NetBird
NetBird's second v0.82 candidate keeps the MySQL removal and deprecates Rosenpass.
Comparison · Infra & APIs
Fission vs Hatchet
A side-by-side editorial comparison of Fission and Hatchet — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:serverless
Fission vs Hatchet: at a glance
What is Fission?
Fission's release feed carries only RC tags, and none of them say what shipped
Every entry here is a release candidate — v1.22.0-rc1 and rc2, v1.23.0-rc1, v1.25.0-rc1 — with no final release appearing between them, and the version sequence skips 1.24 entirely. The bodies are whatever the tagging commit said, so what reaches this feed is a dependabot bump, a CLI tool-version refresh, a codegen sync explicitly labelled as having no functional change, and one entry that is nothing but links to an external release-highlights page. The actual release notes live on the project's documentation site, not here.
What is Hatchet?
Hatchet takes durable tasks serverless, with handlers for Cloudflare Workers, Vercel and Node.
Hatchet's new @hatchet-dev/serverless 0.1.0 runs tasks on Cloudflare Workers, Vercel and Node. An in-engine operator delivers them by signed POST or by an invocation websocket that also carries durable sleeps, waits and child runs. Around it, the engine shipped three patches in a day: DAG replays no longer take an advisory lock, worker shutdown now waits for durable tasks, and status queries use partition pruning. The API now declares 429 with Retry-After on every authenticated call.
Fission vs Hatchet: editorial side-by-side
Fission
0.0INFRA · APIS
Fission's release feed carries only RC tags, and none of them say what shipped
◆ Current state
Every entry here is a release candidate — v1.22.0-rc1 and rc2, v1.23.0-rc1, v1.25.0-rc1 — with no final release appearing between them, and the version sequence skips 1.24 entirely. The bodies are whatever the tagging commit said, so what reaches this feed is a dependabot bump, a CLI tool-version refresh, a codegen sync explicitly labelled as having no functional change, and one entry that is nothing but links to an external release-highlights page. The actual release notes live on the project's documentation site, not here.
◆ Where it's heading
What can be read from these tags is infrastructure maintenance rather than product direction: Go dependency updates, helm and kind and skaffold and cosign version refreshes, and regenerated swagger and applyconfiguration files kept in sync with CEL and webhook validation comments in the core API types. That last one is the only entry hinting at anything structural — CEL-based validation on the API types implies declarative validation moving into the CRDs — but the commit itself changes only generated output.
◆ Prediction
This feed does not carry enough to predict product direction; until final releases or their notes appear here rather than only candidate tags, any read of where Fission is heading would be guesswork.
Hatchet
6.3INFRA · APIS
Hatchet takes durable tasks serverless, with handlers for Cloudflare Workers, Vercel and Node.
◆ Current state
Hatchet's new @hatchet-dev/serverless 0.1.0 runs tasks on Cloudflare Workers, Vercel and Node. An in-engine operator delivers them by signed POST or by an invocation websocket that also carries durable sleeps, waits and child runs. Around it, the engine shipped three patches in a day: DAG replays no longer take an advisory lock, worker shutdown now waits for durable tasks, and status queries use partition pruning. The API now declares 429 with Retry-After on every authenticated call.
◆ Where it's heading
Until now, running Hatchet meant running long-lived workers. The serverless package removes that requirement, so durable execution can run where JavaScript teams already deploy. The engine work points the same way: rate limits declared in the spec, safer worker acks, cheaper status queries. Patch cadence is still very high, often several engine tags a day, and much of it fixes durable-task edge cases.
◆ Prediction
Expect quick 0.1.x serverless releases as early users hit edge cases on each platform, and possibly matching Python handlers. More engine patches on durable-task shutdown and replay are likely.
Alternatives to Fission and Hatchet
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 Fission or Hatchet.
GitHub
At Universe, GitHub folds Copilot into Enterprise seats and lets Copilot Fusion pick the model.
incident.io
incident.io's agent now runs your team's own tools, with a human approval before any change.
Apache Airflow
Airflow 3.4 reaches its first release candidate, a week after the 10-20 provider wave.
Redocly
Redocly's reunite.agent gets per-duty cron schedules, rules and source repos.
Jackett
Jackett ships a daily build to keep hundreds of torrent indexers working as sites move and close.
See all Fission alternatives → · See all Hatchet alternatives →
Recent activity from Fission and Hatchet
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 21h agoHatchetHatchet v0.115.0: contributor list update, no product notes
- 22h agoHatchetHatchet v0.114.15 fixes migration deadlocks
- 1d agoHatchetHatchet v0.114.14 builds its own continuous aggregates
- 1d agoHatchetHatchet v0.114.13 quiets noisy DAG operator errors
- 1d agoHatchetPython SDK 1.43.2 parses 429 rate-limit errors
- 1d agoHatchetHatchet v0.114.12 adds a Concurrency dashboard page
- 4mo agoFissionFission 1.25.0-rc1 tag carries only regenerated codegen output
- 5mo agoFissionFission 1.23.0-rc1 tag carries a CI tool-version refresh
- 10mo agoFissionv1.22.0-rc2
- 0y agoFissionFission 1.22.0-rc1 tag carries a golang.org/x/net bump
Frequently asked questions
What is the difference between Fission and Hatchet?
Both compete on the same themes — serverless — within Infra & APIs. Hatchet is currently shipping more aggressively (velocity 6.3 vs 0.0), 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 Fission better than Hatchet?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Hatchet is currently shipping more aggressively (velocity 6.3 vs 0.0), with 0 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 Fission?
Top Fission alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Fission alternatives" section above for the current picks, or visit /alternatives/fission for the full list with editorial commentary on each.
What are the best alternatives to Hatchet?
Top Hatchet alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Hatchet alternatives" section above for the current picks, or visit /alternatives/hatchet for the full list with editorial commentary on each.