VyOS - Blog

VyOS 1.5.0 GA release

daniil@sentrium.io (Daniil Baturin) — Tue, 31 Mar 2026 00:30:00 GMT

Hello, Community!

VyOS 1.5.0 LTS release is now finalized and its CLI is frozen for any non-compatible changes. Right now subscribers can already download the generic ISO and other on-premises flavors for x86-64 systems. If you are contributing to VyOS and want LTS release images for personal use, remember that we are happy to share them through contributor subscriptions.

Its development started in 2024 and followed the usual two-year LTS release cycle. In those two years we introduced multiple big features including a long-awaited accelerated dataplane and a huge amount of bug fixes.

Download the full release notes

VyOS Stream 2026.03 is available for download

daniil@sentrium.io (Daniil Baturin) — Fri, 20 Mar 2026 09:28:00 GMT

Hello, Community!

VyOS Stream 2026.03 is available for download now. It features multiple backports from the rolling release, including restored ability to directly upgrade from VyOS 1.3.x, a big rework of the VPP CLI, post-quantum pre-shared key support for IPsec, and multiple bug fixes.

VyOS Project March 2026 Update

daniil@sentrium.io (Daniil Baturin) — Tue, 10 Mar 2026 13:11:57 GMT

Hello, Community! The somewhat belated development update that covers changes in the VyOS rolling release in February is finally here. A lot of our attention in February went to VyOS Stream 2026.02, promoting VyOS at MWC Barcelona 2026, and the ongoing work on VyOS 1.5.0. However, there are quite a few updates in rolling that are worth a mention, including support for background operations in the HTTP API, multiple VPP CLI design improvements, and a whole bunch of bug fixes.

VyOS Project January 2026 Update

daniil@sentrium.io (Daniil Baturin) — Fri, 30 Jan 2026 09:00:00 GMT

Hello, Community! The belated development update for December 2025 and January 2026 is finally here.

We are getting closer to the 1.5 release but there's also quite a bit of work towards the future. In particular, there's good progress towards replacing the old configuration command completion mechanism with a VyConf-based equivalent, which will allow us to get rid of legacy command definition files eventually.

More immediate improvements include certificate-based authentication for OpenConnect, new operational commands for VPP, support for configuring watchdog timers, and multiple bug fixes.

VyOS Project November 2025 Update

daniil@sentrium.io (Daniil Baturin) — Mon, 08 Dec 2025 13:03:37 GMT

Hello, Community!

The update for November is here! There are two big features: TLS support for syslog and IPFIX support in VPP, good progress in replacing the old configuration backend, and multiple bug fixes.

VyOS Stream 2025.11 is available for download

daniil@sentrium.io (Daniil Baturin) — Mon, 17 Nov 2025 11:24:27 GMT

Hello, Сommunity!

VyOS Stream 2025.11 and its corresponding source tarball are now available for download. You can find them at the end of this post. This is the third VyOS Stream release on the way to the upcoming 1.5/Circinus LTS release and includes many of its features for you to test — most notably, a VPP-based accelerated dataplane.

VyOS Project October 2025 Update

daniil@sentrium.io (Daniil Baturin) — Tue, 04 Nov 2025 13:04:52 GMT

Hello, Community! The October update is here and it's dominated by bug fixes — as we are preparing to release the next VyOS Stream image on the way to the future VyOS 1.5 and working on the new 1.4.4 maintenance release as well. However, there are a few useful features as well, including support for DHCP options 82 (relay agent information) and 26 (interface MTU), containers health checks, and more.

Buckle Up! VyOS with VPP Is Coming in 1.5

taras@vyos.io (Taras Pudiak) — Mon, 22 Sep 2025 14:30:52 GMT

Happy September to everyone!

We haven't published an expanded blog post about VPP for a while, so it’s a good time to fulfill your curiosity and share the latest updates.

