Resend
Resend exposes webhooks as a fully programmable surface — including MCP server support — while completing API parity across broadcast management.
Comparison · Infra & APIs
Ably vs runc
A side-by-side editorial comparison of Ably and runc — release velocity, themes, recent moves, and the top alternatives to consider.
Ably vs runc: at a glance
| Feature | Ably | runc |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 7.5 | 2.5 |
| Sparks · 30d | 2 | 0 |
| Top themes | liveobjects, ai-transport-sdk, realtime-state-sync, durable-agents | container runtime, support policy, cve coordination, multi-branch |
| Last editorial update | 3d ago | 1mo ago |
| Website | — | Visit → |
What is Ably?
Ably ships LiveObjects as production-ready and expands its AI Transport SDK to cover Temporal durable workflows.
Ably is shipping simultaneously across infrastructure SDKs and AI-specific capabilities. LiveObjects — a real-time state sync layer for nested maps and counters — graduated from experimental to production-stable in the Java and Cocoa SDKs this month, with path-based access and resilient subscriptions that survive underlying object replacement. The AI Transport SDK gained Temporal durable-workflow support and OpenAI Responses API streaming. On the infrastructure side, the .NET SDK reduces reconnect latency from 120s to ~25s and the Terraform provider got a major maturity pass with moderation rules and a config importer.
What is runc?
runc now publishes an end-of-life calendar, and three branches shipped the same CVE fix in two days.
1.5.0 in June was the first stable release of the 1.5.z series and the third under runc's formal release and support policy: 1.2.z and earlier are unsupported, 1.3.z receives only high-severity CVE fixes until the end of October 2026, and 1.4.z is limited to security and significant bugfixes. A month later 1.5.1 fixed a real-world regression — the maskPaths optimisation from 1.5.0-rc.3 broke tmpfs mounts with nr_inodes=1 on Ubuntu 20.04 kernels. In mid-June, CVE-2026-41579 was fixed simultaneously across 1.3.6, 1.4.3 and 1.5.0-rc.3 and released with no embargo.
Ably vs runc: editorial side-by-side
Ably
7.5INFRA · APIS
Ably ships LiveObjects as production-ready and expands its AI Transport SDK to cover Temporal durable workflows.
◆ Current state
Ably is shipping simultaneously across infrastructure SDKs and AI-specific capabilities. LiveObjects — a real-time state sync layer for nested maps and counters — graduated from experimental to production-stable in the Java and Cocoa SDKs this month, with path-based access and resilient subscriptions that survive underlying object replacement. The AI Transport SDK gained Temporal durable-workflow support and OpenAI Responses API streaming. On the infrastructure side, the .NET SDK reduces reconnect latency from 120s to ~25s and the Terraform provider got a major maturity pass with moderation rules and a config importer.
◆ Where it's heading
The direction is Ably as AI agent infrastructure. LiveObjects' own documentation positions it explicitly for 'AI agents, live configurations, and collaborative experiences.' The AI Transport SDK is a purpose-built layer for agentic workflows — durable sessions, multi-turn conversations, tool execution — layered on Ably's realtime primitives. This is a deliberate expansion from realtime messaging platform into the transport layer that agents run on.
◆ Prediction
The AI Transport SDK will add more model provider codecs — the OpenAI Responses integration suggests Anthropic or Gemini support is next. LiveObjects needs to reach stable across remaining SDKs (Python, .NET) before the feature can be adopted uniformly.
runc
2.5INFRA · APIS
runc now publishes an end-of-life calendar, and three branches shipped the same CVE fix in two days.
◆ Current state
1.5.0 in June was the first stable release of the 1.5.z series and the third under runc's formal release and support policy: 1.2.z and earlier are unsupported, 1.3.z receives only high-severity CVE fixes until the end of October 2026, and 1.4.z is limited to security and significant bugfixes. A month later 1.5.1 fixed a real-world regression — the maskPaths optimisation from 1.5.0-rc.3 broke tmpfs mounts with nr_inodes=1 on Ubuntu 20.04 kernels. In mid-June, CVE-2026-41579 was fixed simultaneously across 1.3.6, 1.4.3 and 1.5.0-rc.3 and released with no embargo.
◆ Where it's heading
The project is behaving like infrastructure with a contract. Publishing dated support windows and shipping a coordinated fix across every live branch on the same day is the operating posture of a component that sits under every container on a host, where operators need to know what they are still entitled to. The CVE itself is instructive: a /dev symlink escape in the same family as three earlier CVEs, found by re-auditing the rootfs preparation code that had been hardened before.
◆ Prediction
1.5.0's notes state that a 1.6.0 is expected in late October 2026, which is also when 1.3.z support ends — so the next milestone is that pairing. Expect 1.5.z patches until then.
Alternatives to Ably and runc
Other Infra & APIs 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 Ably or runc.
Redocly
Redocly's Reunite ships PR change summaries and visual review controls as its GitOps doc workflow accelerates.
Prowler
Prowler ships production FedRAMP 20x frameworks and AI-native finding triage in back-to-back releases.
Webmin
Virtualmin 8.2 ships per-domain container management as Webmin extends into cloud-native hosting.
Jackett
Jackett ships daily tracker upkeep — domain rotations, category fixes, and occasional new engines.
Buildkite
Agent v4's clean slate plus a VS Code extension and expanding MCP server position Buildkite for agent-orchestrated CI.
Recent activity from Ably and runc
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 4d agoAbly.NET SDK cuts reconnection wait from 120s to ~25s, corrects connection state edge cases
- 10d agoAblyJava SDK v1.8.1: LiveObjects Stable Release ⚡
- 13d agoAblyTerraform Provider adds moderation rules, data sources, and config importer tool
- 18d agoAblyCocoa SDK v1.4.0: LiveObjects stable release
- 28d agoAblyAbly-js v2.28.0: end to end encryption for annotation data payloads
- 28d agoAblyAI Transport JS SDK v0.8.0: Temporal plugin and Vercel AI SDK v7 support ⚡
- 2mo agorunctmpfs regression on Ubuntu 20.04 kernels fixed
- 3mo agoruncrunc 1.5.0 stable, with dated support windows for older branches
- 3mo agoruncCVE-2026-41579: /dev symlink host write access fixed
- 3mo agoruncRelease candidate carrying the CVE-2026-41579 fix
- 3mo agoruncCVE-2026-41579 fix backported to the 1.4 branch
- 5mo agoruncBuild fixes and seccomp WaitKillableRecv support
Frequently asked questions
What is the difference between Ably and runc?
They serve adjacent needs but don't currently overlap on shipped themes. Ably is currently shipping more aggressively (velocity 7.5 vs 2.5), with 2 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 Ably better than runc?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Ably is currently shipping more aggressively (velocity 7.5 vs 2.5), with 2 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Ably?
Top Ably alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Ably alternatives" section above for the current picks, or visit /alternatives/ably for the full list with editorial commentary on each.
What are the best alternatives to runc?
Top runc alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "runc alternatives" section above for the current picks, or visit /alternatives/runc for the full list with editorial commentary on each.