authentik
authentik 2026.8 ships: Actors, domain-joined Agents, and a push past browser-mediated SSO
Comparison · Infra & APIs
Casdoor vs Fission
A side-by-side editorial comparison of Casdoor and Fission — release velocity, themes, recent moves, and the top alternatives to consider.
Casdoor vs Fission: at a glance
What is Casdoor?
Casdoor is spending its release cadence moving auth checks from the client to the server
Casdoor is in a tight patch cadence: six tagged releases inside a week, most carrying a single commit. The substance is concentrated in identity enforcement rather than features - password rotation and MFA setup are now enforced server-side, admin updates to a user respect the column whitelist, sessions and tokens are revoked when a user is forbidden, and phone numbers are normalised before they are stored. The remainder is release plumbing and a PostgreSQL query fix.
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.
Casdoor vs Fission: editorial side-by-side
Casdoor
5.0INFRA · APIS
Casdoor is spending its release cadence moving auth checks from the client to the server
◆ Current state
Casdoor is in a tight patch cadence: six tagged releases inside a week, most carrying a single commit. The substance is concentrated in identity enforcement rather than features - password rotation and MFA setup are now enforced server-side, admin updates to a user respect the column whitelist, sessions and tokens are revoked when a user is forbidden, and phone numbers are normalised before they are stored. The remainder is release plumbing and a PostgreSQL query fix.
◆ Where it's heading
Read together, these commits describe one job: closing the gap between what the console enforces and what the backend enforces. Several of them move a check that previously lived in the UI into the server, which is the work of a project being deployed into environments that audit it. New authentication providers and integrations have thinned relative to this hardening pass.
◆ Prediction
The next releases most likely continue the same sweep - remaining endpoints where an admin or user request is trusted more than the server verifies - rather than adding a new identity provider.
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.
Alternatives to Casdoor and Fission
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 Casdoor or Fission.
Rancher
Rancher's public feed is a build-tag stream: three branches bumped the same Go image on one afternoon
Buildkite
Buildkite keeps converting hand-rolled agent workarounds into first-class CI primitives.
Cursor
Cursor's agents stop waiting to be asked - they subscribe, and they hold a goal until it's done.
incident.io
Nexus does the diagnosis; the agent is now reaching into the status page too.
Warp
Warp turned its quarter of software-factory essays into infrastructure you can buy.
See all Casdoor alternatives → · See all Fission alternatives →
Recent activity from Casdoor and Fission
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoCasdoorPostgreSQL queries on the token.user column fixed
- 3d agoCasdoorHelm chart push retries on non-fast-forward
- 3d agoCasdoorPassword update and MFA setup enforced server-side
- 3d agoCasdoorColumns whitelist respected on admin user updates
- 3d agoCasdoorPhone numbers normalised and validated before saving
- 3d agoCasdoorSessions and tokens revoked when a user is forbidden
- 2mo agoFissionFission 1.25.0-rc1 tag carries only regenerated codegen output
- 3mo agoFissionFission 1.23.0-rc1 tag carries a CI tool-version refresh
- 8mo agoFissionv1.22.0-rc2
- 9mo agoFissionFission 1.22.0-rc1 tag carries a golang.org/x/net bump
Frequently asked questions
What is the difference between Casdoor and Fission?
They serve adjacent needs but don't currently overlap on shipped themes. Casdoor is currently shipping more aggressively (velocity 5.0 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 Casdoor better than Fission?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Casdoor is currently shipping more aggressively (velocity 5.0 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 Casdoor?
Top Casdoor alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Casdoor alternatives" section above for the current picks, or visit /alternatives/casdoor for the full list with editorial commentary on each.
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.