Over the past few months, we’ve made important progress: VPP has been promoted to a core feature, packaging and updates are now aligned with the base OS, smoke tests help catch regressions, fail‑safes have been added, and we’ve defined our initial hardware targets. Here’s what that means for you and what comes next.

VyOS Project August 2025 Update

daniil@sentrium.io (Daniil Baturin) — Tue, 02 Sep 2025 10:15:05 GMT

Hello, Community!

We have some big news for you all in August — the count of changes that VyOS maintainers and community member made this month is small, but their impact makes up for the low number. They include VRF support for DHCP and DHCPv6 servers, steady progress in the legacy configuration backend replacement, multiple bug fixes, and an experimental privilege separation feature that allows limiting users to specific sets of operational commands.

VyOS Project July 2025 Update

daniil@sentrium.io (Daniil Baturin) — Wed, 06 Aug 2025 12:00:00 GMT

Hello, Community!

This month's update looks small — just a few small features and a bunch of bug fixes. One reason is the vacation season, of course. Some people (namely, I and Yuriy) went to DebConf 2025 rather than a vacation, where we heard a lot of interesting talks and had productive conversations with Debian developers — the biggest thing is that we will likely be able to contribute our improvements to live-build back to upstream which is great

The other reason is that there are lots of big developments in-progress that do not have visible effects yet, including an operational mode rework that will open up a pathway to operator-level user access controls; the ongoing work on rewriting the configuration backend; VPP support for VRRP, sFlow support for VPP, and BRAS protocols.

VyOS Project June 2025 Update

daniil@sentrium.io (Daniil Baturin) — Mon, 30 Jun 2025 17:23:51 GMT

Hello, Community!

This month's update looks small but there are quite a few big things happening. Expect a few release posts in the coming weeks! But apart from that, there are big ongoing developments inside the rolling release. First, we are ironing out the remaining issues in the VPP-based accelerated dataplane and we welcome everyone to test them.

In other areas, we are making steady progress at replacing the old configuration backend. Currently the focus is on the commit algorithm, that will make commits much faster and enable long-awaited features such as commit dry run (T7427). The other big things is the operational mode command system rework that will allow us to reintroduce operator level users and improve operational command documentation. Read on for details!

VyOS Project May 2025 Update

daniil@sentrium.io (Daniil Baturin) — Thu, 29 May 2025 10:00:08 GMT

Hello, Community!

Quite a lot of things have happened since the last update we posted in April. In particular, we added the last bit of functionality that we considered a hard requirement for the VPP-based accelerated dataplane: support for VPP firewall. This marks the point when we consider the minimal viable product complete and we plan to ship it in a VyOS Stream release later this year, likely in Q3 — although you don't have to wait for it to play around with it, since it's already in the rolling release.

We are also making a very good progress towards replacing the legacy config backend — that work is still in the development phase and has no visible effects, and will take a while longer to complete, but it's underway.

When it comes to bugs, there are more than twenty recent fixes, including a fix for the nasty bug that led to routing protocol configuration loss if a protocol daemon crashed. Another important fix contributed by a community member makes VMware VMs suspend and resume correctly. Last but not least, the login prompt is no longer displayed in a bold font — that one took more time to track down than anyone hoped, and turned out to be caused by a truncated Systemd service name (ANSI control codes do not reset themselves on word boundaries, you know...).

There are multiple improvements in the base system as well. There's a new set ystem option reboot-on-upgrade-failure command that makes the system automatically reboot into the previous image if the configuration fails to load after upgrade. We hope it will help multiple people avoid unplanned trips to remove places — of course there should be out-of-band management everywhere for this case, but we all know that the real world is not perfect.

Other recently added features include support for IPv6 address in the datasets for firewall remote groups, BPDU guard and root guard supports for bridges, a new option to limit BRAS services (IPoE, PPPoE, and friends) to a specific number of CPU cores to avoid system overload, and more — read on for details!

