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Comparison · DevOps
Libreswan vs Sanity
A side-by-side editorial comparison of Libreswan and Sanity — release velocity, themes, recent moves, and the top alternatives to consider.
Libreswan vs Sanity: at a glance
What is Libreswan?
Libreswan puts post-quantum key exchange into IKEv2 — ML-KEM 768 ships in v5.4.
Libreswan spent the last two releases on security patches, including a CVE found when the project ran an AI audit over its own codebase. v5.4 breaks that pattern: it implements RFC 9370's multiple-key-exchange machinery end to end — IKE_INTERMEDIATE, IKE_ADDITIONAL_KE and IKE_FOLLOWUP_KE — and uses it to carry ML_KEM_768 in IKE_SA_INIT and IKE_INTERMEDIATE. The rest of the release is a wide maintenance sweep across kernel integration on the BSDs, config parsing and logging.
What is Sanity?
Sanity is building the headless CMS as an AI agent interface — a new MCP release nearly every day.
Sanity is in a sustained MCP server development sprint, shipping multiple versions per week. The MCP server now covers document creation, querying, publishing, asset management, content releases, and — as of v2.35.0 — workflow authoring and deployment by AI agents. The Studio itself is receiving stability work in parallel: Portable Text crash fixes, auth API modernization, and release management improvements. The pace of MCP iterations is more characteristic of an API startup in beta than an established CMS vendor.
Libreswan vs Sanity: editorial side-by-side
Libreswan
6.3DEVOPS
Libreswan puts post-quantum key exchange into IKEv2 — ML-KEM 768 ships in v5.4.
◆ Current state
Libreswan spent the last two releases on security patches, including a CVE found when the project ran an AI audit over its own codebase. v5.4 breaks that pattern: it implements RFC 9370's multiple-key-exchange machinery end to end — IKE_INTERMEDIATE, IKE_ADDITIONAL_KE and IKE_FOLLOWUP_KE — and uses it to carry ML_KEM_768 in IKE_SA_INIT and IKE_INTERMEDIATE. The rest of the release is a wide maintenance sweep across kernel integration on the BSDs, config parsing and logging.
◆ Where it's heading
The post-quantum work is the spine of this release and it is not experimental framing — it is standards-track RFC 9370 plus a hard dependency on NSS 3.118.1, meaning distributions have to move their crypto library before users can turn it on. Around it, the project keeps grinding on operator experience: better proposal parsing, more specific error messages, traffic selectors and DIGSIG algorithms in logs, and rate-limited logging. Experimental flags for subnet leasing and updown-config suggest the next capability additions are already staged.
◆ Prediction
Expect ML-KEM to move from supported to recommended in default proposals once NSS 3.118.1 is widely packaged, and the experimental leftaddresspool subnet leasing and per-connection debug options to stabilize in a following release.
Sanity
7.5DEVOPS
Sanity is building the headless CMS as an AI agent interface — a new MCP release nearly every day.
◆ Current state
Sanity is in a sustained MCP server development sprint, shipping multiple versions per week. The MCP server now covers document creation, querying, publishing, asset management, content releases, and — as of v2.35.0 — workflow authoring and deployment by AI agents. The Studio itself is receiving stability work in parallel: Portable Text crash fixes, auth API modernization, and release management improvements. The pace of MCP iterations is more characteristic of an API startup in beta than an established CMS vendor.
◆ Where it's heading
Sanity is repositioning the MCP server as the primary integration layer for AI-driven content operations. Each release expands what an AI agent can do without a human at the Studio — from querying to publishing to now designing and deploying workflows. The guidance improvements in v2.35.1 and v2.35.2 show they're actively testing with LLM agents and fixing the failure modes that emerge. The trajectory is toward Sanity being the CMS you can fully operate through an agent.
◆ Prediction
The MCP server will extend to cover permissions and team membership management, and Sanity will likely offer a hosted agent runtime — essentially a place to run content pipelines that execute MCP tool calls on a schedule or trigger. Studio may shift to a configuration and monitoring layer for teams operating primarily through agents.
Alternatives to Libreswan and Sanity
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 Sanity.
CodeRabbit
CodeRabbit launches a cross-repo PR triage queue that ranks every open pull request with evidence.
GitHub
GitHub turns Copilot into an org-wide default, adds memory to agentic security fixes.
containerd
containerd patches CVE-2026-53493 across five branches the same day 2.4.0 ships 658 commits
Rivet
Rivet is shipping the complete agentic backend stack: actors, durable streams, BYOC, MCP integration, and a V8 app runtime in one month.
Scalingo
Scalingo ships routine runtime maintenance at high cadence while expanding database observability through its SDK.
See all Libreswan alternatives → · See all Sanity alternatives →
Recent activity from Libreswan and Sanity
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoSanityMCP server v2.35.4: MCP deployments now use Sanity Studio 6.14.1
- 2d agoSanityMCP server v2.35.3: Better compatibility for tool inputs
- 2d agoSanityMedia Library v2026.09.23.draft: Media Library 2026-09-23
- 2d agoSanityMCP server v2.35.2: Improved guidance for access/permissions issues and documents publishing lifecycle
- 3d agoSanitySanity Studio v6.16.0: Unknown Portable Text values no longer crash the editor, plus auth, release, and presence fixes
- 4d agoSanityMCP server v2.35.1: Clearer errors and more reliable authorization
- 1mo agoLibreswan5.4: ML-KEM 768 and RFC 9370 multiple key exchanges for IKEv2 ⚡
- 2mo agoLibreswan5.3.2: FIPS-mode daemon crash from malformed X.509 certificates
- 3mo agoLibreswan5.3.1: three CVEs and a newer-GCC compile fix
- 2y agoLibreswanIKEv1 cryptosuite defaults tightened; systemd libxz dependency dropped
- 2y agoLibreswanCompile error fix carried over from 4.13
Frequently asked questions
What is the difference between Libreswan and Sanity?
They serve adjacent needs but don't currently overlap on shipped themes. Sanity is currently shipping more aggressively (velocity 7.5 vs 6.3), with 0 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 Sanity?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Sanity is currently shipping more aggressively (velocity 7.5 vs 6.3), with 0 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 Sanity?
Top Sanity alternatives in DevOps are ranked by recent ship velocity. Browse the "Sanity alternatives" section above for the current picks, or visit /alternatives/sanity for the full list with editorial commentary on each.