ReleaseNotes: Updated changelog and release notes for 7.4.0-beta1 (#30853)

CHANGELOG.md

@@ -128,6 +128,7 @@ This option to group query variable values into groups by tags has been an exper
 
 ### Plugin development fixes & changes
 
+* **AngularPlugins**: Angular controller events emitter is now a separate emitter and not the same as PanelModel events emitter. [#30379](https://github.com/grafana/grafana/pull/30379), [@torkelo](https://github.com/torkelo)
 * **FieldConfig API**: Add ability to hide field option or disable it from the overrides. [#29879](https://github.com/grafana/grafana/pull/29879), [@dprokop](https://github.com/dprokop)
 * **Select**: Changes default menu placement for Select from auto to bottom. [#29837](https://github.com/grafana/grafana/pull/29837), [@hugohaggmark](https://github.com/hugohaggmark)
 * **Collapse**: Allow component children to use height: 100% styling. [#29776](https://github.com/grafana/grafana/pull/29776), [@aocenas](https://github.com/aocenas)

docs/sources/release-notes/release-notes-7-4-0-beta1.md

@@ -133,6 +133,7 @@ This option to group query variable values into groups by tags has been an exper
 
 ### Plugin development fixes & changes
 
+* **AngularPlugins**: Angular controller events emitter is now a separate emitter and not the same as PanelModel events emitter. [#30379](https://github.com/grafana/grafana/pull/30379), [@torkelo](https://github.com/torkelo)
 * **FieldConfig API**: Add ability to hide field option or disable it from the overrides. [#29879](https://github.com/grafana/grafana/pull/29879), [@dprokop](https://github.com/dprokop)
 * **Select**: Changes default menu placement for Select from auto to bottom. [#29837](https://github.com/grafana/grafana/pull/29837), [@hugohaggmark](https://github.com/hugohaggmark)
 * **Collapse**: Allow component children to use height: 100% styling. [#29776](https://github.com/grafana/grafana/pull/29776), [@aocenas](https://github.com/aocenas)
@@ -145,3 +146,4 @@ This option to group query variable values into groups by tags has been an exper
 * **Card**: Add new Card component. [#28216](https://github.com/grafana/grafana/pull/28216), [@Clarity-89](https://github.com/Clarity-89)
 * **FieldConfig**: Implementation slider editor (#27592). [#28007](https://github.com/grafana/grafana/pull/28007), [@isaozlerfm](https://github.com/isaozlerfm)
 * **MutableDataFrame**: Remove unique field name constraint and values field index and unused/seldom used stuff. [#27573](https://github.com/grafana/grafana/pull/27573), [@torkelo](https://github.com/torkelo)
+