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Comparison · Infra & APIs

Apache Druid vs Apereo CAS

A side-by-side editorial comparison of Apache Druid and Apereo CAS — release velocity, themes, recent moves, and the top alternatives to consider.

Apache Druid vs Apereo CAS: at a glance

FeatureApache DruidApereo CAS
SectorAnalytics, Infra & APIsInfra & APIs
Velocity score0.02.5
Sparks · 30d00
Top themesreal-time-analytics, apache-project, java-upgrade, operator-toolingidentity, sso, open-source, release-candidates
Last editorial update1h ago2mo ago
WebsiteVisit →Visit →

What is Apache Druid?

Druid 38 drops Java 17, recommends Java 25 and took longer to arrive than its predecessors

Druid 38.0.0 shipped on October 1 with over 250 changes from 37 contributors. It adds Java 25 support, drops Java 17, and introduces Historical tier aliases and a realtimeSegmentsMode query context that replaces realtimeSegmentsOnly. MSQ workers now fetch input files in the background by default, and Druid 38 is the last major that reads legacy ZSTD frames.

Read the full Apache Druid trajectory →

What is Apereo CAS?

Apereo CAS opens an 8.1 line while 8.0 is still working through release candidates.

CAS is running a long release-candidate train. The 8.0.0 line reached RC6 in late June after RC4 and RC5 in spring, and 8.1.0-RC1 has now appeared in August. A 7.3.7.1 patch in June addressed a published OIDC vulnerability on the maintenance branch. The release entries themselves carry only navigation links and contributor credits, so feature detail is not visible here.

Read the full Apereo CAS trajectory →

Apache Druid vs Apereo CAS: editorial side-by-side

Apache Druid logo
Apache Druid
ANALYTICSINFRA · APIS
0.0

Druid 38 drops Java 17, recommends Java 25 and took longer to arrive than its predecessors

◆ Current state

Druid 38.0.0 shipped on October 1 with over 250 changes from 37 contributors. It adds Java 25 support, drops Java 17, and introduces Historical tier aliases and a realtimeSegmentsMode query context that replaces realtimeSegmentsOnly. MSQ workers now fetch input files in the background by default, and Druid 38 is the last major that reads legacy ZSTD frames.

◆ Where it's heading

The release is operator-focused: tier aliases and segment-mode controls target blue/green deployments and large clusters, and background fetching and Dart prefetching chase throughput. Compatibility remains a stated part of shipping, with explicit deprecations and upgrade notes. The gap from 37.0.0 was nearly five months, against about three for the release before, so the quarterly rhythm has loosened.

◆ Prediction

A 39 release candidate is the next visible step, and removal of legacy ZSTD frame support is already announced for a future release. Timing is less certain now that the last gap ran past a quarter.

A
Apereo CAS
INFRA · APIS
2.5

Apereo CAS opens an 8.1 line while 8.0 is still working through release candidates.

◆ Current state

CAS is running a long release-candidate train. The 8.0.0 line reached RC6 in late June after RC4 and RC5 in spring, and 8.1.0-RC1 has now appeared in August. A 7.3.7.1 patch in June addressed a published OIDC vulnerability on the maintenance branch. The release entries themselves carry only navigation links and contributor credits, so feature detail is not visible here.

◆ Where it's heading

Two lines are moving at once, which suggests 8.0 is close enough to final that work has begun branching forward rather than that the RC train has stalled. The contributor lists stay small and consistent across releases - a handful of recurring maintainers - and security handling happens on the older supported branch, as it should.

◆ Prediction

An 8.0.0 final is the obvious next milestone given RC6 was three months ago and an 8.1 branch is already open. The release bodies do not describe features, so what it contains cannot be read from this feed.

Apache Druid alternatives

Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Apache Druid.

See all Apache Druid alternatives →

Apereo CAS alternatives

Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Apereo CAS.

See all Apereo CAS alternatives →

Recent activity from Apache Druid and Apereo CAS

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

  1. 1mo agoApache DruidDruid 38.0.0
  2. 1mo agoApache DruidDruid 38.0.0 release candidate 1 tagged
  3. 2mo agoApereo CASv8.1.0-RC1
  4. 4mo agoApereo CASv8.0.0-RC6
  5. 4mo agoApereo CASPatch release for a published OIDC vulnerability
  6. 5mo agoApereo CASv8.0.0-RC5
  7. 5mo agoApache DruidDruid 37.0.0
  8. 6mo agoApereo CASv8.0.0-RC4
  9. 6mo agoApache Druiddruid-37.0.0-rc1
  10. 8mo agoApache DruidDruid 36.0.0
  11. 9mo agoApache Druiddruid-36.0.0-rc1

Frequently asked questions

What is the difference between Apache Druid and Apereo CAS?

They serve adjacent needs but don't currently overlap on shipped themes. Apereo CAS is currently shipping more aggressively (velocity 2.5 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 Apache Druid better than Apereo CAS?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Apereo CAS is currently shipping more aggressively (velocity 2.5 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 Apache Druid?

Top Apache Druid alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Apache Druid alternatives" section above for the current picks, or visit /alternatives/apache-druid 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.