diff --git a/app/assets/javascripts/monitoring/components/dashboard.vue b/app/assets/javascripts/monitoring/components/dashboard.vue
index bde62275797..ab14b681f10 100644
--- a/app/assets/javascripts/monitoring/components/dashboard.vue
+++ b/app/assets/javascripts/monitoring/components/dashboard.vue
@@ -72,10 +72,6 @@ export default {
       type: String,
       required: true,
     },
-    addDashboardDocumentationPath: {
-      type: String,
-      required: true,
-    },
     settingsPath: {
       type: String,
       required: true,
@@ -409,7 +405,6 @@ export default {
       v-if="showHeader"
       ref="prometheusGraphsHeader"
       class="prometheus-graphs-header d-sm-flex flex-sm-wrap pt-2 pr-1 pb-0 pl-2 border-bottom bg-gray-light"
-      :add-dashboard-documentation-path="addDashboardDocumentationPath"
       :default-branch="defaultBranch"
       :rearrange-panels-available="rearrangePanelsAvailable"
       :custom-metrics-available="customMetricsAvailable"
diff --git a/app/assets/javascripts/monitoring/components/dashboard_header.vue b/app/assets/javascripts/monitoring/components/dashboard_header.vue
index 82bd263e9b0..7ac35809b99 100644
--- a/app/assets/javascripts/monitoring/components/dashboard_header.vue
+++ b/app/assets/javascripts/monitoring/components/dashboard_header.vue
@@ -107,10 +107,6 @@ export default {
       type: Object,
       required: true,
     },
-    addDashboardDocumentationPath: {
-      type: String,
-      required: true,
-    },
   },
   data() {
     return {
@@ -128,6 +124,7 @@ export default {
       'canAccessOperationsSettings',
       'operationsSettingsPath',
       'currentDashboard',
+      'addDashboardDocumentationPath',
     ]),
     ...mapGetters('monitoringDashboard', ['selectedDashboard', 'filteredEnvironments']),
     isOutOfTheBoxDashboard() {
diff --git a/app/assets/javascripts/monitoring/components/dashboard_panel_builder.vue b/app/assets/javascripts/monitoring/components/dashboard_panel_builder.vue
index 7e6ebfe26c0..1f878a113fe 100644
--- a/app/assets/javascripts/monitoring/components/dashboard_panel_builder.vue
+++ b/app/assets/javascripts/monitoring/components/dashboard_panel_builder.vue
@@ -1,6 +1,14 @@
 <script>
 import { mapActions, mapState } from 'vuex';
-import { GlCard, GlForm, GlFormGroup, GlFormTextarea, GlButton, GlAlert } from '@gitlab/ui';
+import {
+  GlCard,
+  GlForm,
+  GlFormGroup,
+  GlFormTextarea,
+  GlButton,
+  GlSprintf,
+  GlAlert,
+} from '@gitlab/ui';
 import DashboardPanel from './dashboard_panel.vue';
 
 const initialYml = `title:
@@ -18,6 +26,7 @@ export default {
     GlFormGroup,
     GlFormTextarea,
     GlButton,
+    GlSprintf,
     GlAlert,
     DashboardPanel,
   },
@@ -31,6 +40,8 @@ export default {
       'panelPreviewIsLoading',
       'panelPreviewError',
       'panelPreviewGraphData',
+      'projectPath',
+      'addDashboardDocumentationPath',
     ]),
   },
   methods: {
@@ -43,45 +54,91 @@ export default {
 </script>
 <template>
   <div>
-    <gl-card>
-      <template #header>
-        <h2 class="gl-font-size-h2 gl-my-3">{{ s__('Metrics|Define and preview panel') }}</h2>
-      </template>
-      <template #default>
-        <gl-form @submit.prevent="onSubmit">
-          <gl-form-group
-            :label="s__('Metrics|Panel YAML')"
-            :description="s__('Metrics|Define panel YAML to preview panel.')"
-            label-for="panel-yml-input"
+    <div class="gl-display-flex gl-mx-n3">
+      <gl-card class="gl-flex-grow-1 gl-flex-basis-0 gl-mx-3">
+        <template #header>
+          <h2 class="gl-font-size-h2 gl-my-3">{{ s__('Metrics|1. Define and preview panel') }}</h2>
+        </template>
+        <template #default>
+          <p>{{ s__('Metrics|Define panel YAML below to preview panel.') }}</p>
+          <gl-form @submit.prevent="onSubmit">
+            <gl-form-group :label="s__('Metrics|Panel YAML')" label-for="panel-yml-input">
+              <gl-form-textarea
+                id="panel-yml-input"
+                v-model="yml"
+                class="gl-h-200! gl-font-monospace! gl-font-size-monospace!"
+              />
+            </gl-form-group>
+            <div class="gl-text-right">
+              <gl-button
+                ref="clipboardCopyBtn"
+                variant="success"
+                category="secondary"
+                :data-clipboard-text="yml"
+                @click="$toast.show(s__('Metrics|Panel YAML copied'))"
+              >
+                {{ s__('Metrics|Copy YAML') }}
+              </gl-button>
+              <gl-button
+                type="submit"
+                variant="success"
+                :disabled="panelPreviewIsLoading"
+                class="js-no-auto-disable"
+              >
+                {{ s__('Metrics|Preview panel') }}
+              </gl-button>
+            </div>
+          </gl-form>
+        </template>
+      </gl-card>
+
+      <gl-card
+        class="gl-flex-grow-1 gl-flex-basis-0 gl-mx-3"
+        body-class="gl-display-flex gl-flex-direction-column"
+      >
+        <template #header>
+          <h2 class="gl-font-size-h2 gl-my-3">
+            {{ s__('Metrics|2. Paste panel YAML into dashboard') }}
+          </h2>
+        </template>
+        <template #default>
+          <div
+            class="gl-flex-grow-1 gl-display-flex gl-flex-direction-column gl-justify-content-center"
           >
-            <gl-form-textarea
-              id="panel-yml-input"
-              v-model="yml"
-              class="gl-h-200! gl-font-monospace! gl-font-size-monospace!"
-            />
-          </gl-form-group>
+            <p>
+              {{ s__('Metrics|Copy and paste the panel YAML into your dashboard YAML file.') }}
+              <br />
+              <gl-sprintf
+                :message="
+                  s__(
+                    'Metrics|Dashboard files can be found in %{codeStart}.gitlab/dashboards%{codeEnd} at the root of this project.',
+                  )
+                "
+              >
+                <template #code="{content}">
+                  <code>{{ content }}</code>
+                </template>
+              </gl-sprintf>
+            </p>
+          </div>
+
           <div class="gl-text-right">
             <gl-button
-              ref="clipboardCopyBtn"
-              variant="success"
+              ref="viewDocumentationBtn"
               category="secondary"
-              :data-clipboard-text="yml"
-              @click="$toast.show(s__('Metrics|Panel YAML copied'))"
+              variant="info"
+              target="_blank"
+              :href="addDashboardDocumentationPath"
             >
-              {{ s__('Metrics|Copy YAML') }}
+              {{ s__('Metrics|View documentation') }}
             </gl-button>
-            <gl-button
-              type="submit"
-              variant="success"
-              :disabled="panelPreviewIsLoading"
-              class="js-no-auto-disable"
-            >
-              {{ s__('Metrics|Preview panel') }}
+            <gl-button ref="openRepositoryBtn" variant="success" :href="projectPath">
+              {{ s__('Metrics|Open repository') }}
             </gl-button>
           </div>
-        </gl-form>
-      </template>
-    </gl-card>
+        </template>
+      </gl-card>
+    </div>
 
     <gl-alert v-if="panelPreviewError" variant="warning" :dismissible="false">
       {{ panelPreviewError }}
diff --git a/app/assets/javascripts/monitoring/stores/state.js b/app/assets/javascripts/monitoring/stores/state.js
index e23a305bd93..6cf486da63e 100644
--- a/app/assets/javascripts/monitoring/stores/state.js
+++ b/app/assets/javascripts/monitoring/stores/state.js
@@ -80,6 +80,7 @@ export default () => ({
   projectPath: null,
   operationsSettingsPath: '',
   logsPath: invalidUrl,
+  addDashboardDocumentationPath: '',
 
   // static paths
   customDashboardBasePath: '',
diff --git a/app/assets/javascripts/monitoring/utils.js b/app/assets/javascripts/monitoring/utils.js
index 8f9e32dc8d5..74af45fcb0c 100644
--- a/app/assets/javascripts/monitoring/utils.js
+++ b/app/assets/javascripts/monitoring/utils.js
@@ -32,6 +32,7 @@ export const stateAndPropsFromDataset = (dataset = {}) => {
     logsPath,
     currentEnvironmentName,
     customDashboardBasePath,
+    addDashboardDocumentationPath,
     ...dataProps
   } = dataset;
 
