# Changelog of URL Retrieval Preflight (`vincesoft/url-retrieval-preflight`) Actor

- **URL**: https://apify.com/vincesoft/url-retrieval-preflight/changelog.md
- **Full Actor documentation**: https://apify.com/vincesoft/url-retrieval-preflight.md

## Changelog

### 2026-09-21

- Replace inherited base-image Node dependencies with the repository's locked production dependencies.

### 0.1.1

- GET-sniff ambiguous generic XML media types so RSS and Atom feeds are not misclassified as plain XML.
- Clarified Store copy, published a schema-valid output example, and aligned the live example input and SEO metadata with the Actor contract.

### 0.1.0

- Initial deterministic URL Retrieval Preflight implementation.
- HEAD-first probing with a bounded 64 KiB GET sniff fallback (405/501, missing content type, HTML pages).
- Nine stable retrieval-strategy recommendations with explicit evidence and no opaque scores.
- SSRF-safe HTTPS probing, redirect-chain provenance, URL query redaction, and structured machine errors.
- Required GET probe failures remain free instead of producing a billable HEAD-only guess.
- Shared run-wide request budgets, content-type-less SPA detection, strict output schemas, and content hashes.