compare
Estuary Flow vs OLake
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Estuary Flow | OLake |
|---|---|---|
| Language | Rust | Go |
| Licence | Other | Apache-2.0 |
| Stars | 982 | 1.5k |
| Latest | v0.6.13 | v0.11.3 |
| Last push | 2026-10-06 | 2026-10-06 |
| Release cadence | about 22 days between releases | about 4 days between releases |
| Active contributors | 19 commit authors on the default branch in the last 90 days | 18 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Fivetran. Alternatives to Fivetran →
PartialEstuary FlowReal-time CDC and batch connectors into warehouses and other destinations.
PartialOLakeReplicates databases and Kafka into Apache Iceberg tables; few SaaS sources.
Estuary Flow
- v0.6.132026-08-10control-plane-api: fix storage-mapping suffix strip to respect path-segment boundaries
- v0.6.122026-07-23docs: surface MCP and agent skills for coding agents
- v0.6.112026-07-14runtime: periodically store primary FSMHints of V2 shards
- v0.6.102026-06-15docs/redaction: document hash salting and redactSalt override
- v0.6.92026-05-21v6.0.9
OLake
- v0.11.32026-10-05fix(iceberg): bump jackson to 2.22.3 and ignore parquet's shaded copy
- v0.11.22026-09-30feat(discover): tiered schema sampling with partial results on timeout
- v0.11.12026-09-29fix(ci): read AI review settings from secrets, rename environment to ai-code-review
- v0.11.02026-09-25feat: source type in telemetry sync completed event and more config conditions
- v0.10.12026-09-09feat: optional schema discovery and stream validation during sync
Estuary Flow
unsigned The latest release, v0.6.13, carries no signature GitHub could verify.
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OLake
✓ signed The latest release, v0.11.3, carries a signature GitHub verified.
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