@@ -54,6 +55,7 @@ export const stateAndPropsFromDataset = (dataset = {}) => {
       logsPath,
       currentEnvironmentName,
       customDashboardBasePath,
+      addDashboardDocumentationPath,
     },
     dataProps,
   };
diff --git a/app/assets/javascripts/packages/details/components/additional_metadata.vue b/app/assets/javascripts/packages/details/components/additional_metadata.vue
new file mode 100644
index 00000000000..adc569e466a
--- /dev/null
+++ b/app/assets/javascripts/packages/details/components/additional_metadata.vue
@@ -0,0 +1,98 @@
+<script>
+import { GlLink, GlSprintf } from '@gitlab/ui';
+import { s__ } from '~/locale';
+import DetailsRow from '~/registry/shared/components/details_row.vue';
+import { generateConanRecipe } from '../utils';
+import { PackageType } from '../../shared/constants';
+
+export default {
+  i18n: {
+    sourceText: s__('PackageRegistry|Source project located at %{link}'),
+    licenseText: s__('PackageRegistry|License information located at %{link}'),
+    recipeText: s__('PackageRegistry|Recipe: %{recipe}'),
+    appGroup: s__('PackageRegistry|App group: %{group}'),
+    appName: s__('PackageRegistry|App name: %{name}'),
+  },
+  components: {
+    DetailsRow,
+    GlLink,
+    GlSprintf,
+  },
+  props: {
+    packageEntity: {
+      type: Object,
+      required: true,
+    },
+  },
+  computed: {
+    conanRecipe() {
+      return generateConanRecipe(this.packageEntity);
+    },
+    showMetadata() {
+      const visibilityConditions = {
+        [PackageType.NUGET]: this.packageEntity.nuget_metadatum,
+        [PackageType.CONAN]: this.packageEntity.conan_metadatum,
+        [PackageType.MAVEN]: this.packageEntity.maven_metadatum,
+      };
+      return visibilityConditions[this.packageEntity.package_type];
+    },
+  },
+};
+</script>
+
+<template>
+  <div v-if="showMetadata">
+    <h3 class="gl-font-lg gl-mt-5" data-testid="title">{{ __('Additional Metadata') }}</h3>
+
+    <div class="gl-bg-gray-50 gl-inset-border-1-gray-100 gl-rounded-base" data-testid="main">
+      <template v-if="packageEntity.nuget_metadatum">
+        <details-row icon="project" padding="gl-p-4" dashed data-testid="nuget-source">
+          <gl-sprintf :message="$options.i18n.sourceText">
+            <template #link>
+              <gl-link :href="packageEntity.nuget_metadatum.project_url" target="_blank">{{
+                packageEntity.nuget_metadatum.project_url
+              }}</gl-link>
+            </template>
+          </gl-sprintf>
+        </details-row>
+        <details-row icon="license" padding="gl-p-4" data-testid="nuget-license">
+          <gl-sprintf :message="$options.i18n.licenseText">
+            <template #link>
+              <gl-link :href="packageEntity.nuget_metadatum.license_url" target="_blank">{{
+                packageEntity.nuget_metadatum.license_url
+              }}</gl-link>
+            </template>
+          </gl-sprintf>
+        </details-row>
+      </template>
+
+      <details-row
+        v-else-if="packageEntity.conan_metadatum"
+        icon="information-o"
+        padding="gl-p-4"
+        data-testid="conan-recipe"
+      >
+        <gl-sprintf :message="$options.i18n.recipeText">
+          <template #recipe>{{ conanRecipe }}</template>
+        </gl-sprintf>
+      </details-row>
+
+      <template v-else-if="packageEntity.maven_metadatum">
+        <details-row icon="information-o" padding="gl-p-4" dashed data-testid="maven-app">
+          <gl-sprintf :message="$options.i18n.appName">
+            <template #name>
+              <strong>{{ packageEntity.maven_metadatum.app_name }}</strong>
+            </template>
+          </gl-sprintf>
+        </details-row>
+        <details-row icon="information-o" padding="gl-p-4" data-testid="maven-group">
+          <gl-sprintf :message="$options.i18n.appGroup">
+            <template #group>
+              <strong>{{ packageEntity.maven_metadatum.app_group }}</strong>
+            </template>
+          </gl-sprintf>
+        </details-row>
+      </template>
+    </div>
+  </div>
+</template>
diff --git a/app/assets/javascripts/packages/details/components/app.vue b/app/assets/javascripts/packages/details/components/app.vue
index d48f9651b59..b6a9457688d 100644
--- a/app/assets/javascripts/packages/details/components/app.vue
+++ b/app/assets/javascripts/packages/details/components/app.vue
@@ -12,6 +12,7 @@ import {
   GlTable,
   GlSprintf,
 } from '@gitlab/ui';
+import { mapActions, mapState } from 'vuex';
 import Tracking from '~/tracking';
 import PackageActivity from './activity.vue';
 import PackageHistory from './package_history.vue';
@@ -25,6 +26,7 @@ import PypiInstallation from './pypi_installation.vue';
 import PackagesListLoader from '../../shared/components/packages_list_loader.vue';
 import PackageListRow from '../../shared/components/package_list_row.vue';
 import DependencyRow from './dependency_row.vue';
+import AdditionalMetadata from './additional_metadata.vue';
 import { numberToHumanSize } from '~/lib/utils/number_utils';
 import timeagoMixin from '~/vue_shared/mixins/timeago';
 import FileIcon from '~/vue_shared/components/file_icon.vue';
@@ -32,7 +34,6 @@ import { generatePackageInfo } from '../utils';
 import { __, s__ } from '~/locale';
 import { PackageType, TrackingActions } from '../../shared/constants';
 import { packageTypeToTrackCategory } from '../../shared/utils';
-import { mapActions, mapState } from 'vuex';
 
 export default {
   name: 'PackagesApp',
@@ -59,6 +60,7 @@ export default {
     PackageListRow,
     DependencyRow,
     PackageHistory,
+    AdditionalMetadata,
   },
   directives: {
     GlTooltip: GlTooltipDirective,
@@ -253,9 +255,12 @@ export default {
           <package-activity />
         </template>
 
-        <package-history v-else :package-entity="packageEntity" :project-name="projectName" />
+        <template v-else>
+          <package-history :package-entity="packageEntity" :project-name="projectName" />
+          <additional-metadata :package-entity="packageEntity" />
+        </template>
 
-        <h3 class="gl-font-lg">{{ __('Files') }}</h3>
+        <h3 class="gl-font-lg gl-mt-5">{{ __('Files') }}</h3>
         <gl-table
           :fields="$options.filesTableHeaderFields"
           :items="filesTableRows"
diff --git a/app/assets/javascripts/packages/details/components/history_element.vue b/app/assets/javascripts/packages/details/components/history_element.vue
index f2129ec9c29..8a51c1528cf 100644
--- a/app/assets/javascripts/packages/details/components/history_element.vue
+++ b/app/assets/javascripts/packages/details/components/history_element.vue
@@ -19,7 +19,7 @@ export default {
 </script>
 
 <template>
-  <timeline-entry-item class="system-note note-wrapper gl-my-6!">
+  <timeline-entry-item class="system-note note-wrapper gl-mb-6!">
     <div class="timeline-icon">
       <gl-icon :name="icon" />
     </div>
diff --git a/app/assets/javascripts/packages/details/components/package_history.vue b/app/assets/javascripts/packages/details/components/package_history.vue
index a3f3e85a1fb..e3351f73791 100644
--- a/app/assets/javascripts/packages/details/components/package_history.vue
+++ b/app/assets/javascripts/packages/details/components/package_history.vue
@@ -44,8 +44,8 @@ export default {
 
 <template>
   <div class="issuable-discussion">
-    <h3 class="gl-ml-6" data-testid="title">{{ __('History') }}</h3>
-    <ul class="timeline main-notes-list notes gl-my-4" data-testid="timeline">
+    <h3 class="gl-font-lg gl-my-3" data-testid="title">{{ __('History') }}</h3>
+    <ul class="timeline main-notes-list notes gl-mb-4" data-testid="timeline">
       <history-element icon="clock" data-testid="created-on">
         <gl-sprintf :message="$options.i18n.createdOn">
           <template #name>
diff --git a/app/assets/javascripts/registry/explorer/components/details_page/tags_list_row.vue b/app/assets/javascripts/registry/explorer/components/details_page/tags_list_row.vue
index 51ba2337db6..8ec5cebbe8e 100644
--- a/app/assets/javascripts/registry/explorer/components/details_page/tags_list_row.vue
+++ b/app/assets/javascripts/registry/explorer/components/details_page/tags_list_row.vue
@@ -7,7 +7,7 @@ import TimeAgoTooltip from '~/vue_shared/components/time_ago_tooltip.vue';
 import { formatDate } from '~/lib/utils/datetime_utility';
 import DeleteButton from '../delete_button.vue';
 import ListItem from '../list_item.vue';
-import DetailsRow from './details_row.vue';
+import DetailsRow from '~/registry/shared/components/details_row.vue';
 import {
   REMOVE_TAG_BUTTON_TITLE,
   DIGEST_LABEL,
diff --git a/app/assets/javascripts/registry/explorer/components/details_page/details_row.vue b/app/assets/javascripts/registry/shared/components/details_row.vue
similarity index 50%
rename from app/assets/javascripts/registry/explorer/components/details_page/details_row.vue
rename to app/assets/javascripts/registry/shared/components/details_row.vue
index c4358b83e23..2e245fadead 100644
--- a/app/assets/javascripts/registry/explorer/components/details_page/details_row.vue
+++ b/app/assets/javascripts/registry/shared/components/details_row.vue
@@ -10,13 +10,29 @@ export default {
       type: String,
       required: true,
     },
+    padding: {
+      type: String,
+      default: 'gl-py-2',
+      required: false,
+    },
+    dashed: {
+      type: Boolean,
+      default: false,
+      required: false,
+    },
+  },
+  computed: {
+    borderClass() {
+      return this.dashed ? 'gl-border-b-solid gl-border-gray-100 gl-border-b-1' : '';
+    },
   },
 };
 </script>
 
