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Comparison · DevOps
Libreswan vs Rivet
A side-by-side editorial comparison of Libreswan and Rivet — release velocity, themes, recent moves, and the top alternatives to consider.
Libreswan vs Rivet: at a glance
| Feature | Libreswan | Rivet |
|---|---|---|
| Sector | DevOps | DevOps |
| Velocity score | 5.0 | 6.3 |
| Sparks · 30d | 0 | 1 |
| Top themes | ipsec, vpn, security-fixes, post-quantum crypto | actors, rust, storage engine, s3 |
| Last editorial update | 7d ago | 16h ago |
| Website | Visit → | — |
What is Libreswan?
Libreswan patches four CVEs on two lines, two of them credited to Claude and Ada Logics.
Libreswan is an IPsec VPN implementation for Linux and the BSDs. On October 5 it released 5.4.1 and 5.3.3 together: 5.4.1 fixes three CVEs (null-pointer crashes on unexpected EAP and empty PKCS7 payloads, and a use-after-free on EOF in IKE over TCP), and 5.3.3 fixes the same three plus a FIPS certificate-leak denial of service. v5.4 in August remains the latest feature release, adding ML-KEM 768 post-quantum key exchange via RFC 9370.
What is Rivet?
Rivet's Rust SDK for Actors is generally available.
Rivet has spent two months building infrastructure for long-lived actors and AI agents: BYOC, OpenTelemetry tracing, actor-scoped JWTs and agentOS Hosted VMs. The 3.0 Preview made Rivet a single stateless binary on S3. The Rust SDK for Rivet Actors is now generally available, with SQLite, WebSockets, cron and OpenTelemetry built in.
Libreswan vs Rivet: editorial side-by-side
Libreswan
5.0DEVOPS
Libreswan patches four CVEs on two lines, two of them credited to Claude and Ada Logics.
◆ Current state
Libreswan is an IPsec VPN implementation for Linux and the BSDs. On October 5 it released 5.4.1 and 5.3.3 together: 5.4.1 fixes three CVEs (null-pointer crashes on unexpected EAP and empty PKCS7 payloads, and a use-after-free on EOF in IKE over TCP), and 5.3.3 fixes the same three plus a FIPS certificate-leak denial of service. v5.4 in August remains the latest feature release, adding ML-KEM 768 post-quantum key exchange via RFC 9370.
◆ Where it's heading
Security response dominates the release history: 5.3.1, 5.3.2, 5.3.3 and 5.4.1 are all CVE releases, with 5.4 the one feature release among them. Recent CVEs credit AI-assisted audits, so the find rate may stay high while that tooling runs over the codebase.
◆ Prediction
Expect further point releases on both the 5.3 and 5.4 lines while 5.3 is still maintained. The entries do not show when a 5.5 feature release is due.
Rivet
6.3DEVOPS
Rivet's Rust SDK for Actors is generally available.
◆ Current state
Rivet has spent two months building infrastructure for long-lived actors and AI agents: BYOC, OpenTelemetry tracing, actor-scoped JWTs and agentOS Hosted VMs. The 3.0 Preview made Rivet a single stateless binary on S3. The Rust SDK for Rivet Actors is now generally available, with SQLite, WebSockets, cron and OpenTelemetry built in.
◆ Where it's heading
Rivet is widening who can build on its actor model while 3.0 matures: a Rust SDK GA lets performance-sensitive teams use it without a TypeScript layer. The platform direction remains S3-only infrastructure for stateful workloads.
◆ Prediction
Expect 3.0 to move toward a stable release and more SDK languages. The entries don't show a 3.0 GA date.
Alternatives to Libreswan and Rivet
Other DevOps products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Libreswan or Rivet.
Gravity Wiz
Gravity Wiz previews Flowcrafter, a visual workflow canvas for Gravity Forms.
GitLab
GitLab sells Orbit as the evidence layer for agent pilots and AI-code rules.
NATS
NATS second release candidates add a config reload check and faster redelivery queues.
Zed
Zed 1.27 writes commit messages in your repo's style and trims agent memory use.
Z-Wave JS UI
Z-Wave JS UI 11.26 picks up zwave-js 15.32 and finishes the move to Node 24.
See all Libreswan alternatives → · See all Rivet alternatives →
Recent activity from Libreswan and Rivet
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 4d agoRivetRust SDK for Rivet Actors Is Now Generally Available
- 15d agoRivetIntroducing Rivet 3.0 Preview ⚡
- 29d agoRivetIntroducing agentOS 0.4 & Hosted VMs
- 1mo agoRivetIntroducing Pi Durable for Rivet
- 1mo agoLibreswan5.4.1 Security Release addresses three CVEs
- 1mo agoLibreswan5.3.3 Security Release addresses four CVEs
- 1mo agoRivetReplacing Our Message Broker with... S3? ⚡
- 1mo agoRivetIntroducing Pi 1.0 for Rivet
- 2mo agoLibreswan5.4: ML-KEM 768 and RFC 9370 multiple key exchanges for IKEv2 ⚡
- 3mo agoLibreswan5.3.2: FIPS-mode daemon crash from malformed X.509 certificates
- 4mo agoLibreswan5.3.1: three CVEs and a newer-GCC compile fix
- 2y agoLibreswanIKEv1 cryptosuite defaults tightened; systemd libxz dependency dropped
Frequently asked questions
What is the difference between Libreswan and Rivet?
They serve adjacent needs but don't currently overlap on shipped themes. Rivet is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Libreswan better than Rivet?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Rivet is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other DevOps products to evaluate alongside.
What are the best alternatives to Libreswan?
Top Libreswan alternatives in DevOps are ranked by recent ship velocity. Browse the "Libreswan alternatives" section above for the current picks, or visit /alternatives/libreswan for the full list with editorial commentary on each.
What are the best alternatives to Rivet?
Top Rivet alternatives in DevOps are ranked by recent ship velocity. Browse the "Rivet alternatives" section above for the current picks, or visit /alternatives/rivet for the full list with editorial commentary on each.