# Issue with Rollover Index Using Same Date After ELK Upgrade (8.14 -\> 8.16)

**URL:** <https://discuss.elastic.co/t/issue-with-rollover-index-using-same-date-after-elk-upgrade-8-14-8-16/375688>\
**Category:** Kibana\
**Created:** [March 11, 2025, 8:41am UTC](https://discuss.elastic.co/t/issue-with-rollover-index-using-same-date-after-elk-upgrade-8-14-8-16/375688 "2025-03-11T08:41:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Monika1](https://avatars.discourse-cdn.com/v4/letter/m/a88e4f/32.png) [@Monika1](https://discuss.elastic.co/u/Monika1)\
**Post date:** [March 11, 2025, 8:41am UTC](https://discuss.elastic.co/t/issue-with-rollover-index-using-same-date-after-elk-upgrade-8-14-8-16/375688/1 "2025-03-11T08:41:41Z")

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After upgrading ELK from **8.14 to 8.16** , I noticed an issue with the **rollover index**. Even after performing a rollover, the new index retains the same date as the previous one—only the number is incrementing.

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/b/8/b84034eb5b642da56c07683b3ec1d9fddc0d873e.png)

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**Author:** ![Vivek\_Shinde](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vivek_shinde/32/117294_2.png) [@Vivek\_Shinde](https://discuss.elastic.co/u/Vivek_Shinde)\
**Post date:** [July 30, 2025, 3:41am UTC](https://discuss.elastic.co/t/issue-with-rollover-index-using-same-date-after-elk-upgrade-8-14-8-16/375688/2 "2025-07-30T03:41:33Z")

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This happens when initial index is created with static date, instead of date math. Refer - [Elasticsearch API conventions | Reference](https://www.elastic.co/docs/reference/elasticsearch/rest-apis/api-conventions#api-date-math-index-names)