 <template>
   <div
-    class="gl-display-flex gl-align-items-center gl-font-monospace gl-font-sm gl-py-2 gl-word-break-all"
+    class="gl-display-flex gl-align-items-center gl-font-monospace gl-font-sm gl-word-break-all"
+    :class="[padding, borderClass]"
   >
     <gl-icon :name="icon" class="gl-mr-4" />
     <span>
diff --git a/app/controllers/projects/issues_controller.rb b/app/controllers/projects/issues_controller.rb
index fde3b718289..730853abc70 100644
--- a/app/controllers/projects/issues_controller.rb
+++ b/app/controllers/projects/issues_controller.rb
@@ -51,7 +51,10 @@ class Projects::IssuesController < Projects::ApplicationController
   end
 
   before_action only: :show do
-    push_frontend_feature_flag(:real_time_issue_sidebar, @project)
+    real_time_feature_flag = :real_time_issue_sidebar
+    real_time_enabled = Gitlab::ActionCable::Config.in_app? || Feature.enabled?(real_time_feature_flag, @project)
+
+    gon.push({ features: { real_time_feature_flag.to_s.camelize(:lower) => real_time_enabled } }, true)
   end
 
   before_action only: :index do
diff --git a/app/controllers/registrations_controller.rb b/app/controllers/registrations_controller.rb
index b1c1fe3ba74..ee638db77a8 100644
--- a/app/controllers/registrations_controller.rb
+++ b/app/controllers/registrations_controller.rb
@@ -18,6 +18,8 @@ class RegistrationsController < Devise::RegistrationsController
   def new
     if experiment_enabled?(:signup_flow)
       track_experiment_event(:signup_flow, 'start') # We want this event to be tracked when the user is _in_ the experimental group
+      track_experiment_event(:terms_opt_in, 'start')
+
       @resource = build_resource
     else
       redirect_to new_user_session_path(anchor: 'register-pane')
@@ -26,6 +28,7 @@ class RegistrationsController < Devise::RegistrationsController
 
   def create
     track_experiment_event(:signup_flow, 'end') unless experiment_enabled?(:signup_flow) # We want this event to be tracked when the user is _in_ the control group
+    track_experiment_event(:terms_opt_in, 'end')
 
     accept_pending_invitations
 
@@ -178,6 +181,8 @@ class RegistrationsController < Devise::RegistrationsController
   end
 
   def terms_accepted?
+    return true if experiment_enabled?(:terms_opt_in)
+
     Gitlab::Utils.to_boolean(params[:terms_opt_in])
   end
 
diff --git a/app/models/concerns/issuable.rb b/app/models/concerns/issuable.rb
index 715cbd15d93..fe51bdc2486 100644
--- a/app/models/concerns/issuable.rb
+++ b/app/models/concerns/issuable.rb
@@ -65,7 +65,7 @@ module Issuable
     has_many :labels, through: :label_links
     has_many :todos, as: :target, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
 
-    has_one :metrics
+    has_one :metrics, inverse_of: model_name.singular.to_sym, autosave: true
 
     delegate :name,
              :email,
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 6c940febf2c..1c95789d7ba 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -1607,7 +1607,12 @@ class MergeRequest < ApplicationRecord
 
   override :ensure_metrics
   def ensure_metrics
-    MergeRequest::Metrics.safe_find_or_create_by(merge_request_id: id).tap do |metrics_record|
+    # Backward compatibility: some merge request metrics records will not have target_project_id filled in.
+    # In that case the first `safe_find_or_create_by` will return false.
+    # The second finder call will be eliminated in https://gitlab.com/gitlab-org/gitlab/-/issues/233507
+    metrics_record = MergeRequest::Metrics.safe_find_or_create_by(merge_request_id: id, target_project_id: target_project_id) || MergeRequest::Metrics.safe_find_or_create_by(merge_request_id: id)
+
+    metrics_record.tap do |metrics_record|
       # Make sure we refresh the loaded association object with the newly created/loaded item.
       # This is needed in order to have the exact functionality than before.
       #
@@ -1617,6 +1622,8 @@ class MergeRequest < ApplicationRecord
       # merge_request.ensure_metrics
       # merge_request.metrics # should return the metrics record and not nil
       # merge_request.metrics.merge_request # should return the same MR record
+
+      metrics_record.target_project_id = target_project_id
       metrics_record.association(:merge_request).target = self
       association(:metrics).target = metrics_record
     end
diff --git a/app/models/merge_request/metrics.rb b/app/models/merge_request/metrics.rb
index ba363019c72..f679beabf94 100644
--- a/app/models/merge_request/metrics.rb
+++ b/app/models/merge_request/metrics.rb
@@ -1,10 +1,18 @@
 # frozen_string_literal: true
 
 class MergeRequest::Metrics < ApplicationRecord
-  belongs_to :merge_request
+  belongs_to :merge_request, inverse_of: :metrics
   belongs_to :pipeline, class_name: 'Ci::Pipeline', foreign_key: :pipeline_id
   belongs_to :latest_closed_by, class_name: 'User'
   belongs_to :merged_by, class_name: 'User'
+
+  before_save :ensure_target_project_id
+
+  private
+
+  def ensure_target_project_id
+    self.target_project_id ||= merge_request.target_project_id
+  end
 end
 
 MergeRequest::Metrics.prepend_if_ee('EE::MergeRequest::Metrics')
diff --git a/app/services/issues/update_service.rb b/app/services/issues/update_service.rb
index 8d22f0edcdd..8835af3659d 100644
--- a/app/services/issues/update_service.rb
+++ b/app/services/issues/update_service.rb
@@ -22,7 +22,7 @@ module Issues
     end
 
     def after_update(issue)
-      IssuesChannel.broadcast_to(issue, event: 'updated') if Feature.enabled?(:broadcast_issue_updates, issue.project)
+      IssuesChannel.broadcast_to(issue, event: 'updated') if Gitlab::ActionCable::Config.in_app? || Feature.enabled?(:broadcast_issue_updates, issue.project)
     end
 
     def handle_changes(issue, options)
diff --git a/app/services/metrics/dashboard/cluster_dashboard_service.rb b/app/services/metrics/dashboard/cluster_dashboard_service.rb
index bfd5abf1126..49b9864b66c 100644
--- a/app/services/metrics/dashboard/cluster_dashboard_service.rb
+++ b/app/services/metrics/dashboard/cluster_dashboard_service.rb
@@ -9,7 +9,7 @@ module Metrics
       DASHBOARD_NAME = 'Cluster'
 
       # SHA256 hash of dashboard content
-      DASHBOARD_VERSION = '9349afc1d96329c08ab478ea0b77db94ee5cc2549b8c754fba67a7f424666b22'
+      DASHBOARD_VERSION = 'e1a4f8cc2c044cf32273af2cd775eb484729baac0995db687d81d92686bf588e'
 
       SEQUENCE = [
         STAGES::ClusterEndpointInserter,
diff --git a/app/services/metrics/dashboard/system_dashboard_service.rb b/app/services/metrics/dashboard/system_dashboard_service.rb
index 54ff81fd5f5..9560df00e4a 100644
--- a/app/services/metrics/dashboard/system_dashboard_service.rb
+++ b/app/services/metrics/dashboard/system_dashboard_service.rb
@@ -9,7 +9,7 @@ module Metrics
       DASHBOARD_NAME = N_('Overview')
 
       # SHA256 hash of dashboard content
-      DASHBOARD_VERSION = '4685fe386c25b1a786b3be18f79bb2ee9828019003e003816284cdb634fa3e13'
+      DASHBOARD_VERSION = 'ce9ae27d2913f637de851d61099bc4151583eae68b1386a2176339ef6e653223'
 
