# PostHog product-99dff734a9 — Release & Upgrade Intelligence
- **Product:** PostHog (https://posthog.com)
- **Version:** product-99dff734a9
- **Released:** Jan 02, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/posthog/updates/product-99dff734a9/

## Executive Summary (TL;DR)
Official PostHog product update: Add custom goal lines to retention insights. Read the publisher’s changelog for full details.