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Comparison · DevOps

Rivet vs SimpleSAMLphp

A side-by-side editorial comparison of Rivet and SimpleSAMLphp — release velocity, themes, recent moves, and the top alternatives to consider.

Rivet vs SimpleSAMLphp: at a glance

FeatureRivetSimpleSAMLphp
SectorDevOpsDevOps
Velocity score6.35.0
Sparks · 30d10
Top themesactors, rust, storage engine, s3saml, identity, security-releases, maintenance
Last editorial update16h ago2mo ago
Website—Visit →

What is Rivet?

Rivet's Rust SDK for Actors is generally available.

Rivet has spent two months building infrastructure for long-lived actors and AI agents: BYOC, OpenTelemetry tracing, actor-scoped JWTs and agentOS Hosted VMs. The 3.0 Preview made Rivet a single stateless binary on S3. The Rust SDK for Rivet Actors is now generally available, with SQLite, WebSockets, cron and OpenTelemetry built in.

Read the full Rivet trajectory →

What is SimpleSAMLphp?

Two maintenance branches, patched in lockstep, with release notes that say nothing but a checksum.

SimpleSAMLphp is running parallel 2.4 and 2.5 maintenance branches and patching both whenever a fix lands. The August sequence is representative: a 2.4.9 bugfix, a coordinated 2.5.3 security drop re-tagged hours later as 2.5.3.1, and now a 2.4.10 bugfix closing the month on the older branch. Release bodies carry no changelog text at all, just a download link, an upgrade-notes pointer and SHA256 checksums, so the feed tells operators when to patch but never what changed.

Read the full SimpleSAMLphp trajectory →

Rivet vs SimpleSAMLphp: editorial side-by-side

R
Rivet
DEVOPS
6.3

Rivet's Rust SDK for Actors is generally available.

◆ Current state

Rivet has spent two months building infrastructure for long-lived actors and AI agents: BYOC, OpenTelemetry tracing, actor-scoped JWTs and agentOS Hosted VMs. The 3.0 Preview made Rivet a single stateless binary on S3. The Rust SDK for Rivet Actors is now generally available, with SQLite, WebSockets, cron and OpenTelemetry built in.

◆ Where it's heading

Rivet is widening who can build on its actor model while 3.0 matures: a Rust SDK GA lets performance-sensitive teams use it without a TypeScript layer. The platform direction remains S3-only infrastructure for stateful workloads.

◆ Prediction

Expect 3.0 to move toward a stable release and more SDK languages. The entries don't show a 3.0 GA date.

S5.0

Two maintenance branches, patched in lockstep, with release notes that say nothing but a checksum.

◆ Current state

SimpleSAMLphp is running parallel 2.4 and 2.5 maintenance branches and patching both whenever a fix lands. The August sequence is representative: a 2.4.9 bugfix, a coordinated 2.5.3 security drop re-tagged hours later as 2.5.3.1, and now a 2.4.10 bugfix closing the month on the older branch. Release bodies carry no changelog text at all, just a download link, an upgrade-notes pointer and SHA256 checksums, so the feed tells operators when to patch but never what changed.

◆ Where it's heading

This is maintenance cadence, not product development, and the shape of it is stable enough to predict. Security issues get simultaneous twin tags across both supported branches; everything else lands as a branch-local bugfix point, alternating between 2.4 and 2.5 every few weeks. The only release in the window that documented its own content was v2.4.6/v2.5.1 in May, which listed three GHSA advisories — the exception that shows the notes could carry detail and normally do not.

◆ Prediction

Expect the alternation to continue, with the next paired 2.4.x and 2.5.x tags arriving together whenever an advisory lands and content again deferred to the external changelog.

Alternatives to Rivet and SimpleSAMLphp

Other DevOps 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 Rivet or SimpleSAMLphp.

See all Rivet alternatives → · See all SimpleSAMLphp alternatives →

Recent activity from Rivet and SimpleSAMLphp

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 4d agoRivetRust SDK for Rivet Actors Is Now Generally Available
  2. 15d agoRivetIntroducing Rivet 3.0 Preview ⚡
  3. 29d agoRivetIntroducing agentOS 0.4 & Hosted VMs
  4. 1mo agoRivetIntroducing Pi Durable for Rivet
  5. 1mo agoRivetReplacing Our Message Broker with... S3? ⚡
  6. 1mo agoRivetIntroducing Pi 1.0 for Rivet
  7. 2mo agoSimpleSAMLphpBugfix release on the 2.4 maintenance branch
  8. 3mo agoSimpleSAMLphpSecurity release on the 2.5 branch (re-tagged)
  9. 3mo agoSimpleSAMLphpSecurity release on the 2.5 branch
  10. 3mo agoSimpleSAMLphpBugfix release on the 2.4 maintenance branch
  11. 4mo agoSimpleSAMLphpBugfix release on the 2.4 maintenance branch
  12. 5mo agoSimpleSAMLphpBugfix release on the 2.5 branch

Frequently asked questions

What is the difference between Rivet and SimpleSAMLphp?

They serve adjacent needs but don't currently overlap on shipped themes. Rivet 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 Rivet better than SimpleSAMLphp?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Rivet 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 DevOps products to evaluate alongside.

What are the best alternatives to Rivet?

Top Rivet alternatives in DevOps are ranked by recent ship velocity. Browse the "Rivet alternatives" section above for the current picks, or visit /alternatives/rivet for the full list with editorial commentary on each.

What are the best alternatives to SimpleSAMLphp?

Top SimpleSAMLphp alternatives in DevOps are ranked by recent ship velocity. Browse the "SimpleSAMLphp alternatives" section above for the current picks, or visit /alternatives/simplesamlphp for the full list with editorial commentary on each.