# PostHog product-c266921cc7 — Release & Upgrade Intelligence
- **Product:** PostHog (https://posthog.com)
- **Version:** product-c266921cc7
- **Released:** Oct 02, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/posthog/updates/product-c266921cc7/

## Executive Summary (TL;DR)
Official PostHog product update: Pass $anon_distinct_id with backend feature flag calls. Read the publisher’s changelog for full details.