VyOS Project March 2025 Update

daniil@sentrium.io (Daniil Baturin) — Thu, 27 Mar 2025 14:10:08 GMT

Hello, Community! It's spring in the northern hemisphere, and here's the March update. A lot of our effort is currently going into the development of the accelerated dataplane based on VPP: We added a prototype of IPsec, and we are actively working on support for NAT. But there are many other updates, including a fix for a vulnerability in service console-server, support for loading firewall groups from a URL, an option to set a custom container registry, and more. Read on for details!

VyOS Project Update February 2025

daniil@sentrium.io (Daniil Baturin) — Thu, 27 Feb 2025 00:00:00 GMT

Hello, Community! February was a busy month for us: we merged the initial implementation of an accelerated dataplane into the rolling release branch, added a rewritten implementation of WAN load balancing, revamped the syslog configuration, and fixed a whole bunch of bugs. Read on for details!

VyOS Project January 2025 Update

daniil@sentrium.io (Daniil Baturin) — Thu, 30 Jan 2025 09:46:42 GMT

Hello, Community!

January is usually a quiet month, but there's quite a lot of important work that VyOS maintainers and community contributors have done already. Among them is migration of NHRP to FRR from the barely-maintained OpenNHRP; FQDN peer address support for WireGuard, unified sFlow, and quite a few bug fixes — read on for details!

VyOS VPP addon technology preview is available now

taras@vyos.io (Taras Pudiak) — Thu, 30 May 2024 05:38:26 GMT

Hello, Community!

We are excited to announce major updates on integrating the VPP data plane. Since our last update, significant efforts have been dedicated to testing and stabilization. While the list of improvements may seem modest, it includes crucial changes that enhance VPP's compatibility across multiple environments and configurations.

VyOS and VPP - progress and plans

taras@vyos.io (Taras Pudiak) — Tue, 21 Nov 2023 10:50:03 GMT

A few months ago, attentive readers may have seen in the blog post that in rolling releases we included the VPP data plane. Most attentive may also notice that we have not published any updates or even related commits from that time. We want to clarify the situation with VPP and explain the future of VyOS with VPP. Also, ask for a little feedback from the community.

Short summary for those who want to save time: The VPP data plane integration is under active development and will be available for VyOS as an addon.

The decision about VPP integration was not spontaneous but was made at a moment when we did not have enough time to finish it before the next stable release date. We know, you waited for the next LTS version for a long time, and do not want to let you wait more before we stabilize VPP integration so much that it can be included in the main build without any risks for reliability.

But, where others see problems, we see opportunities. For many years we have had another long-standing idea - providing an ability for developers to create third-party addons for VyOS. And we thought - this can be a solution! Let's pretend that we are third-party developers and try this on our own skin. This allows us to unlock the 1.4 release date and still offer VPP for those who need it (later).

And we moved with all development to a new cozy place, outside of the main source code tree, where experiments cannot hurt anyone.

Now, after months of work and tests, we think it is time to click a switch: clean up vyos-1x from VPP and present the first (unstable, unreliable, not ready for production) VyOS addon - VPP data plane.

Previous VPP announcements did some buzz in the community, but there was almost no feedback. And we do not think this is because the solution was so perfect and complete that there were no bugs to describe or ideas to share. That is why, this time we ask for a little favor in exchange for a VPP addon access - we need your feedback.

It does not matter if you are an enthusiast who plays with the network long autumn evenings or an engineer in a big corporation who is searching for new solutions, your feedback is important and valuable. It allows us to create a solution that fits you first of all.

You can find a form that we ask you to fill out for access to the VPP addon at the end of this post. Access will be provided for one month (or longer - if you will be active), and you will need to contact us with feedback. We hope this is not such a big price for the ability to increase VyOS performance to previously unthinkable levels.

Meanwhile, here is what you may expect:
- full integration with kernel (transparent forwarding between kernel and VPP) for unicast traffic
- Ethernet interfaces
- Bonding interfaces
- VLANs
- VXLAN
- GRE

Please, fill out this form to get access. We hope you will get joy while playing with the addon!