compare
Apache Solr vs Sonic
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Apache Solr | Sonic |
|---|---|---|
| Language | Java | Rust |
| Licence | Apache-2.0 | MPL-2.0 |
| Stars | 1.7k | 21k |
| Latest | releases/solr/10.0.0 | v1.10.2 |
| Last push | 2026-10-06 | 2026-10-05 |
| Release cadence | too few releases | about 2 days between releases |
| Active contributors | 40 commit authors on the default branch in the last 90 days | 5 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Elasticsearch. Alternatives to Elasticsearch →
Full replacementApache SolrAlso built on Lucene, with its own query API.
PartialSonicA lightweight index that returns document IDs only, next to the database that holds the documents.
Apache Solr
This repository publishes tags, not GitHub releases.
Sonic
- v1.10.22026-10-05Sonic v1.10.2
- v1.10.12026-09-25Sonic v1.10.1
- core-v0.4.12026-09-25Sonic core v0.4.1
- v1.10.02026-09-21Sonic v1.10.0
- client-v0.6.02026-09-21Sonic client v0.6.0
Apache Solr
unsigned The latest release, releases/solr/10.0.0, carries no signature GitHub could verify.
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Sonic
✓ signed The latest release, v1.10.2, carries a signature GitHub verified.
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