Cilium
@cilium.io
eBPF-based Networking, Security, and Observability
Open Source | http://cilium.io | http://ebpf.io | http://github.com/cilium/cilium
Newsletter http://cilium.io/newsletter
Open Source | http://cilium.io | http://ebpf.io | http://github.com/cilium/cilium
Newsletter http://cilium.io/newsletter
Pinned
Cilium
@cilium.io
· Jul 29
Release 1.18.0 · cilium/cilium
We are excited to announce the Cilium 1.18.0 release!
A total of 3298 new commits have been contributed to this release by a growing community of over 955 developers and over 22,000 GitHub stars! ⭐...
github.com
🐝 Release Announcement 🐝
We are excited to announce the Cilium 1.18.0 release! A total of 3,298 new commits have been contributed to this release by a growing community of over 955 developers and over 22,000 GitHub stars!
Learn more: github.com/cilium/ciliu...
We are excited to announce the Cilium 1.18.0 release! A total of 3,298 new commits have been contributed to this release by a growing community of over 955 developers and over 22,000 GitHub stars!
Learn more: github.com/cilium/ciliu...
Ready to dive into Cilium 1.19?
Join Duffie Cooley and Christian Hernandez tomorrow as they walk through new feature and upgrade highlights!
eBPF & Cilium Office Hours
📆 Friday, February 6, 2pm ET
📺 Join live: www.youtube.com/watch?v=K120...
#eCHO #Cilium #Kubernetes #eBPF
Join Duffie Cooley and Christian Hernandez tomorrow as they walk through new feature and upgrade highlights!
eBPF & Cilium Office Hours
📆 Friday, February 6, 2pm ET
📺 Join live: www.youtube.com/watch?v=K120...
#eCHO #Cilium #Kubernetes #eBPF
February 5, 2026 at 4:22 PM
Ready to dive into Cilium 1.19?
Join Duffie Cooley and Christian Hernandez tomorrow as they walk through new feature and upgrade highlights!
eBPF & Cilium Office Hours
📆 Friday, February 6, 2pm ET
📺 Join live: www.youtube.com/watch?v=K120...
#eCHO #Cilium #Kubernetes #eBPF
Join Duffie Cooley and Christian Hernandez tomorrow as they walk through new feature and upgrade highlights!
eBPF & Cilium Office Hours
📆 Friday, February 6, 2pm ET
📺 Join live: www.youtube.com/watch?v=K120...
#eCHO #Cilium #Kubernetes #eBPF
The Ingress NGINX project will be archived next month. This is a friendly reminder that now is the time to have your migration plans in place. This blog from Dean Lewis explores the current options and shows how Cilium offers both, along with migration guides.
Read more: www.cncf.io/blog/2026/01...
Read more: www.cncf.io/blog/2026/01...
Navigating the ingress-nginx archival: why now is the time to move to Cilium
This Member Blog was originally published on the Isovalent blog and is republished here with permission. If you’re running Kubernetes, there’s a good chance you rely on ingress-nginx to route…
www.cncf.io
February 3, 2026 at 3:48 PM
The Ingress NGINX project will be archived next month. This is a friendly reminder that now is the time to have your migration plans in place. This blog from Dean Lewis explores the current options and shows how Cilium offers both, along with migration guides.
Read more: www.cncf.io/blog/2026/01...
Read more: www.cncf.io/blog/2026/01...
Wondering where to find #Cilium during #KubeCon + #CloudNativeCon Europe?
We've compiled a list of all the #CilliumCon and KubeCon talks that feature the CIlium and #eBPF ecosystem.
We can't wait to see the community in Amsterdam 🚲️ 🌷
Read more: cilium.io/blog/2026/01...
We've compiled a list of all the #CilliumCon and KubeCon talks that feature the CIlium and #eBPF ecosystem.
We can't wait to see the community in Amsterdam 🚲️ 🌷
Read more: cilium.io/blog/2026/01...
