# PostHog Evaluate complete AI sessions

- Product: PostHog (https://whatsnew.fyi/product/posthog)
- Vendor: PostHog
- Date: 2026-08-13
- Original notes: https://posthog.com/changelog?id=2925
- Permalink: https://whatsnew.fyi/product/posthog/releases/2026-08-13-evaluate-complete-ai-sessions

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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[AI Observability](https://posthog.com/docs/ai-observability) evaluations can now run against an entire session, not just an individual trace. Review session-level results in the session view and eval…

- **added** — AI Observability evaluations can now run against an entire session, not just an individual trace
- **added** — Review session-level evaluation results in the session view