium/docker-plugin:v1.19.0@&#8203;sha256:35727047384f3d7a2684885003b266bf7a7add8fc66ca564b222f71c16057f50`

##### hubble-relay


`quay.io/cilium/hubble-relay:v1.19.0@&#8203;sha256:7f17e5bb51a9f35bbc8e7a9ad5e347f03ff8003c2e5cc81171e8727a10bf03b4`

##### operator-alibabacloud


`quay.io/cilium/operator-alibabacloud:v1.19.0@&#8203;sha256:5cb3d6981c233616037f3e13b5bc0020d114ad8db1b7360618b224e4c0b02ef0`

##### operator-aws


`quay.io/cilium/operator-aws:v1.19.0@&#8203;sha256:7a236ae256a4fbd3f72d516921131eba5b43f401ba37cdee5cd0e8c26f9263e6`

##### operator-azure


`quay.io/cilium/operator-azure:v1.19.0@&#8203;sha256:6ae7e0d75c74836af3600b775201c89ea7fcc13d6e08fdb0c52927309f31cd2a`

##### operator-generic


`quay.io/cilium/operator-generic:v1.19.0@&#8203;sha256:5b04006015e5800307dc6314676edc4c0bb7ac2fc7848be2b94b43bb030ab648`

##### operator


`quay.io/cilium/operator:v1.19.0@&#8203;sha256:deca84f442752dca0745dd09b13e8004569414839019ad79ac58f9fcaa3b9d65`

</details>

---

### 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 is behind base branch, or you tick the
rebase/retry checkbox.

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

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yLjYiLCJ1cGRhdGVkSW5WZXIiOiI0My4zLjQiLCJ0YXJnZXRCcmFuY2giOiJtYWluIiwibGFiZWxzIjpbInJlbm92YXRlL2hlbG0iLCJ0eXBlL21pbm9yIl19-->

Co-authored-by: bot-nicole[bot] <205127124+bot-nicole[bot]@users.noreply.github.com>
enchantednatures pushed a commit to enchantednatures/HomeCluster that referenced this pull request Feb 9, 2026
This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [cilium](https://cilium.io/)
([source](https://redirect.github.com/cilium/cilium)) | minor | `1.18.6`
→ `1.19.0` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>cilium/cilium (cilium)</summary>

###
[`v1.19.0`](https://redirect.github.com/cilium/cilium/releases/tag/v1.19.0):
1.19.0

[Compare
Source](https://redirect.github.com/cilium/cilium/compare/1.18.6...1.19.0)

🎉 **Release Announcement** 🎉: We are excited to announce the [Cilium
1.19.0](https://redirect.github.com/cilium/cilium/releases/tag/v1.19.0)
release!

A total of **2934 new commits** have been contributed to this release by
a growing community of over **1010 developers** and over **23,600 GitHub
stars**! 🤩

⚠️ You may need to take action during upgrade to Cilium v1.19 if you use
Network Policies, Cluster Mesh, LoadBalancer IPAM or BGP. See the
[Upgrade
Guide](https://docs.cilium.io/en/v1.19/operations/upgrade/#upgrade-notes)
for more details.

The full changelog can be found
[here](https://redirect.github.com/cilium/cilium/blob/v1.19/CHANGELOG.md).

Here are some of the highlights:

