Thanos
Thanos is rebuilding Receive around multi-tenancy, and shipping it through a stuttering RC train.
Comparison · Infra & APIs
Jaeger vs Apereo CAS
A side-by-side editorial comparison of Jaeger and Apereo CAS — release velocity, themes, recent moves, and the top alternatives to consider.
Jaeger vs Apereo CAS: at a glance
What is Jaeger?
Jaeger folds its MCP server into the query service and drops Elasticsearch 6
Jaeger's 2.x line is releasing roughly monthly, and two threads dominate. The storage layer is being modernised and pruned — Elasticsearch 6 support removed, rotation and index-cleaner feature gates promoted to beta, ClickHouse gaining TLS and analyzer fixes, configurable max trace duration. The other thread is the query surface: a lightweight trace-summaries endpoint added in 2.19 then given a native Elasticsearch implementation in 2.20, and the MCP extension merged into the query extension.
What is Apereo CAS?
CAS 8.0 is six release candidates deep with notes that describe nothing
Apereo CAS is working through a long v8.0.0 release-candidate series, reaching RC6 by late June 2026. The candidates are published with a fixed template — links to release notes, documentation, commit log and policies, plus contributor thanks — and no description of what each one changed, so the substance of the 8.0 cycle is not readable from the releases themselves. The one entry with real content is v7.3.7.1, a patch pointing at a published OIDC vulnerability advisory.
Jaeger vs Apereo CAS: editorial side-by-side
Jaeger
3.8INFRA · APIS
Jaeger folds its MCP server into the query service and drops Elasticsearch 6
◆ Current state
Jaeger's 2.x line is releasing roughly monthly, and two threads dominate. The storage layer is being modernised and pruned — Elasticsearch 6 support removed, rotation and index-cleaner feature gates promoted to beta, ClickHouse gaining TLS and analyzer fixes, configurable max trace duration. The other thread is the query surface: a lightweight trace-summaries endpoint added in 2.19 then given a native Elasticsearch implementation in 2.20, and the MCP extension merged into the query extension.
◆ Where it's heading
Jaeger is treating machine consumption of traces as a first-class query path rather than an add-on. Merging jaegermcp into jaegerquery means the MCP surface ships wherever query ships, and trace summaries give both the UI and any agent a cheap way to scan results before pulling full traces. On storage, the direction is fewer supported backends maintained better, with ClickHouse steadily gaining parity.
◆ Prediction
Expect the trace-summaries path to become the default for search across storage backends, and further ClickHouse feature work as the Elasticsearch surface is trimmed rather than extended.
Apereo CAS
0.0INFRA · APIS
CAS 8.0 is six release candidates deep with notes that describe nothing
◆ Current state
Apereo CAS is working through a long v8.0.0 release-candidate series, reaching RC6 by late June 2026. The candidates are published with a fixed template — links to release notes, documentation, commit log and policies, plus contributor thanks — and no description of what each one changed, so the substance of the 8.0 cycle is not readable from the releases themselves. The one entry with real content is v7.3.7.1, a patch pointing at a published OIDC vulnerability advisory.
◆ Where it's heading
The observable pattern is a maintained v7 line receiving security patches while v8 advances through candidates at roughly monthly intervals with a small, stable set of contributors. Beyond that, the release notes are too thin to establish what 8.0 changes for operators, which matters for an identity product where upgrade planning depends on knowing exactly what moved.
◆ Prediction
Expect the RC series to continue at a monthly cadence toward an 8.0 release, and the v7 line to keep receiving security patches; what 8.0 actually delivers cannot be predicted from these entries.
Alternatives to Jaeger and Apereo CAS
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 Jaeger or Apereo CAS.
webpack
webpack is absorbing its own loader ecosystem — TypeScript, CSS and HTML now build natively.
LibreELEC
LibreELEC's changelog stops dead at the 12.0 release in May 2024
Node-RED
Node-RED 5.0 rebuilt the editor, and the patches since are settling it in
Biome
Biome's patch train is really a type-aware linting project in disguise
Casdoor
Ten releases in 48 hours, nearly all of them tightening who can do what, for how long
See all Jaeger alternatives → · See all Apereo CAS alternatives →
Recent activity from Jaeger and Apereo CAS
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 14d agoJaegerMCP merges into the query service; Elasticsearch 6 support removed ⚡
- 1mo agoApereo CASv8.0.0-RC6
- 1mo agoApereo CASPatch release for a published OIDC vulnerability
- 2mo agoJaegerLightweight trace-summaries endpoint arrives in the v3 API
- 2mo agoApereo CASv8.0.0-RC5
- 2mo agoJaegerHeader forwarding to storage backends and UI base-path autodetection
- 3mo agoApereo CASv8.0.0-RC4
- 4mo agoJaegerClock-skew and jitter fixes; metrics storage exposed to the UI
- 4mo agoJaegerLegacy remote-sampling response format removed; Go 1.25.7 required
- 5mo agoJaegerPatch: default span kind in operations endpoint
Frequently asked questions
What is the difference between Jaeger and Apereo CAS?
They serve adjacent needs but don't currently overlap on shipped themes. Jaeger is currently shipping more aggressively (velocity 3.8 vs 0.0), 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 Jaeger better than Apereo CAS?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Jaeger is currently shipping more aggressively (velocity 3.8 vs 0.0), 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 Jaeger?
Top Jaeger alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Jaeger alternatives" section above for the current picks, or visit /alternatives/jaeger for the full list with editorial commentary on each.
What are the best alternatives to Apereo CAS?
Top Apereo CAS alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Apereo CAS alternatives" section above for the current picks, or visit /alternatives/apereo-cas for the full list with editorial commentary on each.