       SEQUENCE = [
         STAGES::CommonMetricsInserter,
diff --git a/app/views/devise/shared/_experimental_separate_sign_up_flow_box.html.haml b/app/views/devise/shared/_experimental_separate_sign_up_flow_box.html.haml
index 61271f4525c..1a7b290c413 100644
--- a/app/views/devise/shared/_experimental_separate_sign_up_flow_box.html.haml
+++ b/app/views/devise/shared/_experimental_separate_sign_up_flow_box.html.haml
@@ -28,7 +28,7 @@
         = f.label :password, class: 'label-bold'
         = f.password_field :password, class: "form-control bottom", data: { qa_selector: 'new_user_password_field' }, required: true, pattern: ".{#{@minimum_password_length},}", title: _("Minimum length is %{minimum_password_length} characters.") % { minimum_password_length: @minimum_password_length }
         %p.gl-field-hint.text-secondary= _('Minimum length is %{minimum_password_length} characters') % { minimum_password_length: @minimum_password_length }
-      - if Gitlab::CurrentSettings.current_application_settings.enforce_terms?
+      - if Gitlab::CurrentSettings.current_application_settings.enforce_terms? && !experiment_enabled?(:terms_opt_in)
         .form-group
           = check_box_tag :terms_opt_in, '1', false, required: true, data: { qa_selector: 'new_user_accept_terms_checkbox' }
           = label_tag :terms_opt_in do
@@ -41,5 +41,8 @@
         = recaptcha_tags
       .submit-container.mt-3
         = f.submit _("Register"), class: "btn-register btn btn-block btn-success mb-0 p-2", data: { qa_selector: 'new_user_register_button' }
+      - if experiment_enabled?(:terms_opt_in)
+        %p.gl-text-gray-700.gl-mt-5.gl-mb-0
+          = html_escape(_("By clicking Register, I agree that I have read and accepted the GitLab %{linkStart}Terms of Use and Privacy Policy%{linkEnd}")) % { linkStart: "<a href='#{terms_path}' target='_blank' rel='noreferrer noopener'>".html_safe, linkEnd: '</a>'.html_safe }
       - if omniauth_enabled? && button_based_providers_enabled?
         = render 'devise/shared/experimental_separate_sign_up_flow_omniauth_box'
diff --git a/changelogs/unreleased/add-target-project-id-to-merge-request-metrics.yml b/changelogs/unreleased/add-target-project-id-to-merge-request-metrics.yml
new file mode 100644
index 00000000000..22f1bd84b71
--- /dev/null
+++ b/changelogs/unreleased/add-target-project-id-to-merge-request-metrics.yml
@@ -0,0 +1,5 @@
+---
+title: Add target_project_id to merge_request_metrics table
+merge_request: 37713
+author:
+type: added
diff --git a/changelogs/unreleased/milestone-burnup-charts-backend.yml b/changelogs/unreleased/milestone-burnup-charts-backend.yml
new file mode 100644
index 00000000000..073d5bffc96
--- /dev/null
+++ b/changelogs/unreleased/milestone-burnup-charts-backend.yml
@@ -0,0 +1,5 @@
+---
+title: Add index to resource_milestone_events for add actions
+merge_request: 37636
+author:
+type: other
diff --git a/config/prometheus/cluster_metrics.yml b/config/prometheus/cluster_metrics.yml
index 1e396f4bbbd..a76a162820a 100644
--- a/config/prometheus/cluster_metrics.yml
+++ b/config/prometheus/cluster_metrics.yml
@@ -2,12 +2,10 @@ dashboard: 'Cluster health'
 priority: 1
 panel_groups:
 - group: Cluster Health
-  priority: 10
   panels:
   - title: "CPU Usage"
     type: "area-chart"
     y_label: "CPU (cores)"
-    weight: 1
     metrics:
       - id: cluster_health_cpu_usage
         query_range: 'avg(sum(rate(container_cpu_usage_seconds_total{id="/"}[15m])) by (job)) without (job)'
@@ -24,7 +22,6 @@ panel_groups:
   - title: "Memory Usage"
     type: "area-chart"
     y_label: "Memory (GiB)"
-    weight: 1
     metrics:
       - id: cluster_health_memory_usage
         query_range: 'avg(sum(container_memory_usage_bytes{id="/"}) by (job)) without (job) / 2^30'
diff --git a/config/prometheus/common_metrics.yml b/config/prometheus/common_metrics.yml
index d9aaff12a4d..67994740ff1 100644
--- a/config/prometheus/common_metrics.yml
+++ b/config/prometheus/common_metrics.yml
@@ -2,12 +2,10 @@ dashboard: 'Environment metrics'
 priority: 1
 panel_groups:
 - group: System metrics (Kubernetes)
-  priority: 15
   panels:
   - title: "Memory Usage (Total)"
     type: "area-chart"
     y_label: "Total Memory Used (GB)"
-    weight: 4
     metrics:
     - id: system_metrics_kubernetes_container_memory_total
       # Remove the second metric (after OR) when we drop support for K8s 1.13
@@ -18,7 +16,6 @@ panel_groups:
   - title: "Core Usage (Total)"
     type: "area-chart"
     y_label: "Total Cores"
-    weight: 3
     metrics:
     - id: system_metrics_kubernetes_container_cores_total
       # Remove the second metric (after OR) when we drop support for K8s 1.13
@@ -29,7 +26,6 @@ panel_groups:
   - title: "Memory Usage (Pod average)"
     type: "line-chart"
     y_label: "Memory Used per Pod (MB)"
-    weight: 2
     metrics:
     - id: system_metrics_kubernetes_container_memory_average
       # Remove the second metric (after OR) when we drop support for K8s 1.13
@@ -40,7 +36,6 @@ panel_groups:
   - title: "Canary: Memory Usage (Pod Average)"
     type: "line-chart"
     y_label: "Memory Used per Pod (MB)"
-    weight: 2
     metrics:
     - id: system_metrics_kubernetes_container_memory_average_canary
       # Remove the second metric (after OR) when we drop support for K8s 1.13
@@ -52,7 +47,6 @@ panel_groups:
   - title: "Core Usage (Pod Average)"
     type: "line-chart"
     y_label: "Cores per Pod"
-    weight: 1
     metrics:
     - id: system_metrics_kubernetes_container_core_usage
       # Remove the second metric (after OR) when we drop support for K8s 1.13
@@ -63,7 +57,6 @@ panel_groups:
   - title: "Canary: Core Usage (Pod Average)"
     type: "line-chart"
     y_label: "Cores per Pod"
-    weight: 1
     metrics:
     - id: system_metrics_kubernetes_container_core_usage_canary
       # Remove the second metric (after OR) when we drop support for K8s 1.13
@@ -75,7 +68,6 @@ panel_groups:
   - title: "Knative function invocations"
     type: "area-chart"
     y_label: "Invocations"
-    weight: 1
     metrics:
     - id: system_metrics_knative_function_invocation_count
       query_range: 'sum(ceil(rate(istio_requests_total{destination_service_namespace="{{kube_namespace}}", destination_service=~"{{function_name}}.*"}[1m])*60))'
@@ -83,12 +75,10 @@ panel_groups:
       unit: requests
 # NGINX Ingress metrics for pre-0.16.0 versions
 - group: Response metrics (NGINX Ingress VTS)
-  priority: 10
   panels:
   - title: "Throughput"
     type: "area-chart"
     y_label: "Requests / Sec"
-    weight: 1
     metrics:
     - id: response_metrics_nginx_ingress_throughput_status_code
       query_range: 'sum(rate(nginx_upstream_responses_total{upstream=~"{{kube_namespace}}-{{ci_environment_slug}}-.*"}[2m])) by (status_code)'
@@ -99,7 +89,6 @@ panel_groups:
     y_label: "Latency (ms)"
     y_axis:
       format: milliseconds
-    weight: 1
     metrics:
     - id: response_metrics_nginx_ingress_latency_pod_average
       query_range: 'avg(nginx_upstream_response_msecs_avg{upstream=~"{{kube_namespace}}-{{ci_environment_slug}}-.*"})'
@@ -110,7 +99,6 @@ panel_groups:
     y_label: "HTTP Errors (%)"
     y_axis:
       format: percentHundred
-    weight: 1
     metrics:
     - id: response_metrics_nginx_ingress_http_error_rate
       query_range: 'sum(rate(nginx_upstream_responses_total{status_code="5xx", upstream=~"{{kube_namespace}}-{{ci_environment_slug}}-.*"}[2m])) / sum(rate(nginx_upstream_responses_total{upstream=~"{{kube_namespace}}-{{ci_environment_slug}}-.*"}[2m])) * 100'
@@ -118,12 +106,10 @@ panel_groups:
       unit: "%"
 # NGINX Ingress metrics for post-0.16.0 versions
 - group: Response metrics (NGINX Ingress)
-  priority: 10
   panels:
   - title: "Throughput"
     type: "area-chart"
     y_label: "Requests / Sec"
-    weight: 1
     metrics:
     - id: response_metrics_nginx_ingress_16_throughput_status_code
       query_range: 'sum(label_replace(rate(nginx_ingress_controller_requests{namespace="{{kube_namespace}}",ingress=~".*{{ci_environment_slug}}.*"}[2m]), "status_code", "${1}xx", "status", "(.)..")) by (status_code)'
@@ -132,7 +118,6 @@ panel_groups:
   - title: "Latency"
     type: "area-chart"
     y_label: "Latency (ms)"
-    weight: 1
     metrics:
     - id: response_metrics_nginx_ingress_16_latency_pod_average
       query_range: 'sum(rate(nginx_ingress_controller_ingress_upstream_latency_seconds_sum{namespace="{{kube_namespace}}",ingress=~".*{{ci_environment_slug}}.*"}[2m])) / sum(rate(nginx_ingress_controller_ingress_upstream_latency_seconds_count{namespace="{{kube_namespace}}",ingress=~".*{{ci_environment_slug}}.*"}[2m])) * 1000'