- 🛡️ **Network Policy**
- 🃏 **Multi-Level DNS Matches**: DNS Policies match pattern now support
a wildcard prefix(*`**.`*) to match multilevel subdomain as pattern
prefix.
([cilium/cilium#43420](https://redirect.github.com/cilium/cilium/pull/43420),
[@&#8203;fristonio](https://redirect.github.com/fristonio))
- 📡 **Match New Protocols**: You can now match VRRP and IGMP protocols
in host firewall rules.
([cilium/cilium#39872](https://redirect.github.com/cilium/cilium/pull/39872),
[@&#8203;aditighag](https://redirect.github.com/aditighag);
[cilium/cilium#41949](https://redirect.github.com/cilium/cilium/pull/41949),
[@&#8203;kyounghunJang](https://redirect.github.com/kyounghunJang))
- ⛔ **Actively Deny Connections**: When Network Policies deny a
connection, Cilium can return ICMPv4 "Destination unreachable" messages
for a friendlier deny.
([cilium/cilium#41406](https://redirect.github.com/cilium/cilium/pull/41406),
[@&#8203;antonipp](https://redirect.github.com/antonipp))
- 🌐 **Select Clusters Explicitly**: When network policy selectors don't
explicitly define a cluster for communication to be allowed, they will
now default to only allowing the local cluster.
([cilium/cilium#40609](https://redirect.github.com/cilium/cilium/pull/40609),
[@&#8203;MrFreezeex](https://redirect.github.com/MrFreezeex))
- 🔧 **Unlock Future Work**: This release brings several internal
improvements to the network policy engine in preparation for features
planned in the next Cilium minor release
([cilium/cilium#39906](https://redirect.github.com/cilium/cilium/pull/39906),
[@&#8203;vipul-21](https://redirect.github.com/vipul-21);
[cilium/cilium#42784](https://redirect.github.com/cilium/cilium/pull/42784),
[cilium/cilium#42896](https://redirect.github.com/cilium/cilium/pull/42896),
[@&#8203;jrajahalme](https://redirect.github.com/jrajahalme))
- ⚠️ **Deprecate underutilized features**: To focus on solving common
problems Cilium users face, this release deprecates the Kafka protocol
match fields (beta), as well as the `ToRequires` and `FromRequires`
policy fields.
([cilium/cilium#43167](https://redirect.github.com/cilium/cilium/pull/43167),
[@&#8203;sayboras](https://redirect.github.com/sayboras);
[cilium/cilium#40967](https://redirect.github.com/cilium/cilium/pull/40967),
[@&#8203;TheBeeZee](https://redirect.github.com/TheBeeZee))

- 🔒 **Encryption & Authentication**
- 🔐 **Encryption Strict Modes**: Both IPsec and WireGuard transparent
encryption modes now support a "strict mode" to require traffic to be
encrypted between nodes. Unencrypted traffic will be dropped in this
mode.
([cilium/cilium#39239](https://redirect.github.com/cilium/cilium/pull/39239),
[cilium/cilium#42115](https://redirect.github.com/cilium/cilium/pull/42115),
[@&#8203;rgo3](https://redirect.github.com/rgo3),
[@&#8203;julianwiedmann](https://redirect.github.com/julianwiedmann))
- 🚇 **Ztunnel Beta**: You can enroll namespaces into Ztunnel, which
enables TCP connections between workloads to be transparently encrypted
and authenticated.
([cilium/cilium#42766](https://redirect.github.com/cilium/cilium/pull/42766),
[cilium/cilium#42819](https://redirect.github.com/cilium/cilium/pull/42819),
[cilium/cilium#43227](https://redirect.github.com/cilium/cilium/pull/43227)
and others, [@&#8203;ldelossa](https://redirect.github.com/ldelossa),
[@&#8203;rgo3](https://redirect.github.com/rgo3),
[@&#8203;nddq](https://redirect.github.com/nddq))
- 👥 **Mutual Authentication**: The out-of-band [Mutual
Authentication](https://docs.cilium.io/en/v1.19/network/servicemesh/mutual-authentication/mutual-authentication/)
feature is now disabled by default, pending community feedback. If you
have a requirement for mTLS, consider trying the new Ztunnel
integration.
([cilium/cilium#42665](https://redirect.github.com/cilium/cilium/pull/42665),
[@&#8203;christarazi](https://redirect.github.com/christarazi))
- ↪️ **Accelerate IPsec**: The IPsec encryption mode now supports BPF
Host Routing for faster route lookups
([cilium/cilium#41997](https://redirect.github.com/cilium/cilium/pull/41997),
[@&#8203;pchaigno](https://redirect.github.com/pchaigno))