Cilium at KubeCon + CloudNativeCon and CiliumCon Europe 2026
Learn how to engage with the Cilium community at KubeCon + CloudNativeCon Europe 2026...
cilium.io
January 30, 2026 at 11:45 AM
Wondering where to find #Cilium during #KubeCon + #CloudNativeCon Europe?
We've compiled a list of all the #CilliumCon and KubeCon talks that feature the CIlium and #eBPF ecosystem.
We can't wait to see the community in Amsterdam 🚲️ 🌷
Read more: cilium.io/blog/2026/01...
We've compiled a list of all the #CilliumCon and KubeCon talks that feature the CIlium and #eBPF ecosystem.
We can't wait to see the community in Amsterdam 🚲️ 🌷
Read more: cilium.io/blog/2026/01...
🐝 Cilium release candidate v1.19.0-rc.1 is live 🐝
Learn more: github.com/cilium/ciliu...
See the docs if you want to pull this version & try it out: docs.cilium.io/en/v1.19.0-r...
Learn more: github.com/cilium/ciliu...
See the docs if you want to pull this version & try it out: docs.cilium.io/en/v1.19.0-r...
January 29, 2026 at 3:43 PM
🐝 Cilium release candidate v1.19.0-rc.1 is live 🐝
Learn more: github.com/cilium/ciliu...
See the docs if you want to pull this version & try it out: docs.cilium.io/en/v1.19.0-r...
Learn more: github.com/cilium/ciliu...
See the docs if you want to pull this version & try it out: docs.cilium.io/en/v1.19.0-r...
Don't forget to join Nicolas Vibert and Daniel Finneran TODAY they talk through the key trends 2026 will bring in #Kubernetes #networking, #security, and #eBPF!
#
eBPF & #Cilium Office Hours
📆 Friday, January 23, 3pm CET
📺 Join live: www.youtube.com/watch?v=xBex...
#
eBPF & #Cilium Office Hours
📆 Friday, January 23, 3pm CET
📺 Join live: www.youtube.com/watch?v=xBex...
LinkedIn
This link will take you to a page that’s not on LinkedIn
lnkd.in
January 23, 2026 at 12:28 PM
Don't forget to join Nicolas Vibert and Daniel Finneran TODAY they talk through the key trends 2026 will bring in #Kubernetes #networking, #security, and #eBPF!
#
eBPF & #Cilium Office Hours
📆 Friday, January 23, 3pm CET
📺 Join live: www.youtube.com/watch?v=xBex...
#
eBPF & #Cilium Office Hours
📆 Friday, January 23, 3pm CET
📺 Join live: www.youtube.com/watch?v=xBex...
A huge thank you to Ilay Kobrin for the new matchParentBinaries selector in #Tetragon! 🐝
This feature lets you filter events based on the parent process, helping you distinguish between legitimate system operations and suspicious activity.
Learn more: github.com/cilium/tetra...
This feature lets you filter events based on the parent process, helping you distinguish between legitimate system operations and suspicious activity.
Learn more: github.com/cilium/tetra...
selectors: add matchParentBinaries selector by kobrineli · Pull Request #4254 · cilium/tetragon
Description This change adds matchParentBinaries selector, which might be useful for proper and granular filtering of parent binaries, which is needed in some specific cases. For instance, there is...
github.com
January 21, 2026 at 2:03 PM
A huge thank you to Ilay Kobrin for the new matchParentBinaries selector in #Tetragon! 🐝
This feature lets you filter events based on the parent process, helping you distinguish between legitimate system operations and suspicious activity.
Learn more: github.com/cilium/tetra...
This feature lets you filter events based on the parent process, helping you distinguish between legitimate system operations and suspicious activity.
Learn more: github.com/cilium/tetra...
This Friday, join Nicolas Vibert and Daniel Finneran as they talk through the key trends 2026 will bring in #Kubernetes networking, security, and #eBPF!
eBPF & Cilium Office Hours
📆 Friday, January 23, 3pm CET
📺 Join live: www.youtube.com/watch?v=xBex...
eBPF & Cilium Office Hours
📆 Friday, January 23, 3pm CET
📺 Join live: www.youtube.com/watch?v=xBex...
