GravityKit
GravityKit folds every GravityView extension into one Pro plugin.
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 | 5.0 |
| Sparks · 30d | 2 | 0 |
| Top themes | ai transport, realtime messaging, agents, mau-billing | container runtime, security, checkpoint restore, release candidate |
| Last editorial update | 21h ago | 1d ago |
| Website | — | Visit → |
What is Ably?
Ably's AI Transport hits 1.0 and plugs straight into Vercel's useChat with resumable streams.
Ably is repositioning its realtime pub/sub network as the transport layer for AI agent output. AI Transport JS 1.0 runs on ordinary Pub/Sub channels and ships adaptors for the Vercel AI SDK, OpenAI Responses API and AG-UI, plus a useChat transport that resumes a stream after a reload. It lands a week after the switch to monthly-active-user pricing and breaking SDK majors that split every client into device and server packages.
What is runc?
runc patches one restore bug across four release lines at once.
runc shipped 1.5.3, 1.4.4, 1.3.7 and 1.6.0-rc.2 on the same day, all fixing CVE-2026-119101: a crafted image could make runc restore bind-mount any host directory into a restored container, read-write. Only people who checkpoint and later restore untrusted containers as root are exposed. The 1.6.0 candidate also changes how mount destinations that start with the rootfs path are read, following the runtime spec literally.
Ably vs runc: editorial side-by-side
Ably
7.5INFRA · APIS
Ably's AI Transport hits 1.0 and plugs straight into Vercel's useChat with resumable streams.
◆ Current state
Ably is repositioning its realtime pub/sub network as the transport layer for AI agent output. AI Transport JS 1.0 runs on ordinary Pub/Sub channels and ships adaptors for the Vercel AI SDK, OpenAI Responses API and AG-UI, plus a useChat transport that resumes a stream after a reload. It lands a week after the switch to monthly-active-user pricing and breaking SDK majors that split every client into device and server packages.
◆ Where it's heading
The November releases fit one plan: split clients so MAU billing can count end users, then make the AI layer a thin adaptor on top of the same channels used for chat, presence and LiveObjects. Server-side additions in Java and JS (HTTP LiveObjects, channel pools, a Temporal plugin) point at agent backends as the intended publisher.
◆ Prediction
Expect more agent framework adaptors and server SDKs reaching AI Transport parity, with Chat and LiveObjects examples built around agents joining human conversations.
runc
5.0INFRA · APIS
runc patches one restore bug across four release lines at once.
◆ Current state
runc shipped 1.5.3, 1.4.4, 1.3.7 and 1.6.0-rc.2 on the same day, all fixing CVE-2026-119101: a crafted image could make runc restore bind-mount any host directory into a restored container, read-write. Only people who checkpoint and later restore untrusted containers as root are exposed. The 1.6.0 candidate also changes how mount destinations that start with the rootfs path are read, following the runtime spec literally.
◆ Where it's heading
The project now maintains four supported branches and backports security work to each one in lockstep, while 1.6.0 keeps trading quiet tolerance for strict spec behaviour: refused read-only configs in rc.1, literal mount paths in rc.2. Users relying on runc's old lenient handling will feel 1.6.0 more than any feature it adds.
◆ Prediction
Expect 1.6.0 final after one more candidate, with 1.3.z ending since 1.3.7 is labelled the probable last patch.
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.
Payload CMS
Payload's v4 beta.9 keeps every past image crop and raises the Node floor again.
Nautobot
Nautobot 3.3 alpha 2 adds test helpers and a cable location filter after 3.2.9's token-leak fix.
Clair
Clair 4.10 RC can read SBOMs to match Java vulnerabilities.
Shuffle
Shuffle tags builds almost daily, but the notes are empty.
KrakenD
KrakenD's community edition is shipping only dependency bumps.
Recent activity from Ably and runc
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoAblyAI Transport 1.0 makes Ably a resumable transport for AI chat ⚡
- 2d agoruncCVE-2026-119101 fix for checkpoint/restore in the 1.5 line
- 2d agoruncSecond 1.6.0 candidate: restore CVE fix, literal mount paths
- 2d agorunc1.4 line gets the restore CVE fix and cgroup v2 crash workaround
- 2d agoruncLikely final 1.3 patch carries the restore CVE fix
- 2d agoAblyJava SDK 2.1 reads and updates LiveObjects over HTTP
- 2d agoAblyJS SDK 3.1 adds channel pools and a Temporal plugin
- 4d agoAblyAbly Kafka Connector v4.2.1
- 8d agoAblyMonthly active user (MAU) pricing ⚡
- 8d agoAblyAbly Chat React UI Kit v0.4.0
- 1mo agoruncRelease candidate lifts 1024-CPU limit, removes deprecated APIs
- 1mo agoruncWorkaround for kernel bug that crashed runc on cgroup v2
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 5.0), 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 5.0), 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.