- 🚠 **Networking**
- 🚀 **BIG TCP in Tunnels**: Leverage upcoming Linux support for BIG TCP
when communicating over UDP-based tunnels such as VXLAN and Geneve.
([cilium/cilium#43416](https://redirect.github.com/cilium/cilium/pull/43416),
[@&#8203;gentoo-root](https://redirect.github.com/gentoo-root))
- 🥌 **Packetization-Layer Path MTU Discovery**: Detect maximum
transmission unit (MTU) sizes for network paths using TCP.
([cilium/cilium#42012](https://redirect.github.com/cilium/cilium/pull/42012),
[cilium/cilium#43710](https://redirect.github.com/cilium/cilium/pull/43710),
[@&#8203;tommyp1ckles](https://redirect.github.com/tommyp1ckles))
- 🚆 **IPv6 Underlay**: You can now choose IPv6 for the tunnel underlay
address family on dual-stack clusters.
([cilium/cilium#40324](https://redirect.github.com/cilium/cilium/pull/40324),
[@&#8203;pchaigno](https://redirect.github.com/pchaigno))
- 🏷️ **Multi-Pool IPAM is ready for wider use**: Update the Multi-Pool
IPAM feature to work with IPsec and direct routing modes, and promote it
from Beta to Stable.
([cilium/cilium#40460](https://redirect.github.com/cilium/cilium/pull/40460),
[cilium/cilium#42191](https://redirect.github.com/cilium/cilium/pull/42191),
[@&#8203;pippolo84](https://redirect.github.com/pippolo84))
- 🎭 **More Configurable Masquerade**: IP Masquerade configuration can
now be customized for traffic sent to nodes in other IP subnets, and
addresses in IPAM pools can be excluded from masquerade
([cilium/cilium#37568](https://redirect.github.com/cilium/cilium/pull/37568),
[@&#8203;behzad-mir](https://redirect.github.com/behzad-mir);
[cilium/cilium#43380](https://redirect.github.com/cilium/cilium/pull/43380),
[@&#8203;alimehrabikoshki](https://redirect.github.com/alimehrabikoshki))

- 🕸️ **Services and Service Mesh**
- 📣 **Layer-2 Announcements**: Add support for Neighbor Discovery
Advertisements for IPv6 Layer-2 Announcements.
([cilium/cilium#39648](https://redirect.github.com/cilium/cilium/pull/39648),
[@&#8203;msune](https://redirect.github.com/msune))
- 🔁 **IPv6 Service Loopback**: Pods can now connect to themselves via a
Kubernetes "loopback service" using IPv6.
([cilium/cilium#39594](https://redirect.github.com/cilium/cilium/pull/39594),
[@&#8203;saiaunghlyanhtet](https://redirect.github.com/saiaunghlyanhtet))
- ⛩️ **Gateway API Enhancements**: Cilium's GAMMA support now includes
support for using GRPCRoute as well as HTTPRoute.
([cilium/cilium#41936](https://redirect.github.com/cilium/cilium/pull/41936),
[@&#8203;youngnick](https://redirect.github.com/youngnick))

- 🛣️ **Border Gateway Protocol (BGP)**
- 🔌 **Advertise Addresses from Interfaces**: There's a new Interface BGP
advertisement type that allows advertisement of IPs assigned on local
interfaces. This can be useful for example in multi-homing setups, where
a common node's loopback address can be advertised via multiple BGP
sessions over different network interfaces.
([cilium/cilium#42469](https://redirect.github.com/cilium/cilium/pull/42469),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs))
- ✉️ **Override Source IP addresses**: You can override the
auto-generated BGP session source IP with the IP address applied on the
configured `sourceInterface` to allow binding the BGP connection to the
loopback address which is not tied to the specific physical interface's
lifecycle
([cilium/cilium#42583](https://redirect.github.com/cilium/cilium/pull/42583),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs))
- 🔁 **Withdraw Empty Routes**: Optionally withdraw BGP routes when a
service has 0 endpoints, to allow balancing to a different DC/cluster
with `externalTrafficPolicy=Cluster`
([cilium/cilium#40717](https://redirect.github.com/cilium/cilium/pull/40717),
[@&#8203;oblazek](https://redirect.github.com/oblazek))
- ⚠️ **Move to `cilium.io/v2` API**: The support for the older
`CiliumBGPPeeringPolicy` v1 API is now removed and should be replaced
with v2 APIs.
([cilium/cilium#42278](https://redirect.github.com/cilium/cilium/pull/42278),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs))

- 🛰️ **Observability**
- 🔬 **Trace IP Options**: Configure Cilium and Hubble to trace specific
packets through the cluster using IP Options.
([cilium/cilium#41306](https://redirect.github.com/cilium/cilium/pull/41306),
[@&#8203;Bigdelle](https://redirect.github.com/Bigdelle))
- 🚩 **Filter Encrypted Flows**: Filter flows when using the `hubble`
command line to understand the encryption status of the traffic, either
`--encrypted` or `--unencrypted`.
([cilium/cilium#43096](https://redirect.github.com/cilium/cilium/pull/43096),
[@&#8203;SRodi](https://redirect.github.com/SRodi))
- 🔖 **Tag Drops with Policy Names**: Hubble v1.Events drop messages now
include which Network Policy caused the drop.
([cilium/cilium#41693](https://redirect.github.com/cilium/cilium/pull/41693),
[@&#8203;41ks](https://redirect.github.com/41ks))