January 20, 2026 at 4:59 PM
This Friday, join Nicolas Vibert and Daniel Finneran as they talk through the key trends 2026 will bring in #Kubernetes networking, security, and #eBPF!
eBPF & Cilium Office Hours
📆 Friday, January 23, 3pm CET
📺 Join live: www.youtube.com/watch?v=xBex...
eBPF & Cilium Office Hours
📆 Friday, January 23, 3pm CET
📺 Join live: www.youtube.com/watch?v=xBex...
Where are #Cilium and #Kubernetes networking heading in 2026? 🔮
Nico Vibert shared his predictions, including:
- VMs on Kubernetes & KubeVirt
- The Kubernetworker
- AI workloads
Read more VMBlog: vmblog.com/archive/2026...
Join Nico and for eCHO on Jan 23: www.youtube.com/watch?v=xBex...
Nico Vibert shared his predictions, including:
- VMs on Kubernetes & KubeVirt
- The Kubernetworker
- AI workloads
Read more VMBlog: vmblog.com/archive/2026...
Join Nico and for eCHO on Jan 23: www.youtube.com/watch?v=xBex...
2026 Kubernetes and Cilium Networking Predictions : @VMblog
Kubernetes networking is entering a new phase as organizations prepare their infrastructure for life beyond VMware and for the rapid rise of AI driven workloads.
vmblog.com
January 15, 2026 at 1:21 PM
Where are #Cilium and #Kubernetes networking heading in 2026? 🔮
Nico Vibert shared his predictions, including:
- VMs on Kubernetes & KubeVirt
- The Kubernetworker
- AI workloads
Read more VMBlog: vmblog.com/archive/2026...
Join Nico and for eCHO on Jan 23: www.youtube.com/watch?v=xBex...
Nico Vibert shared his predictions, including:
- VMs on Kubernetes & KubeVirt
- The Kubernetworker
- AI workloads
Read more VMBlog: vmblog.com/archive/2026...
Join Nico and for eCHO on Jan 23: www.youtube.com/watch?v=xBex...
January 13, 2026 at 4:16 PM
Today's the day! Join Thomas Graf, André Martins, Daniel Borkmann, and Joe Stringer for the 200th episode of eCHO! Liz Rice will host as we celebrate a decade of Cilium and look forward to the next.
eBPF & Cilium Office Hours
📆 Friday, January 9, 4pm CET
📺 Join live: www.youtube.com/watch?v=DYqE...
eBPF & Cilium Office Hours
📆 Friday, January 9, 4pm CET
📺 Join live: www.youtube.com/watch?v=DYqE...
January 9, 2026 at 1:07 PM
Today's the day! Join Thomas Graf, André Martins, Daniel Borkmann, and Joe Stringer for the 200th episode of eCHO! Liz Rice will host as we celebrate a decade of Cilium and look forward to the next.
eBPF & Cilium Office Hours
📆 Friday, January 9, 4pm CET
📺 Join live: www.youtube.com/watch?v=DYqE...
eBPF & Cilium Office Hours
📆 Friday, January 9, 4pm CET
📺 Join live: www.youtube.com/watch?v=DYqE...
🐝 Cilium v1.19.0-pre.4 has been released 🐝
This will be the last pre-release of v1.19.
Thank you to all the contributors, and those who have tested out the previous pre-releases!
Learn more: github.com/cilium/ciliu...
Pull this version & try it out: docs.cilium.io/en/v1.19.0-p...
This will be the last pre-release of v1.19.
Thank you to all the contributors, and those who have tested out the previous pre-releases!
Learn more: github.com/cilium/ciliu...
Pull this version & try it out: docs.cilium.io/en/v1.19.0-p...
Release 1.19.0-pre.4 · cilium/cilium
Summary of Changes Major Changes: Cilium policy engine now supports enforcing ordered policy rules. (#42784, @jrajahalme) Policy engine adds support for tiers and pass verdicts for ClusterNetworkP...
github.com
January 8, 2026 at 10:51 AM
🐝 Cilium v1.19.0-pre.4 has been released 🐝
This will be the last pre-release of v1.19.
