Release: update changelog for main (#109556)

* Update changelog

* Update changelog

* Update changelog

* Update CHANGELOG.md

Manually update changelog with 11.6.5 changes

* Update CHANGELOG.md

Update with 12.0.4 changelog content

* Update CHANGELOG.md

update changelog with 12.1.1 content

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Jev Forsberg <46619047+baldm0mma@users.noreply.github.com>

CHANGELOG.md

@@ -1,3 +1,68 @@
+<!-- 12.1.1 START -->
+
+# 12.1.1 (2025-08-13)
+
+### Features and enhancements
+
+- **Alerting:** Add rule group name validation to the Prometheus conversion API [#108767](https://github.com/grafana/grafana/pull/108767), [@alexander-akhmetov](https://github.com/alexander-akhmetov)
+- **CloudWatch:** Update grafana/aws-sdk-go with STS endpo… [#109357](https://github.com/grafana/grafana/pull/109357), [@iwysiu](https://github.com/iwysiu)
+- **Go:** Update to 1.24.6 [#109318](https://github.com/grafana/grafana/pull/109318), [@Proximyst](https://github.com/Proximyst)
+
+### Bug fixes
+
+- **Alerting:** Fix active time intervals when time interval is renamed [#108547](https://github.com/grafana/grafana/pull/108547), [@yuri-tceretian](https://github.com/yuri-tceretian)
+- **Alerting:** Fix subpath handling in the alerting package [#109505](https://github.com/grafana/grafana/pull/109505), [@konrad147](https://github.com/konrad147)
+- **Config:** Fix date_formats options being moved to a different section [#109366](https://github.com/grafana/grafana/pull/109366), [@joshhunt](https://github.com/joshhunt)
+
+<!-- 12.1.1 END -->
+<!-- 12.0.4 START -->
+
+# 12.0.4 (2025-08-13)
+
+### Features and enhancements
+
+- **Go:** Update to 1.24.6 [#109317](https://github.com/grafana/grafana/pull/109317), [@Proximyst](https://github.com/Proximyst)
+
+### Bug fixes
+
+- **Azure:** Fix time management field [#108481](https://github.com/grafana/grafana/pull/108481), [@aangelisc](https://github.com/aangelisc)
+- **Azure:** Fix time management field [#108481](https://github.com/grafana/grafana/pull/108481), [@aangelisc](https://github.com/aangelisc)
+- **Azure:** Fix time management field [#108481](https://github.com/grafana/grafana/pull/108481), [@aangelisc](https://github.com/aangelisc)
+- **Azure:** Fix time management field [#108481](https://github.com/grafana/grafana/pull/108481), [@aangelisc](https://github.com/aangelisc)
+
+<!-- 12.0.4 END -->
+<!-- 11.6.5 START -->
+
+# 11.6.5 (2025-08-13)
+
+### Features and enhancements
+
+- **Alerting:** Bump alerting package to include change to NewTLSClient [#108817](https://github.com/grafana/grafana/pull/108817), [@rwwiv](https://github.com/rwwiv)
+- **Go:** Update to 1.24.6 [#109314](https://github.com/grafana/grafana/pull/109314), [@Proximyst](https://github.com/Proximyst)
+
+<!-- 11.6.5 END -->
+<!-- 11.5.8 START -->
+
+# 11.5.8 (2025-08-12)
+
+### Features and enhancements
+
+- **Go:** Update to 1.24.6 [#109315](https://github.com/grafana/grafana/pull/109315), [@Proximyst](https://github.com/Proximyst)
+
+<!-- 11.5.8 END -->
+<!-- 11.4.8 START -->
+
+# 11.4.8 (2025-08-12)
+
+### Features and enhancements
+
+- **Go:** Update to 1.24.6 [#109316](https://github.com/grafana/grafana/pull/109316), [@Proximyst](https://github.com/Proximyst)
+
+### Bug fixes
+
+- **Dashboards:** Panel react for `timeFrom` and `timeShift` changes using variables [#98659](https://github.com/grafana/grafana/pull/98659), [@Sergej-Vlasov](https://github.com/Sergej-Vlasov)
+
+<!-- 11.4.8 END -->
 <!-- 12.1.0 START -->
 
 # 12.1.0 (2025-07-23)