Add changelog for updated date range limits (#2277)

* Add changelog for updated date range limits

This changelog outlines the updated date range guardrails for reports using 'All Events' and Line/Column Charts, including maximum date ranges for different units and recommendations for users.

* Enhance description for date range guardrails

* use relative link

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Co-authored-by: myronkaifung <97630035+myronkaifung@users.noreply.github.com>

Author: Tofufu

pages/changelogs/2025-12-17-date-range-limits.mdx

@@ -0,0 +1,32 @@
+---
+title: "Updated Date Range Guardrails for 'All Events' and Line & Column Charts"
+slug: "changelog-2025-12-17-date-range-limits"
+hidden: false
+createdAt: "2025-12-17T10:00:00.000Z"
+updatedAt: "2025-12-17T10:00:00.000Z"
+date: "2025-12-17"
+thumbnail: ""
+description: "Updated Date Range Guardrails in Insights Reports"
+isAnnouncement: false
+---
+
+<ChangelogPostHeader
+  date="2025-12-17"
+  image=""
+  title="Updated Date Range Guardrails for 'All Events' and Line & Column Charts"
+/>
+
+To enable a great self-serve experience and quick queries, we have updated guardrails for date ranges on reports using “All Events” and “Line/Column Charts” described below:
+
+- For Line/Columns charts using “Hour” Unit, the report date range can be a maximum of 31 days
+- For Line/Columns charts using “Day” Unit, the report date range can be a maximum of 12 Months
+- For Insights Reports using “All Events”, the report date range can be a maximum of 93 days
+- For Insights Reports using “Cohort Over Time” with Line/Column charts, the report date range can be a maximum of 93 Unit Intervals (i.e., 93 Days for Day Unit, 93 Weeks for Week Unit)
+
+If your existing reports reach the guardrail, we recommend the following approaches to update your reports and receive the same analysis:
+
+- Combine events into [Custom Events](/docs/features/custom-events) or [Saved Behaviors](/docs/features/saved-metrics-and-behaviors), which are not subject to the 93-day “All Events” limit.
+- Utilize [Time Period Comparisons](/docs/reports/insights#time-period-comparisons) for year-over-year analysis.
+- Reduce the report date range, or create multiple reports with smaller date ranges in a single [Board](/docs/boards).
+
+If you have any questions or need assistance building a report, please don’t hesitate to reach out to our [Support Team](https://mixpanel.com/get-support).