Thank you to all the contributors, and those who have tested out the previous pre-releases!
Learn more: github.com/cilium/ciliu...
Pull this version & try it out: docs.cilium.io/en/v1.19.0-p...
This will be the last pre-release of v1.19.
Thank you to all the contributors, and those who have tested out the previous pre-releases!
Learn more: github.com/cilium/ciliu...
Pull this version & try it out: docs.cilium.io/en/v1.19.0-p...
Don't miss this special 200th episode of eCHO where we will be joined by creators & maintainers of Cilium to celebrate a decade of the project!
📆 Friday, Jan 9, 4pm CET
✍️ RSVP: buff.ly/wuTFtvY
❓ Share your questions for the maintainers or submit a question for the community quiz:
buff.ly/QN1uGnw
📆 Friday, Jan 9, 4pm CET
✍️ RSVP: buff.ly/wuTFtvY
❓ Share your questions for the maintainers or submit a question for the community quiz:
buff.ly/QN1uGnw
December 29, 2025 at 1:59 PM
Don't miss this special 200th episode of eCHO where we will be joined by creators & maintainers of Cilium to celebrate a decade of the project!
📆 Friday, Jan 9, 4pm CET
✍️ RSVP: buff.ly/wuTFtvY
❓ Share your questions for the maintainers or submit a question for the community quiz:
buff.ly/QN1uGnw
📆 Friday, Jan 9, 4pm CET
✍️ RSVP: buff.ly/wuTFtvY
❓ Share your questions for the maintainers or submit a question for the community quiz:
buff.ly/QN1uGnw
#CaseStudy: “Cilium has been phenomenal, we started with core networking, added Hubble for observability, Cluster Mesh for cross-cluster communication.”
Read more about how the University of Wisconsin-Madison uses #Cilium for multi-cluster visibility and control:
www.cncf.io/case-studies...
Read more about how the University of Wisconsin-Madison uses #Cilium for multi-cluster visibility and control:
www.cncf.io/case-studies...
University of Wisconsin–Madison
The University of Wisconsin–Madison is one of the nation’s premier research universities, ranked 8th nationally for research volume with $1.3 billion in research expenditures. As a top R1 research…
www.cncf.io
December 23, 2025 at 3:48 PM
#CaseStudy: “Cilium has been phenomenal, we started with core networking, added Hubble for observability, Cluster Mesh for cross-cluster communication.”
Read more about how the University of Wisconsin-Madison uses #Cilium for multi-cluster visibility and control:
www.cncf.io/case-studies...
Read more about how the University of Wisconsin-Madison uses #Cilium for multi-cluster visibility and control:
www.cncf.io/case-studies...
Don't miss this special 200th episode of eCHO where we will be joined by creators & maintainers of Cilium to celebrate a decade of the project!
📆 Friday, Jan 9, 4pm CET
✍️ RSVP: buff.ly/wuTFtvY
❓ Share your questions for the maintainers or submit a question for the community quiz:
buff.ly/QN1uGnw
📆 Friday, Jan 9, 4pm CET
✍️ RSVP: buff.ly/wuTFtvY
❓ Share your questions for the maintainers or submit a question for the community quiz:
buff.ly/QN1uGnw
December 22, 2025 at 4:36 PM
Don't miss this special 200th episode of eCHO where we will be joined by creators & maintainers of Cilium to celebrate a decade of the project!
📆 Friday, Jan 9, 4pm CET
✍️ RSVP: buff.ly/wuTFtvY
❓ Share your questions for the maintainers or submit a question for the community quiz:
buff.ly/QN1uGnw
📆 Friday, Jan 9, 4pm CET
✍️ RSVP: buff.ly/wuTFtvY
❓ Share your questions for the maintainers or submit a question for the community quiz:
buff.ly/QN1uGnw
In December 2015, Thomas Graf pushed the first commit for #Cilium. Ten years later, a bold idea is now the industry standard for #cloudnative networking.
