# PostHog product-ca9aa4f6dc — Release & Upgrade Intelligence
- **Product:** PostHog (https://posthog.com)
- **Version:** product-ca9aa4f6dc
- **Released:** Apr 17, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/posthog/updates/product-ca9aa4f6dc/

## Executive Summary (TL;DR)
Official PostHog product update: Sync opt-outs to Customer.io. Read the publisher’s changelog for full details.