# PostHog product-1d4a5497db — Release & Upgrade Intelligence
- **Product:** PostHog (https://posthog.com)
- **Version:** product-1d4a5497db
- **Released:** Nov 14, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/posthog/updates/product-1d4a5497db/

## Executive Summary (TL;DR)
Official PostHog product update: Import opt-out lists from Customer.io. Read the publisher’s changelog for full details.