compare
HAProxy vs Sōzu
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | HAProxy | Sōzu |
|---|---|---|
| Language | C | Rust |
| Licence | Other | AGPL-3.0 |
| Stars | 6.9k | 3.7k |
| Latest | v3.4.0 | 2.3.2 |
| Last push | 2026-10-18 | 2026-10-18 |
| Release cadence | too few releases | about 24 days between releases |
| Active contributors | 18+ commit authors on the default branch in the last 90 days | 4 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Sōzu replaces HAProxy. Alternatives to HAProxy →
PartialHot-reconfigurable HTTP and TCP reverse proxy written in Rust, with fewer features.
HAProxy
This repository publishes tags, not GitHub releases.
Sōzu
- 2.3.22026-10-18BREAKING (library API) — feat(health-check): probe port. HealthCheckConfig gains an
- 2.3.12026-10-14A worker whose HTTP, HTTPS, TCP or UDP proxy refused a frontend addition or
- 2.3.02026-10-14HTTPS listeners support mutual TLS, trusted client CAs, certificate revocation
- 2.2.12026-08-28Patch release: the main process validates listeners and HTTP/HTTPS
- 2.2.02026-07-16Minor release: TCP passthrough routing by TLS SNI + ALPN, HTTP/1
HAProxy
unsigned The latest release, v3.4.0, carries no signature GitHub could verify.
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Sōzu
✓ signed The latest release, 2.3.2, carries a signature GitHub verified.
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