Read more in the 2025 Cilium Annual Report. Let's celebrate a decade of Cilium and look forward to the next!
Read more in the 2025 Cilium Annual Report. Let's celebrate a decade of Cilium and look forward to the next!
December 18, 2025 at 4:00 PM
In December 2015, Thomas Graf pushed the first commit for #Cilium. Ten years later, a bold idea is now the industry standard for #cloudnative networking.
Read more in the 2025 Cilium Annual Report. Let's celebrate a decade of Cilium and look forward to the next!
Read more in the 2025 Cilium Annual Report. Let's celebrate a decade of Cilium and look forward to the next!
Reposted by Cilium
Advent of code? How about advent of eBee? 🐝 Brush up on your @cilium.io skills over the holidays 🎄
A holiday virtual eBee Quest!
Join our eBee Quest! Tackle our labs during the holidays, compete with others in completing all the labs there are, get the chance to win something - and learn a lot during the process!
isovalent.com
December 9, 2025 at 12:01 PM
Advent of code? How about advent of eBee? 🐝 Brush up on your @cilium.io skills over the holidays 🎄
Reposted by Cilium
December 17, 2025 at 12:56 PM
Hear from Peace Sandy, an #LFX mentee who contributed to improving #Cilium's SEO, AEO, and AIO during her recent mentorship.
Cilium is an exciting and welcoming project for anyone interested in #opensource, and I’m grateful to have been part of it."
🔗 cilium.io/blog/2025/11...
Cilium is an exciting and welcoming project for anyone interested in #opensource, and I’m grateful to have been part of it."
🔗 cilium.io/blog/2025/11...
Contributing to Cilium Through the LFX Mentorship Program
A detailed reflection on my 3-month LFX Mentorship improving Cilium’s SEO, AEO, and AIO to enhance discoverability, structured data, ...
cilium.io
December 9, 2025 at 5:05 PM
Hear from Peace Sandy, an #LFX mentee who contributed to improving #Cilium's SEO, AEO, and AIO during her recent mentorship.
Cilium is an exciting and welcoming project for anyone interested in #opensource, and I’m grateful to have been part of it."
🔗 cilium.io/blog/2025/11...
Cilium is an exciting and welcoming project for anyone interested in #opensource, and I’m grateful to have been part of it."
🔗 cilium.io/blog/2025/11...
Nutanix is actively extending its use of #Cilium throughout more environments in the NKP stack. This shift enables an #eBPF-native networking path, which improves performance, simplifies operations, and unlocks advanced features across hybrid workloads.
Read more about: www.cncf.io/case-studies...
Read more about: www.cncf.io/case-studies...
December 5, 2025 at 3:17 PM
Nutanix is actively extending its use of #Cilium throughout more environments in the NKP stack. This shift enables an #eBPF-native networking path, which improves performance, simplifies operations, and unlocks advanced features across hybrid workloads.
Read more about: www.cncf.io/case-studies...
Read more about: www.cncf.io/case-studies...
🐝 eCHO News 96 🐝
eBPF for L7 Load Balancing at Alibaba
Cilium on Open Source Friday
cs.co/echo-news-96
eBPF for L7 Load Balancing at Alibaba
Cilium on Open Source Friday
cs.co/echo-news-96
December 4, 2025 at 3:28 PM
🐝 eCHO News 96 🐝
eBPF for L7 Load Balancing at Alibaba
Cilium on Open Source Friday
cs.co/echo-news-96
eBPF for L7 Load Balancing at Alibaba
Cilium on Open Source Friday
cs.co/echo-news-96
Cilium v1.19.0-pre.3 has been released 🐝
A big thank you to all of the contributors, and tho those who have tested the previous pre-releases!
Learn more: github.com/cilium/ciliu...
Docs are available if you want to pull this version and try it out: docs.cilium.io/en/v1.19.0-p...
A big thank you to all of the contributors, and tho those who have tested the previous pre-releases!
Learn more: github.com/cilium/ciliu...
