# PostHog Set trend chart y-axis ranges

- Product: PostHog (https://whatsnew.fyi/product/posthog)
- Vendor: PostHog
- Date: 2026-08-20
- Original notes: https://posthog.com/changelog?id=2952
- Permalink: https://whatsnew.fyi/product/posthog/releases/2026-08-20-set-trend-chart-y-axis-ranges

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[Product Analytics](https://posthog.com/docs/product-analytics) trend charts can use a custom Y-axis range. Set the bounds when the default scale makes the change you care about hard to see.

- **added** — Trend charts in Product Analytics can now use a custom Y-axis range to set the bounds when the default scale makes changes hard to see