@@ -141,19 +126,16 @@ panel_groups:
   - title: "HTTP Error Rate"
     type: "area-chart"
     y_label: "HTTP Errors (%)"
-    weight: 1
     metrics:
     - id: response_metrics_nginx_ingress_16_http_error_rate
       query_range: 'sum(rate(nginx_ingress_controller_requests{status=~"5.*",namespace="{{kube_namespace}}",ingress=~".*{{ci_environment_slug}}.*"}[2m])) / sum(rate(nginx_ingress_controller_requests{namespace="{{kube_namespace}}",ingress=~".*{{ci_environment_slug}}.*"}[2m])) * 100'
       label: 5xx Errors (%)
       unit: "%"
 - group: Response metrics (HA Proxy)
-  priority: 10
   panels:
   - title: "Throughput"
     type: "area-chart"
     y_label: "Requests / Sec"
-    weight: 1
     metrics:
     - id: response_metrics_ha_proxy_throughput_status_code
       query_range: 'sum(rate(haproxy_frontend_http_requests_total{ {{environment_filter}} }[2m])) by (code)'
@@ -162,19 +144,16 @@ panel_groups:
   - title: "HTTP Error Rate"
     type: "area-chart"
     y_label: "Error Rate (%)"
-    weight: 1
     metrics:
     - id: response_metrics_ha_proxy_http_error_rate
       query_range: 'sum(rate(haproxy_frontend_http_responses_total{code="5xx",{{environment_filter}} }[2m])) / sum(rate(haproxy_frontend_http_responses_total{ {{environment_filter}} }[2m]))'
       label: HTTP Errors (%)
       unit: "%"
 - group: Response metrics (AWS ELB)
-  priority: 10
   panels:
   - title: "Throughput"
     type: "area-chart"
     y_label: "Requests / Sec"
-    weight: 1
     metrics:
     - id: response_metrics_aws_elb_throughput_requests
       query_range: 'sum(aws_elb_request_count_sum{ {{environment_filter}} }) / 60'
@@ -183,7 +162,6 @@ panel_groups:
   - title: "Latency"
     type: "area-chart"
     y_label: "Latency (ms)"
-    weight: 1
     metrics:
     - id: response_metrics_aws_elb_latency_average
       query_range: 'avg(aws_elb_latency_average{ {{environment_filter}} }) * 1000'
@@ -192,19 +170,16 @@ panel_groups:
   - title: "HTTP Error Rate"
     type: "area-chart"
     y_label: "Error Rate (%)"
-    weight: 1
     metrics:
     - id: response_metrics_aws_elb_http_error_rate
       query_range: 'sum(aws_elb_httpcode_backend_5_xx_sum{ {{environment_filter}} }) / sum(aws_elb_request_count_sum{ {{environment_filter}} })'
       label: HTTP Errors (%)
       unit: "%"
 - group: Response metrics (NGINX)
-  priority: 10
   panels:
   - title: "Throughput"
     type: "area-chart"
     y_label: "Requests / Sec"
-    weight: 1
     metrics:
     - id: response_metrics_nginx_throughput_status_code
       query_range: 'sum(rate(nginx_server_requests{server_zone!="*", server_zone!="_", {{environment_filter}} }[2m])) by (code)'
@@ -213,7 +188,6 @@ panel_groups:
   - title: "Latency"
     type: "area-chart"
     y_label: "Latency (ms)"
-    weight: 1
     metrics:
     - id: response_metrics_nginx_latency
       query_range: 'avg(nginx_server_requestMsec{ {{environment_filter}} })'
@@ -224,7 +198,6 @@ panel_groups:
     y_label: "HTTP 500 Errors / Sec"
     y_axis:
       precision: 0
-    weight: 1
     metrics:
     - id: response_metrics_nginx_http_error_rate
       query_range: 'sum(rate(nginx_server_requests{code="5xx", {{environment_filter}} }[2m]))'
@@ -233,7 +206,6 @@ panel_groups:
   - title: "HTTP Error Rate"
     type: "area-chart"
     y_label: "HTTP Errors (%)"
-    weight: 1
     metrics:
     - id: response_metrics_nginx_http_error_percentage
       query_range: 'sum(rate(nginx_server_requests{code=~"5.*", host="*", {{environment_filter}} }[2m])) / sum(rate(nginx_server_requests{code="total", host="*", {{environment_filter}} }[2m])) * 100'
diff --git a/db/migrate/20200723125205_add_target_project_id_to_mr_metrics.rb b/db/migrate/20200723125205_add_target_project_id_to_mr_metrics.rb
new file mode 100644
index 00000000000..fb01b3fe046
--- /dev/null
+++ b/db/migrate/20200723125205_add_target_project_id_to_mr_metrics.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class AddTargetProjectIdToMrMetrics < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def up
+    with_lock_retries do
+      add_column :merge_request_metrics, :target_project_id, :integer
+    end
+  end
+
+  def down
+    with_lock_retries do
+      remove_column :merge_request_metrics, :target_project_id, :integer
+    end
+  end
+end
diff --git a/db/migrate/20200723128332_add_fk_to_metrics_target_project_id.rb b/db/migrate/20200723128332_add_fk_to_metrics_target_project_id.rb
new file mode 100644
index 00000000000..6536b20b9c1
--- /dev/null
+++ b/db/migrate/20200723128332_add_fk_to_metrics_target_project_id.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class AddFkToMetricsTargetProjectId < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index(:merge_request_metrics, :target_project_id)
+    add_concurrent_foreign_key(:merge_request_metrics, :projects, column: :target_project_id, on_delete: :cascade)
+  end
+
+  def down
+    remove_foreign_key(:merge_request_metrics, column: :target_project_id)
+    remove_concurrent_index(:merge_request_metrics, :target_project_id)
+  end
+end
diff --git a/db/migrate/20200729181641_add_index_to_resource_milestone_events_add_events.rb b/db/migrate/20200729181641_add_index_to_resource_milestone_events_add_events.rb
new file mode 100644
index 00000000000..438f9c6bfa3
--- /dev/null
+++ b/db/migrate/20200729181641_add_index_to_resource_milestone_events_add_events.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+class AddIndexToResourceMilestoneEventsAddEvents < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  INDEX_NAME = 'index_resource_milestone_events_on_milestone_id_and_add_action'
+  ADD_ACTION = '1'
+
+  def up
+    # Index add milestone events
+    add_concurrent_index :resource_milestone_events, :milestone_id, where: "action = #{ADD_ACTION}", name: INDEX_NAME
+  end
+
+  def down
+    remove_concurrent_index :resource_milestone_events, :milestone_id, name: INDEX_NAME
+  end
+end
diff --git a/db/post_migrate/20200723132258_schedule_copy_of_mr_target_project_id_to_mr_metrics.rb b/db/post_migrate/20200723132258_schedule_copy_of_mr_target_project_id_to_mr_metrics.rb
new file mode 100644
index 00000000000..bca703121bc
--- /dev/null
+++ b/db/post_migrate/20200723132258_schedule_copy_of_mr_target_project_id_to_mr_metrics.rb
@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+class ScheduleCopyOfMrTargetProjectIdToMrMetrics < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  INTERVAL = 2.minutes.to_i
+  BATCH_SIZE = 5_000
+  MIGRATION = 'CopyMergeRequestTargetProjectToMergeRequestMetrics'
+
+  disable_ddl_transaction!
+
+  class MergeRequest < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'merge_requests'
+  end
+
+  def up
+    MergeRequest.reset_column_information
+
+    queue_background_migration_jobs_by_range_at_intervals(
+      MergeRequest,
+      MIGRATION,
+      INTERVAL,
+      batch_size: BATCH_SIZE
+    )
+  end
+
+  def down
+    # noop
+  end
+end
diff --git a/db/schema_migrations/20200723125205 b/db/schema_migrations/20200723125205
new file mode 100644
index 00000000000..ca259978658
--- /dev/null
+++ b/db/schema_migrations/20200723125205
@@ -0,0 +1 @@
+630029f7d90da29022404146ce8c488108a2232d2bfd0864a6f5d659f3999af8
\ No newline at end of file
diff --git a/db/schema_migrations/20200723128332 b/db/schema_migrations/20200723128332
new file mode 100644
index 00000000000..2e180ef80f1
--- /dev/null
+++ b/db/schema_migrations/20200723128332
@@ -0,0 +1 @@
+7d6f3601187c98f091cb0c5449ff7c6ca53392f006435223dcc067e4a73dab11
\ No newline at end of file
diff --git a/db/schema_migrations/20200723132258 b/db/schema_migrations/20200723132258
new file mode 100644
index 00000000000..3a3c0341f42
--- /dev/null
+++ b/db/schema_migrations/20200723132258
@@ -0,0 +1 @@
+b3fcb58bbeae8af800a32158a8d272ec524594391e96357fdad955f70864bc95
\ No newline at end of file
diff --git a/db/schema_migrations/20200729181641 b/db/schema_migrations/20200729181641
new file mode 100644
index 00000000000..0d1d959c5a5
--- /dev/null
+++ b/db/schema_migrations/20200729181641
@@ -0,0 +1 @@
+5dc4cbfc6d7e79e5909e5250f382bc3c9fa4246b8f2aed81404899aee4eef81b
\ No newline at end of file
diff --git a/db/structure.sql b/db/structure.sql
index a8a32f7dc17..8fcc46d98a8 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -13038,7 +13038,8 @@ CREATE TABLE public.merge_request_metrics (
     first_approved_at timestamp with time zone,
     first_reassigned_at timestamp with time zone,
     added_lines integer,
-    removed_lines integer
+    removed_lines integer,
+    target_project_id integer
 );
 