- 🌅 **Performance and Scale**
- ⚡ **Faster Network Policy Computation**: Improve Cilium resource usage
for handling selectors in network policies.
([cilium/cilium#42008](https://redirect.github.com/cilium/cilium/pull/42008),
[@&#8203;jrajahalme](https://redirect.github.com/jrajahalme);
[cilium/cilium#42580](https://redirect.github.com/cilium/cilium/pull/42580),
[@&#8203;odinuge](https://redirect.github.com/odinuge))
- 🔌 **More Efficient Connection Tracking**: Several improvements have
been made to reduce the number of connections being tracked by Cilium,
particularly when using Geneve, VXLAN or WireGuard.
([cilium/cilium#38782](https://redirect.github.com/cilium/cilium/pull/38782),
[@&#8203;BenoitKnecht](https://redirect.github.com/BenoitKnecht);
[cilium/cilium#41990](https://redirect.github.com/cilium/cilium/pull/41990),
[@&#8203;bersoare](https://redirect.github.com/bersoare))
- 💾 **Better Scale in AWS**: Reduce memory usage for cilium-operator in
large AWS environments with many resources.
([cilium/cilium#42529](https://redirect.github.com/cilium/cilium/pull/42529),
[@&#8203;liyihuang](https://redirect.github.com/liyihuang))

- ⚙️ **Operations**
- 📦 **Access Helm charts via Registry**: Helm charts are also available
under `quay.io/cilium/charts/cilium`
([cilium/cilium#43624](https://redirect.github.com/cilium/cilium/pull/43624),
[@&#8203;aanm](https://redirect.github.com/aanm))
- 📊 **Metrics Encryption**: Add TLS/mTLS support for Prometheus metrics
exposed by the Cilium Operator.
([cilium/cilium#42077](https://redirect.github.com/cilium/cilium/pull/42077),
[@&#8203;phuhung273](https://redirect.github.com/phuhung273))
- 🤖 **Easier Multi-Cluster install**: There's now support for
auto-installing the Custom Resource Definitions (CRDs) for Multi-Cluster
Services (MCS).
([cilium/cilium#40729](https://redirect.github.com/cilium/cilium/pull/40729),
[@&#8203;MrFreezeex](https://redirect.github.com/MrFreezeex))
- 📜 **Simpler Certificate Management**: Streamline Cluster Mesh and
Hubble certificate generation when using GitOps approaches.
([cilium/cilium#42298](https://redirect.github.com/cilium/cilium/pull/42298),
[@&#8203;MrFreezeex](https://redirect.github.com/MrFreezeex))
- 🛠️ **Cilium dependencies** were updated to Kubernetes v1.35, Envoy
v1.35, Gateway API v1.4, and GoBGP v3.37.
([cilium/cilium#43422](https://redirect.github.com/cilium/cilium/pull/43422),
[@&#8203;aanm](https://redirect.github.com/aanm);
[cilium/cilium#40569](https://redirect.github.com/cilium/cilium/pull/40569),
[@&#8203;sayboras](https://redirect.github.com/sayboras);
[cilium/cilium#41936](https://redirect.github.com/cilium/cilium/pull/41936),
[@&#8203;youngnick](https://redirect.github.com/youngnick);
[cilium/cilium#42824](https://redirect.github.com/cilium/cilium/pull/42824),
[@&#8203;rastislavs](https://redirect.github.com/rastislavs)).

