Daytona
Ten releases in a month, all pointed at making agent sandboxes safe to run in production.
Comparison · Infra & APIs
Ably vs Quay
A side-by-side editorial comparison of Ably and Quay — release velocity, themes, recent moves, and the top alternatives to consider.
Ably vs Quay: at a glance
| Feature | Ably | Quay |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 6.3 | 5.0 |
| Sparks · 30d | 1 | 0 |
| Top themes | realtime-infrastructure, ai-agents, durable-execution, liveobjects | container-registry, cve-remediation, ssrf-hardening, backports |
| Last editorial update | 1d ago | 1h ago |
| Website | — | Visit → |
What is Ably?
Ably is building an agent transport layer on its realtime core, shipping AI SDK versions every ten days.
Two release trains run side by side in this feed. The AI Transport SDK is moving fast and pre-1.0 — durable execution in 0.5.0, mid-run steering in 0.6.0, an OpenAI Responses codec in 0.7.0, each roughly ten days apart and each carrying breaking changes. The Pub/Sub and Java SDKs move at a steadier pace, working through LiveObjects reach, React and React Native support, and now connectivity fallbacks.
What is Quay?
Quay ships nothing but CVE remediation, mirrored across two supported branches
Every entry in Quay's recent history is a security maintenance release, and they arrive as coordinated pairs — a 3.10.x and a 3.12.x tag cut hours apart carrying the same fixes cherry-picked to each branch. The content is dependency remediation against tracked advisories plus two SSRF hardening fixes, one in proxy cache upstream registry configuration and one in repository mirroring sources. No feature work appears in the window.
Ably vs Quay: editorial side-by-side
Ably
6.3INFRA · APIS
Ably is building an agent transport layer on its realtime core, shipping AI SDK versions every ten days.
◆ Current state
Two release trains run side by side in this feed. The AI Transport SDK is moving fast and pre-1.0 — durable execution in 0.5.0, mid-run steering in 0.6.0, an OpenAI Responses codec in 0.7.0, each roughly ten days apart and each carrying breaking changes. The Pub/Sub and Java SDKs move at a steadier pace, working through LiveObjects reach, React and React Native support, and now connectivity fallbacks.
◆ Where it's heading
Ably is treating agent conversations as a transport problem — sessions, resumability, and multi-client reconciliation — rather than as a model-integration problem, and the primitives shipping in AI Transport keep pointing that way. The Pub/Sub line is being pulled along behind it: LiveObjects path APIs and React hooks are the state layer those agent sessions need. The pre-1.0 SDK will keep breaking as the shape settles, which is a reasonable trade while the category is unsettled.
◆ Prediction
Expect AI Transport to keep adding provider codecs beyond OpenAI Responses and to approach an API freeze as breaking changes get more expensive. LiveObjects support should continue spreading across the language SDKs, following the Java path-based API with other platforms.
Quay
5.0INFRA · APIS
Quay ships nothing but CVE remediation, mirrored across two supported branches
◆ Current state
Every entry in Quay's recent history is a security maintenance release, and they arrive as coordinated pairs — a 3.10.x and a 3.12.x tag cut hours apart carrying the same fixes cherry-picked to each branch. The content is dependency remediation against tracked advisories plus two SSRF hardening fixes, one in proxy cache upstream registry configuration and one in repository mirroring sources. No feature work appears in the window.
◆ Where it's heading
This is a registry in pure maintenance posture on its long-lived branches, with the release process itself automated down to changelog-bump commits. The recurring SSRF fixes across proxy cache and mirroring suggest a deliberate sweep through the code paths that fetch from upstream registries rather than isolated reports. Feature development, if it is happening, is landing on a branch this feed does not cover.
◆ Prediction
Expect the paired-branch cadence to continue at roughly the rate advisories land against the bundled Python and npm dependencies. The SSRF sweep looks close to complete, having now covered both proxy cache and mirroring.
Alternatives to Ably and Quay
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 Quay.
Dashy
After the 4.5.0 drag-and-drop release, Dashy has settled into translations and dependency patches
Jackett
Jackett ships daily, and every release is tracker definitions chasing sites that moved
Unleash
Feature flags repositioned as the runtime kill switch for AI agents writing your code.
Kubernetes
The blog has become a teaching channel, with the real releases arriving as Gateway API and deprecation notices.
ToolJet
ToolJet runs two release trains at once, and neither has changed direction in months
Recent activity from Ably and Quay
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 13h agoQuayv3.12.21 patches six advisories and blocks SSRF in mirroring
- 15h agoQuayv3.10.25 carries the same advisory fixes to the 3.10 branch
- 1d agoAblyPub/Sub JS SDK v2.27.0: Fallback for networks that block WebSockets
- 11d agoAblyAI Transport JS SDK v0.7.0: OpenAI Responses codec ⚡
- 18d agoAblyPub/Sub JS SDK v2.26.0: React hook for LiveObjects
- 20d agoQuayv3.12.20 bumps Go and blocks SSRF in proxy cache config
- 21d agoAblyAI Transport JS SDK v0.6.0: Mid-run steering
- 25d agoAblyPub/Sub JS SDK v2.25.0: Push notifications for React Native
- 26d agoQuayv3.10.24 backports the Go bump and proxy cache SSRF fix
- 29d agoAblyJava SDK v1.8.0: Support LiveObjects Path based API
- 1mo agoQuayv3.10.23 clears PyJWT, urllib3 and shell-quote advisories
- 1mo agoQuayv3.12.19 clears the same four dependency advisories
Frequently asked questions
What is the difference between Ably and Quay?
They serve adjacent needs but don't currently overlap on shipped themes. Ably 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 Ably better than Quay?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Ably 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 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 Quay?
Top Quay alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Quay alternatives" section above for the current picks, or visit /alternatives/quay for the full list with editorial commentary on each.