 CREATE SEQUENCE public.merge_request_metrics_id_seq
@@ -19881,6 +19882,8 @@ CREATE INDEX index_merge_request_metrics_on_merged_by_id ON public.merge_request
 
 CREATE INDEX index_merge_request_metrics_on_pipeline_id ON public.merge_request_metrics USING btree (pipeline_id);
 
+CREATE INDEX index_merge_request_metrics_on_target_project_id ON public.merge_request_metrics USING btree (target_project_id);
+
 CREATE UNIQUE INDEX index_merge_request_user_mentions_on_note_id ON public.merge_request_user_mentions USING btree (note_id) WHERE (note_id IS NOT NULL);
 
 CREATE INDEX index_merge_requests_closing_issues_on_issue_id ON public.merge_requests_closing_issues USING btree (issue_id);
@@ -20465,6 +20468,8 @@ CREATE INDEX index_resource_milestone_events_on_merge_request_id ON public.resou
 
 CREATE INDEX index_resource_milestone_events_on_milestone_id ON public.resource_milestone_events USING btree (milestone_id);
 
+CREATE INDEX index_resource_milestone_events_on_milestone_id_and_add_action ON public.resource_milestone_events USING btree (milestone_id) WHERE (action = 1);
+
 CREATE INDEX index_resource_milestone_events_on_user_id ON public.resource_milestone_events USING btree (user_id);
 
 CREATE INDEX index_resource_state_events_on_epic_id ON public.resource_state_events USING btree (epic_id);
@@ -21385,6 +21390,9 @@ ALTER TABLE ONLY public.path_locks
 ALTER TABLE ONLY public.clusters_applications_prometheus
     ADD CONSTRAINT fk_557e773639 FOREIGN KEY (cluster_id) REFERENCES public.clusters(id) ON DELETE CASCADE;
 
+ALTER TABLE ONLY public.merge_request_metrics
+    ADD CONSTRAINT fk_56067dcb44 FOREIGN KEY (target_project_id) REFERENCES public.projects(id) ON DELETE CASCADE;
+
 ALTER TABLE ONLY public.vulnerability_feedback
     ADD CONSTRAINT fk_563ff1912e FOREIGN KEY (merge_request_id) REFERENCES public.merge_requests(id) ON DELETE SET NULL;
 
diff --git a/doc/api/feature_flags.md b/doc/api/feature_flags.md
index bb4bc2bba97..479f82914a9 100644
--- a/doc/api/feature_flags.md
+++ b/doc/api/feature_flags.md
@@ -96,13 +96,13 @@ Example response:
 Gets a single feature flag.
 
 ```plaintext
-GET /projects/:id/feature_flags/:name
+GET /projects/:id/feature_flags/:feature_flag_name
 ```
 
 | Attribute           | Type             | Required   | Description                                                                            |
 | ------------------- | ---------------- | ---------- | ---------------------------------------------------------------------------------------|
 | `id`                | integer/string   | yes        | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding).       |
-| `name`              | string           | yes        | The name of the feature flag.                                                          |
+| `feature_flag_name` | string           | yes        | The name of the feature flag.                                                          |
 
 ```shell
 curl --header "PRIVATE-TOKEN: <your_access_token>" https://gitlab.example.com/api/v4/projects/1/feature_flags/awesome_feature
@@ -201,15 +201,16 @@ Example response:
 Updates a feature flag.
 
 ```plaintext
-PUT /projects/:id/feature_flags/:name
+PUT /projects/:id/feature_flags/:feature_flag_name
 ```
 
 | Attribute           | Type             | Required   | Description                                                                            |
 | ------------------- | ---------------- | ---------- | ---------------------------------------------------------------------------------------|
 | `id`                | integer/string   | yes        | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding).       |
-| `name`              | string           | yes        | The name of the feature flag.                                                          |
+| `feature_flag_name` | string           | yes        | The current name of the feature flag.                                                  |
 | `description`       | string           | no         | The description of the feature flag.                                                   |
 | `active`            | boolean          | no         | The active state of the flag. [Supported](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/38350) in GitLab 13.3 and later. |
+| `name`              | string           | no         | The new name of the feature flag. [Supported](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/38350) in GitLab 13.3 and later. |
 | `strategies`        | JSON             | no         | The feature flag [strategies](../operations/feature_flags.md#feature-flag-strategies). |
 | `strategies:id`     | JSON             | no         | The feature flag strategy id.                                                          |
 | `strategies:name`   | JSON             | no         | The strategy name.                                                                     |
@@ -275,13 +276,13 @@ Example response:
 Deletes a feature flag.
 
 ```plaintext
-DELETE /projects/:id/feature_flags/:name
+DELETE /projects/:id/feature_flags/:feature_flag_name
 ```
 
 | Attribute           | Type             | Required   | Description                                                                            |
 | ------------------- | ---------------- | ---------- | ---------------------------------------------------------------------------------------|
 | `id`                | integer/string   | yes        | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding).       |
-| `name`              | string           | yes        | The name of the feature flag.  |
+| `feature_flag_name` | string           | yes        | The name of the feature flag.                                                          |
 
 ```shell
 curl --header "PRIVATE-TOKEN: <your_access_token>" --request DELETE "https://gitlab.example.com/api/v4/projects/1/feature_flags/awesome_feature"
diff --git a/doc/api/graphql/reference/gitlab_schema.graphql b/doc/api/graphql/reference/gitlab_schema.graphql
index c7f84c84e63..b178e866bd6 100644
--- a/doc/api/graphql/reference/gitlab_schema.graphql
+++ b/doc/api/graphql/reference/gitlab_schema.graphql
@@ -3950,6 +3950,11 @@ type Epic implements Noteable {
     """
     last: Int
 
+    """
+    Filter epics by milestone title, computed from epic's issues
+    """
+    milestoneTitle: String
+
     """
     Search query for epic title or description
     """
@@ -5247,6 +5252,11 @@ type Group {
     """
     labelName: [String!]
 
+    """
+    Filter epics by milestone title, computed from epic's issues
+    """
+    milestoneTitle: String
+
     """
     Search query for epic title or description
     """
@@ -5324,6 +5334,11 @@ type Group {
     """
     last: Int
 
+    """
+    Filter epics by milestone title, computed from epic's issues
+    """
+    milestoneTitle: String
+
     """
     Search query for epic title or description
     """
diff --git a/doc/api/graphql/reference/gitlab_schema.json b/doc/api/graphql/reference/gitlab_schema.json
index 021fcf566d3..469e3615746 100644
--- a/doc/api/graphql/reference/gitlab_schema.json
+++ b/doc/api/graphql/reference/gitlab_schema.json
@@ -11050,6 +11050,16 @@
                   },
                   "defaultValue": null
                 },
+                {
+                  "name": "milestoneTitle",
+                  "description": "Filter epics by milestone title, computed from epic's issues",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
                 {
                   "name": "iidStartsWith",
                   "description": "Filter epics by iid for autocomplete",
@@ -14693,6 +14703,16 @@
                   },
                   "defaultValue": null
                 },
+                {
+                  "name": "milestoneTitle",
+                  "description": "Filter epics by milestone title, computed from epic's issues",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
                 {
                   "name": "iidStartsWith",
                   "description": "Filter epics by iid for autocomplete",
@@ -14822,6 +14842,16 @@
                   },
                   "defaultValue": null
                 },
+                {
+                  "name": "milestoneTitle",
+                  "description": "Filter epics by milestone title, computed from epic's issues",
+                  "type": {
+                    "kind": "SCALAR",
+                    "name": "String",
+                    "ofType": null
+                  },
+                  "defaultValue": null
+                },
                 {
                   "name": "iidStartsWith",
                   "description": "Filter epics by iid for autocomplete",
diff --git a/doc/development/documentation/structure.md b/doc/development/documentation/structure.md
index f8f471cbfa0..15a8728bef8 100644
--- a/doc/development/documentation/structure.md
+++ b/doc/development/documentation/structure.md
@@ -190,7 +190,7 @@ conversions can be viewed on Google Analytics by navigating to **Behavior > Even
 
 > [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/36576/) in GitLab 13.2 as GitLab Development documentation.
 
-'Good practice' examples demonstrate encouraged ways of writing code while comparing with examples of practices to avoid.
+"Good practice" examples demonstrate encouraged ways of writing code while comparing with examples of practices to avoid.
 These examples are labeled as "Bad" or "Good".
 In GitLab development guidelines, when presenting the cases, it is recommended
 to follow a **first-bad-then-good** strategy. First demonstrate the "Bad" practice (how things _could_ be done, which is often still working code),
@@ -205,3 +205,8 @@ With many examples being presented, a clear separation helps the reader to go di
 Consider offering an explanation (for example, a comment, a link to a resource, etc.) on why something is bad practice.
 - Better and best cases can be considered part of the good case(s) code block.
 In the same code block, precede each with comments: `# Better` and `# Best`.
+
+NOTE: **Note:**
+While the bad-then-good approach is acceptable for the GitLab development guidelines, do not use it
+for user documentation. For user documentation, use "Do" and "Don't." For example, see the
+[Pajamas Design System](https://design.gitlab.com/content/punctuation).
diff --git a/doc/user/project/issues/index.md b/doc/user/project/issues/index.md
index 9113f5344ba..a6911d183c1 100644
--- a/doc/user/project/issues/index.md
+++ b/doc/user/project/issues/index.md
@@ -109,6 +109,15 @@ Key actions for Issues include:
 On an issue's page, you can view [all aspects of the issue](issue_data_and_actions.md),
 and modify them if you have the necessary [permissions](../../permissions.md).
 
