compare
OpenSearch vs Security Onion
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | OpenSearch | Security Onion |
|---|---|---|
| Language | Java | Shell |
| Licence | Apache-2.0 | Other |
| Stars | 14k | 4.9k |
| Latest | 3.9.0 | 3.3.0-20260911 |
| Last push | 2026-10-06 | 2026-10-06 |
| Release cadence | about 43 days between releases | about 24 days between releases |
| Active contributors | 104 commit authors on the default branch in the last 90 days | 8 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Splunk. Alternatives to Splunk →
PartialOpenSearchLog search and analytics with OpenSearch Dashboards.
PartialSecurity OnionNetwork and host security monitoring with alerting, hunting and case management, not general log analytics.
OpenSearch
- 3.9.02026-09-29Compatible with OpenSearch and OpenSearch Dashboards version 3.9.0
- 3.8.02026-08-05Compatible with OpenSearch and OpenSearch Dashboards version 3.8.0
- 2.19.62026-07-06Compatible with OpenSearch and OpenSearch Dashboards version 2.19.6
- 3.7.02026-06-09Compatible with OpenSearch and OpenSearch Dashboards version 3.7.0
- 3.6.02026-04-07Compatible with OpenSearch and OpenSearch Dashboards version 3.6.0
Security Onion
- 3.3.0-202609112026-09-11Add x86-64-v3 CPU pre-flight check to soup
- 3.3.0-202609082026-09-08Bump version from 3.2.0 to 3.3.0
- 3.2.0-202607292026-07-29Bump version from 3.1.0 to 3.2.0
- 3.1.0-202605282026-05-28Add version number to HOTFIX file
- 3.1.0-202605212026-05-21Version Bump
OpenSearch
✓ signed The latest release, 3.9.0, carries a signature GitHub verified.
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Security Onion
✓ signed The latest release, 3.3.0-20260911, carries a signature GitHub verified.
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