- 🏠 **Community**
- ❤️ **Production Case Studies**: Many end-users have stepped forward to
tell their stories running Cilium in production. If your company wants
to submit their case studies let us know. We would love to hear your
feedback!
- 📰 See studies with
[Airbnb](https://youtu.be/7KHenRXNGAw?si=ldTS-X_W0svxo429\&t=546),
[Cloudera](https://aws.amazon.com/blogs/migration-and-modernization/scaling-clouderas-development-environment-leveraging-amazon-eks-karpenter-bottlerocket-and-cilium-for-hybrid-cloud/),[
Cybozu](https://www.cncf.io/case-studies/cybozu/),
[ESnet](https://www.cncf.io/case-studies/esnet/),[
Nutanix](https://www.cncf.io/case-studies/nutanix/),
[OVHcloud](https://corporate.ovhcloud.com/en-gb/newsroom/news/ovhcloud-managed-kubernetes-service-standard-3az/),
[TikTok](https://www.youtube.com/watch?v=y0qlhiKtDGo), [University of
Wisconsin–Madison](https://www.cncf.io/case-studies/university-of-wisconsin-madison/).
- 🇺🇸 **Atlanta Events**: The community gathered at
[CiliumCon](https://www.youtube.com/playlist?list=PLDg_GiBbAx-mOnWuzd_NXoRfuW9HZAxeZ)
and the [Cilium Developer
Summit](https://redirect.github.com/cilium/dev-summits/blob/main/2025-NA/README.md)
in Atlanta.
- 🇳🇱 **Amsterdam Events**: Meet us at the upcoming
[CiliumCon](https://events.linuxfoundation.org/kubecon-cloudnativecon-europe/co-located-events/ciliumcon/)
and [Cilium Developer
Summit](https://redirect.github.com/cilium/dev-summits/tree/main/2026-EU)
in Amsterdam, March 23-27. [Read
more](https://cilium.io/blog/2026/01/23/cilium-at-kubecon-eu-2026/)
about where to find Cilium during the show.
- 🔟 **Cilium is 10**: Read the [2025 Cilium Annual
Report](https://www.cncf.io/wp-content/uploads/2025/12/cilium-annual-report-2025-final.pdf)
to see the latest project milestones, a decade on from its first commit.

To keep up to date with all the latest Cilium releases, join #release 🎉

:birthday::heart::heart::heart::birthday:
This is a very special release for Cilium, as it celebrates **10 years**
since the first commit. We couldn’t be more proud of what this project
has accomplished. All the GitHub issues, pull requests, reviews, stars,
forks, Docker pulls, Helm installs, Kubernetes applies, CI runs, bug
reports, design docs, discussions, meetings, Slack messages, YouTube
streams, eCHO episodes, conference talks, blog posts, demos, and
presentations have made the project the success it is today.
:birthday::heart::heart::heart::birthday:

#### Docker Manifests

##### cilium


`quay.io/cilium/cilium:v1.19.0@&#8203;sha256:be9f8571c2e114b3e12e41f785f2356ade703b2eac936aa878805565f0468c60`

##### clustermesh-apiserver


`quay.io/cilium/clustermesh-apiserver:v1.19.0@&#8203;sha256:0e3b89fdb116eb0f5579fe8ee3fabb1a7c4d97987a1ae927491d9185785d4a49`

##### docker-plugin


`quay.io/cilium/docker-plugin:v1.19.0@&#8203;sha256:35727047384f3d7a2684885003b266bf7a7add8fc66ca564b222f71c16057f50`

##### hubble-relay


`quay.io/cilium/hubble-relay:v1.19.0@&#8203;sha256:7f17e5bb51a9f35bbc8e7a9ad5e347f03ff8003c2e5cc81171e8727a10bf03b4`

##### operator-alibabacloud


`quay.io/cilium/operator-alibabacloud:v1.19.0@&#8203;sha256:5cb3d6981c233616037f3e13b5bc0020d114ad8db1b7360618b224e4c0b02ef0`

##### operator-aws


`quay.io/cilium/operator-aws:v1.19.0@&#8203;sha256:7a236ae256a4fbd3f72d516921131eba5b43f401ba37cdee5cd0e8c26f9263e6`

##### operator-azure


`quay.io/cilium/operator-azure:v1.19.0@&#8203;sha256:6ae7e0d75c74836af3600b775201c89ea7fcc13d6e08fdb0c52927309f31cd2a`

##### operator-generic


`quay.io/cilium/operator-generic:v1.19.0@&#8203;sha256:5b04006015e5800307dc6314676edc4c0bb7ac2fc7848be2b94b43bb030ab648`

##### operator


`quay.io/cilium/operator:v1.19.0@&#8203;sha256:deca84f442752dca0745dd09b13e8004569414839019ad79ac58f9fcaa3b9d65`

</details>

---

### Configuration

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America/New_York, 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 this update
again.

---

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---

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Labels

area/datapath Impacts bpf/ or low-level forwarding details, including map management and monitor messages. area/mtu Relates to MTU management in Cilium. backport-done/1.19 The backport for Cilium 1.19.x for this PR is done. release-blocker/1.19 This issue will prevent the release of the next version of Cilium. release-note/minor This PR changes functionality that users may find relevant to operating Cilium.

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