+#### Real-time sidebar **(CORE ONLY)**
+
+> - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/17589) in GitLab 13.3.
+> - It cannot be enabled or disabled per-project.
+> - It's not recommended for production use.
+
+Assignees in the sidebar are updated in real time. This feature is **disabled by default**.
+To enable, you need to enable [ActionCable in-app mode](https://docs.gitlab.com/omnibus/settings/actioncable.html).
+
 ### Issues list
 
 ![Project issues list view](img/project_issues_list_view.png)
diff --git a/lib/gitlab/background_migration/copy_merge_request_target_project_to_merge_request_metrics.rb b/lib/gitlab/background_migration/copy_merge_request_target_project_to_merge_request_metrics.rb
new file mode 100644
index 00000000000..6014ccc12eb
--- /dev/null
+++ b/lib/gitlab/background_migration/copy_merge_request_target_project_to_merge_request_metrics.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+# rubocop:disable Style/Documentation
+
+module Gitlab
+  module BackgroundMigration
+    class CopyMergeRequestTargetProjectToMergeRequestMetrics
+      extend ::Gitlab::Utils::Override
+
+      def perform(start_id, stop_id)
+        ActiveRecord::Base.connection.execute <<~SQL
+          WITH merge_requests_batch AS (
+            SELECT id, target_project_id
+            FROM merge_requests WHERE id BETWEEN #{Integer(start_id)} AND #{Integer(stop_id)}
+          )
+          UPDATE
+            merge_request_metrics
+          SET
+            target_project_id = merge_requests_batch.target_project_id
+          FROM merge_requests_batch
+          WHERE merge_request_metrics.merge_request_id=merge_requests_batch.id
+        SQL
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/experimentation.rb b/lib/gitlab/experimentation.rb
index d3df9be0d63..135601bf483 100644
--- a/lib/gitlab/experimentation.rb
+++ b/lib/gitlab/experimentation.rb
@@ -53,6 +53,9 @@ module Gitlab
       },
       new_create_project_ui: {
         tracking_category: 'Manage::Import::Experiment::NewCreateProjectUi'
+      },
+      terms_opt_in: {
+        tracking_category: 'Growth::Acquisition::Experiment::TermsOptIn'
       }
     }.freeze
 
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index b3481307b51..986c5d78821 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -1629,6 +1629,9 @@ msgstr ""
 msgid "Adding new applications is disabled in your GitLab instance. Please contact your GitLab administrator to get the permission"
 msgstr ""
 
+msgid "Additional Metadata"
+msgstr ""
+
 msgid "Additional minutes"
 msgstr ""
 
@@ -4109,6 +4112,9 @@ msgstr ""
 msgid "By URL"
 msgstr ""
 
+msgid "By clicking Register, I agree that I have read and accepted the GitLab %{linkStart}Terms of Use and Privacy Policy%{linkEnd}"
+msgstr ""
+
 msgid "By default GitLab sends emails in HTML and plain text formats so mail clients can choose what format to use. Disable this option if you only want to send emails in plain text format."
 msgstr ""
 
@@ -15094,6 +15100,12 @@ msgstr ""
 msgid "MetricsSettings|User's local timezone"
 msgstr ""
 
+msgid "Metrics|1. Define and preview panel"
+msgstr ""
+
+msgid "Metrics|2. Paste panel YAML into dashboard"
+msgstr ""
+
 msgid "Metrics|Add metric"
 msgstr ""
 
@@ -15115,6 +15127,9 @@ msgstr ""
 msgid "Metrics|Copy YAML"
 msgstr ""
 
+msgid "Metrics|Copy and paste the panel YAML into your dashboard YAML file."
+msgstr ""
+
 msgid "Metrics|Create custom dashboard %{fileName}"
 msgstr ""
 
@@ -15133,10 +15148,10 @@ msgstr ""
 msgid "Metrics|Current"
 msgstr ""
 
-msgid "Metrics|Define and preview panel"
+msgid "Metrics|Dashboard files can be found in %{codeStart}.gitlab/dashboards%{codeEnd} at the root of this project."
 msgstr ""
 
-msgid "Metrics|Define panel YAML to preview panel."
+msgid "Metrics|Define panel YAML below to preview panel."
 msgstr ""
 
 msgid "Metrics|Delete metric"
@@ -16914,6 +16929,12 @@ msgstr ""
 msgid "PackageRegistry|Add NuGet Source"
 msgstr ""
 
+msgid "PackageRegistry|App group: %{group}"
+msgstr ""
+
+msgid "PackageRegistry|App name: %{name}"
+msgstr ""
+
 msgid "PackageRegistry|Commit %{link} on branch %{branch}"
 msgstr ""
 
@@ -17004,6 +17025,9 @@ msgstr ""
 msgid "PackageRegistry|Learn how to %{noPackagesLinkStart}publish and share your packages%{noPackagesLinkEnd} with GitLab."
 msgstr ""
 
+msgid "PackageRegistry|License information located at %{link}"
+msgstr ""
+
 msgid "PackageRegistry|Manually Published"
 msgstr ""
 
@@ -17046,6 +17070,9 @@ msgstr ""
 msgid "PackageRegistry|PyPi"
 msgstr ""
 
+msgid "PackageRegistry|Recipe: %{recipe}"
+msgstr ""
+
 msgid "PackageRegistry|Registry Setup"
 msgstr ""
 
@@ -17055,6 +17082,9 @@ msgstr ""
 msgid "PackageRegistry|Sorry, your filter produced no results"
 msgstr ""
 
+msgid "PackageRegistry|Source project located at %{link}"
+msgstr ""
+
 msgid "PackageRegistry|There are no %{packageType} packages yet"
 msgstr ""
 
diff --git a/spec/controllers/projects/issues_controller_spec.rb b/spec/controllers/projects/issues_controller_spec.rb
index f9580c79390..8b113105cd6 100644
--- a/spec/controllers/projects/issues_controller_spec.rb
+++ b/spec/controllers/projects/issues_controller_spec.rb
@@ -964,6 +964,33 @@ RSpec.describe Projects::IssuesController do
         expect { issue.update(description: [issue.description, labels].join(' ')) }
           .not_to exceed_query_limit(control_count + 2 * labels.count)
       end
+
+      context 'real-time sidebar feature flag' do
+        using RSpec::Parameterized::TableSyntax
+
+        let_it_be(:project) { create(:project, :public) }
+        let_it_be(:issue) { create(:issue, project: project) }
+
+        where(:action_cable_in_app_enabled, :feature_flag_enabled, :gon_feature_flag) do
+          true  | true  | true
+          true  | false | true
+          false | true  | true
+          false | false | false
+        end
+
+        with_them do
+          before do
+            expect(Gitlab::ActionCable::Config).to receive(:in_app?).and_return(action_cable_in_app_enabled)
+            stub_feature_flags(real_time_issue_sidebar: feature_flag_enabled)
+          end
+
+          it 'broadcasts to the issues channel based on ActionCable and feature flag values' do
+            go(id: issue.to_param)
+
+            expect(Gon.features).to include('realTimeIssueSidebar' => gon_feature_flag)
+          end
+        end
+      end
     end
 
     describe 'GET #realtime_changes' do
diff --git a/spec/controllers/registrations_controller_spec.rb b/spec/controllers/registrations_controller_spec.rb
index 66caa58666f..5a7b57bd512 100644
--- a/spec/controllers/registrations_controller_spec.rb
+++ b/spec/controllers/registrations_controller_spec.rb
@@ -52,6 +52,53 @@ RSpec.describe RegistrationsController do
         expect(response).to redirect_to(new_user_session_path(anchor: 'register-pane'))
       end
     end
+
+    context 'with sign up flow and terms_opt_in experiment being enabled' do
+      before do
+        stub_experiment(signup_flow: true, terms_opt_in: true)
+
+        expect(Gitlab::Tracking).to receive(:event).with(
+          'Growth::Acquisition::Experiment::SignUpFlow',
+          'start',
+          label: anything,
+          property: 'experimental_group'
+        )
+      end
+
+      context 'when user is not part of the experiment' do
+        before do
+          stub_experiment_for_user(signup_flow: true, terms_opt_in: false)
+        end
+
+        it 'tracks event with right parameters' do
+          expect(Gitlab::Tracking).to receive(:event).with(
+            'Growth::Acquisition::Experiment::TermsOptIn',
+            'start',
+            label: anything,
+            property: 'control_group'
+          )
+
+          subject
+        end
+      end
+
+      context 'when user is part of the experiment' do
+        before do
+          stub_experiment_for_user(signup_flow: true, terms_opt_in: true)
+        end
+
+        it 'tracks event with right parameters' do
+          expect(Gitlab::Tracking).to receive(:event).with(
+            'Growth::Acquisition::Experiment::TermsOptIn',
+            'start',
+            label: anything,
+            property: 'experimental_group'
+          )
+
+          subject
+        end
+      end
+    end
   end
 
