[v10.0.x] Explore: Promote exploreMixedDatasource to Stable & enable by default (#68353)

docs/sources/explore/_index.md

@@ -75,6 +75,6 @@ The Share shortened link capability allows you to create smaller and simpler URL
 
 ### exploreMixedDatasource
 
-Disabled by default, allows users in Explore to have different data sources for different queries. If compatible, results will be combined.
+Enabled by default, allows users in Explore to have different data sources for different queries. If compatible, results will be combined.
 
 Learn more about how to use [Mixed data source]({{< relref "../datasources/#special-data-sources" >}}).

docs/sources/setup-grafana/configure-grafana/feature-toggles/index.md

@@ -23,6 +23,7 @@ Some stable features are enabled by default. You can disable a stable feature by
 | ----------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------ |
 | `disableEnvelopeEncryption`         | Disable envelope encryption (emergency only)                                                                                                                                                        |                    |
 | `featureHighlights`                 | Highlight Grafana Enterprise features                                                                                                                                                               |                    |
+| `exploreMixedDatasource`            | Enable mixed datasource in Explore                                                                                                                                                                  | Yes                |
 | `cloudWatchDynamicLabels`           | Use dynamic labels instead of alias patterns in CloudWatch datasource                                                                                                                               | Yes                |
 | `dataConnectionsConsole`            | Enables a new top-level page called Connections. This page is an experiment that provides a better experience when you install and configure data sources and other plugins.                        | Yes                |
 | `internationalization`              | Enables internationalization                                                                                                                                                                        | Yes                |
@@ -49,7 +50,6 @@ Some stable features are enabled by default. You can disable a stable feature by
 | `publicDashboards`                   | Enables public access to dashboards                                                                                                                                                          |
 | `publicDashboardsEmailSharing`       | Enables public dashboard sharing to be restricted to only allowed emails                                                                                                                     |
 | `migrationLocking`                   | Lock database during migrations                                                                                                                                                              |
-| `exploreMixedDatasource`             | Enable mixed datasource in Explore                                                                                                                                                           |
 | `correlations`                       | Correlations page                                                                                                                                                                            |
 | `newDBLibrary`                       | Use jmoiron/sqlx rather than xorm for a few backend services                                                                                                                                 |
 | `validateDashboardsOnSave`           | Validate dashboard JSON POSTed to api/dashboards/db                                                                                                                                          |

pkg/services/featuremgmt/registry.go

@@ -87,8 +87,9 @@ var (
 		{
 			Name:         "exploreMixedDatasource",
 			Description:  "Enable mixed datasource in Explore",
-			State:        FeatureStateBeta,
+			State:        FeatureStateStable,
 			FrontendOnly: true,
+			Expression:   "true", // enabled by default
 			Owner:        grafanaExploreSquad,
 		},
 		{

pkg/services/featuremgmt/toggles_gen.csv

@@ -11,7 +11,7 @@ lokiLive,alpha,@grafana/observability-logs,false,false,false,false
 featureHighlights,stable,@grafana/grafana-as-code,false,false,false,false
 migrationLocking,beta,@grafana/backend-platform,false,false,false,false
 storage,alpha,@grafana/grafana-app-platform-squad,false,false,false,false
-exploreMixedDatasource,beta,@grafana/explore-squad,false,false,false,true
+exploreMixedDatasource,stable,@grafana/explore-squad,false,false,false,true
 newTraceViewHeader,alpha,@grafana/observability-traces-and-profiling,false,false,false,true
 correlations,beta,@grafana/explore-squad,false,false,false,false
 cloudWatchDynamicLabels,stable,@grafana/aws-plugins,false,false,false,false