v2.48.2

dstotijn/hettyv2.48.2Mar 25, 2026by github-actions[bot]

AI Summary

Users can now run multiple browser engines in parallel during a crawl to compare results, with the best HTML winning, utilizing engines like LightPanda and Servo.

Key Highlights

Parallel Crawl Backends feature
Race alternative browser engines (LightPanda, Servo)
Zero overhead when disabled
Custom quality validator support

New Features

Parallel backend execution
Browser engine racing
Rust API configuration

Full Release Notes

Race alternative browser engines alongside your primary crawl. Best HTML wins.

```rust
use spider::configuration::{BackendEndpoint, BackendEngine, ParallelBackendsConfig};

let mut website = Website::new("https://example.com");
website.configuration.parallel_backends = Some(ParallelBackendsConfig {
    backends: vec![BackendEndpoint {
        engine: BackendEngine::LightPanda,
        endpoint: Some("ws://127.0.0.1:9222".to_string()),
        binary_path: None,
        protocol: None,
    }],
    ..Default::default()
});
website.crawl().await;
// page.backend_source → "primary" | "lightpanda" | "servo" | "custom"
```

Features: `lightpanda`, `servo`, `parallel_backends_full`, custom backends via `BackendEngine::Custom`.

Zero overhead when disabled, anti-fingerprint jitter, auto-disable on failures, custom quality validator, full network interception parity with Chrome.