Docs are available if you want to pull this version and try it out: docs.cilium.io/en/v1.19.0-p...
Release 1.19.0-pre.3 · cilium/cilium
Summary of Changes Major Changes: ztunnel: add xds control-plane (#42169, @rgo3) ztunnel: add ztunnel daemonset controller (#42766, @ldelossa) Minor Changes: Add iptables rule to allow tunnel tr...
github.com
December 3, 2025 at 12:03 PM
Cilium v1.19.0-pre.3 has been released 🐝
A big thank you to all of the contributors, and tho those who have tested the previous pre-releases!
Learn more: github.com/cilium/ciliu...
Docs are available if you want to pull this version and try it out: docs.cilium.io/en/v1.19.0-p...
A big thank you to all of the contributors, and tho those who have tested the previous pre-releases!
Learn more: github.com/cilium/ciliu...
Docs are available if you want to pull this version and try it out: docs.cilium.io/en/v1.19.0-p...
“The power of Hubble is a godsend. If there’s one tool I use day in and day out, that’s Hubble.”
Learn how Hubble, #Cilium’s observability platform, became a critical tool for network debugging within ESNet,
Read more: www.cncf.io/case-studies...
Learn how Hubble, #Cilium’s observability platform, became a critical tool for network debugging within ESNet,
Read more: www.cncf.io/case-studies...
December 2, 2025 at 3:35 PM
“The power of Hubble is a godsend. If there’s one tool I use day in and day out, that’s Hubble.”
Learn how Hubble, #Cilium’s observability platform, became a critical tool for network debugging within ESNet,
Read more: www.cncf.io/case-studies...
Learn how Hubble, #Cilium’s observability platform, became a critical tool for network debugging within ESNet,
Read more: www.cncf.io/case-studies...
“When we first deployed #Cilium we were running only a few types of services on #Kubernetes clusters but now...we can move the rest of our services off of our old VM-based cloud. Cilium helped make this move possible.”
Read more about how Cybozu is using Cilium:
www.cncf.io/case-studies...
Read more about how Cybozu is using Cilium:
www.cncf.io/case-studies...
Cybozu
Cybozu, a Japanese software company known for its customizable workplace platform Kintone, decided to modernize its infrastructure from traditional on-premises virtual machines to Kubernetes on bare…
www.cncf.io
November 26, 2025 at 1:54 PM
“When we first deployed #Cilium we were running only a few types of services on #Kubernetes clusters but now...we can move the rest of our services off of our old VM-based cloud. Cilium helped make this move possible.”
Read more about how Cybozu is using Cilium:
www.cncf.io/case-studies...
Read more about how Cybozu is using Cilium:
www.cncf.io/case-studies...
Only a few days left to submit for the #eBPF Summit 2025 #Hackathon! 🐝 💻
Submissions close this Sunday, November 30.
Register on Devpost: lnkd.in/eh4rRaa2
Learn more about what & how to submit: lnkd.in/eBR-n5gD
Questions? Join the ebpf-summit channel in Cilium & eBPF Slack: lnkd.in/eUhYfTHS
Submissions close this Sunday, November 30.
Register on Devpost: lnkd.in/eh4rRaa2
Learn more about what & how to submit: lnkd.in/eBR-n5gD
Questions? Join the ebpf-summit channel in Cilium & eBPF Slack: lnkd.in/eUhYfTHS
November 26, 2025 at 1:47 PM
Only a few days left to submit for the #eBPF Summit 2025 #Hackathon! 🐝 💻
Submissions close this Sunday, November 30.
Register on Devpost: lnkd.in/eh4rRaa2
Learn more about what & how to submit: lnkd.in/eBR-n5gD
Questions? Join the ebpf-summit channel in Cilium & eBPF Slack: lnkd.in/eUhYfTHS
Submissions close this Sunday, November 30.
Register on Devpost: lnkd.in/eh4rRaa2
Learn more about what & how to submit: lnkd.in/eBR-n5gD
Questions? Join the ebpf-summit channel in Cilium & eBPF Slack: lnkd.in/eUhYfTHS