   describe '#create' do
@@ -250,6 +297,37 @@ RSpec.describe RegistrationsController do
         expect(subject.current_user).to be_present
         expect(subject.current_user.terms_accepted?).to be(true)
       end
+
+      context 'when experiment terms_opt_in is enabled' do
+        before do
+          stub_experiment(terms_opt_in: true)
+        end
+
+        context 'when user is part of the experiment' do
+          before do
+            stub_experiment_for_user(terms_opt_in: true)
+          end
+
+          it 'creates the user with accepted terms' do
+            post :create, params: user_params
+
+            expect(subject.current_user).to be_present
+            expect(subject.current_user.terms_accepted?).to be(true)
+          end
+        end
+
+        context 'when user is not part of the experiment' do
+          before do
+            stub_experiment_for_user(terms_opt_in: false)
+          end
+
+          it 'creates the user without accepted terms' do
+            post :create, params: user_params
+
+            expect(flash[:alert]).to eq(_('You must accept our Terms of Service and privacy policy in order to register an account'))
+          end
+        end
+      end
     end
 
     describe 'tracking data' do
@@ -281,6 +359,48 @@ RSpec.describe RegistrationsController do
           post :create, params: user_params
         end
       end
+
+      context 'with sign up flow and terms_opt_in experiment being enabled' do
+        subject { post :create, params: user_params }
+
+        before do
+          stub_experiment(signup_flow: true, terms_opt_in: true)
+        end
+
+        context 'when user is not part of the experiment' do
+          before do
+            stub_experiment_for_user(signup_flow: true, terms_opt_in: false)
+          end
+
+          it 'tracks event with right parameters' do
+            expect(Gitlab::Tracking).to receive(:event).with(
+              'Growth::Acquisition::Experiment::TermsOptIn',
+              'end',
+              label: anything,
+              property: 'control_group'
+            )
+
+            subject
+          end
+        end
+
+        context 'when user is part of the experiment' do
+          before do
+            stub_experiment_for_user(signup_flow: true, terms_opt_in: true)
+          end
+
+          it 'tracks event with right parameters' do
+            expect(Gitlab::Tracking).to receive(:event).with(
+              'Growth::Acquisition::Experiment::TermsOptIn',
+              'end',
+              label: anything,
+              property: 'experimental_group'
+            )
+
+            subject
+          end
+        end
+      end
     end
 
     it "logs a 'User Created' message" do
diff --git a/spec/features/users/signup_spec.rb b/spec/features/users/signup_spec.rb
index af2ecfec498..332be055027 100644
--- a/spec/features/users/signup_spec.rb
+++ b/spec/features/users/signup_spec.rb
@@ -509,4 +509,29 @@ RSpec.describe 'With experimental flow' do
       expect(page).to have_current_path(new_project_path)
     end
   end
+
+  context 'when terms_opt_in experimental is enabled' do
+    include TermsHelper
+
+    before do
+      enforce_terms
+      stub_experiment(signup_flow: true, terms_opt_in: true)
+      stub_experiment_for_user(signup_flow: true, terms_opt_in: true)
+    end
+
+    it 'terms are checked by default' do
+      new_user = build_stubbed(:user)
+      visit new_user_registration_path
+
+      fill_in 'new_user_username', with: new_user.username
+      fill_in 'new_user_email', with: new_user.email
+      fill_in 'new_user_first_name', with: new_user.first_name
+      fill_in 'new_user_last_name', with: new_user.last_name
+      fill_in 'new_user_password', with: new_user.password
+
+      click_button 'Register'
+
+      expect(current_path).to eq users_sign_up_welcome_path
+    end
+  end
 end
diff --git a/spec/frontend/monitoring/components/dashboard_header_spec.js b/spec/frontend/monitoring/components/dashboard_header_spec.js
index cad2a2c396c..64e342f28c3 100644
--- a/spec/frontend/monitoring/components/dashboard_header_spec.js
+++ b/spec/frontend/monitoring/components/dashboard_header_spec.js
@@ -18,6 +18,7 @@ import {
 import { redirectTo } from '~/lib/utils/url_utility';
 
 const mockProjectPath = 'https://path/to/project';
+const mockAddDashboardDocPath = '/doc/add-dashboard';
 
 jest.mock('~/lib/utils/url_utility', () => ({
   redirectTo: jest.fn(),
@@ -362,6 +363,7 @@ describe('Dashboard header', () => {
   describe('actions menu modals', () => {
     beforeEach(() => {
       store.state.monitoringDashboard.projectPath = mockProjectPath;
+      store.state.monitoringDashboard.addDashboardDocumentationPath = mockAddDashboardDocPath;
       setupAllDashboards(store);
 
       createShallowWrapper();
@@ -381,6 +383,9 @@ describe('Dashboard header', () => {
 
     it('"Create new dashboard" modal contains correct buttons', () => {
       expect(findCreateDashboardModal().props('projectPath')).toBe(mockProjectPath);
+      expect(findCreateDashboardModal().props('addDashboardDocumentationPath')).toBe(
+        mockAddDashboardDocPath,
+      );
     });
 
     it('"Duplicate Dashboard" opens up a modal', () => {
diff --git a/spec/frontend/monitoring/components/dashboard_panel_builder_spec.js b/spec/frontend/monitoring/components/dashboard_panel_builder_spec.js
index cf7a1673a10..a9ed554fd98 100644
--- a/spec/frontend/monitoring/components/dashboard_panel_builder_spec.js
+++ b/spec/frontend/monitoring/components/dashboard_panel_builder_spec.js
@@ -34,6 +34,8 @@ describe('dashboard invalid url parameters', () => {
   const findTxtArea = () => findForm().find(GlFormTextarea);
   const findSubmitBtn = () => findForm().find('[type="submit"]');
   const findClipboardCopyBtn = () => wrapper.find({ ref: 'clipboardCopyBtn' });
+  const findViewDocumentationBtn = () => wrapper.find({ ref: 'viewDocumentationBtn' });
+  const findOpenRepositoryBtn = () => wrapper.find({ ref: 'openRepositoryBtn' });
   const findPanel = () => wrapper.find(DashboardPanel);
 
   beforeEach(() => {
@@ -108,6 +110,26 @@ describe('dashboard invalid url parameters', () => {
     });
   });
 
+  describe('instructions card', () => {
+    const mockDocsPath = '/docs-path';
+    const mockProjectPath = '/project-path';
+
+    beforeEach(() => {
+      store.state.monitoringDashboard.addDashboardDocumentationPath = mockDocsPath;
+      store.state.monitoringDashboard.projectPath = mockProjectPath;
+
+      createComponent();
+    });
+
+    it('displays next actions for the user', () => {
+      expect(findViewDocumentationBtn().exists()).toBe(true);
+      expect(findViewDocumentationBtn().attributes('href')).toBe(mockDocsPath);
+
+      expect(findOpenRepositoryBtn().exists()).toBe(true);
+      expect(findOpenRepositoryBtn().attributes('href')).toBe(mockProjectPath);
+    });
+  });
+
   describe('when there is an error', () => {
     const mockError = 'an error ocurred!';
 
diff --git a/spec/frontend/monitoring/fixture_data.js b/spec/frontend/monitoring/fixture_data.js
index 46dda302639..30040d3f89f 100644
--- a/spec/frontend/monitoring/fixture_data.js
+++ b/spec/frontend/monitoring/fixture_data.js
@@ -29,7 +29,6 @@ const datasetState = stateAndPropsFromDataset(
 // https://gitlab.com/gitlab-org/gitlab/-/issues/229256
 export const dashboardProps = {
   ...datasetState.dataProps,
-  addDashboardDocumentationPath: 'https://path/to/docs',
   alertsEndpoint: null,
 };
 
diff --git a/spec/frontend/monitoring/mock_data.js b/spec/frontend/monitoring/mock_data.js
index adb64b83dfa..82c3879a258 100644
--- a/spec/frontend/monitoring/mock_data.js
+++ b/spec/frontend/monitoring/mock_data.js
@@ -611,7 +611,6 @@ export const storeVariables = [
 
 export const dashboardHeaderProps = {
   defaultBranch: 'master',
-  addDashboardDocumentationPath: 'https://path/to/docs',
   isRearrangingPanels: false,
   selectedTimeRange: {
     start: '2020-01-01T00:00:00.000Z',
diff --git a/spec/frontend/packages/details/components/__snapshots__/history_element_spec.js.snap b/spec/frontend/packages/details/components/__snapshots__/history_element_spec.js.snap
index dff783a2b8d..a1751d69c70 100644
--- a/spec/frontend/packages/details/components/__snapshots__/history_element_spec.js.snap
+++ b/spec/frontend/packages/details/components/__snapshots__/history_element_spec.js.snap
@@ -2,7 +2,7 @@
 
 exports[`History Element renders the correct markup 1`] = `
 <li
-  class="timeline-entry system-note note-wrapper gl-my-6!"
+  class="timeline-entry system-note note-wrapper gl-mb-6!"
 >
   <div
     class="timeline-entry-inner"
diff --git a/spec/frontend/packages/details/components/additional_metadata_spec.js b/spec/frontend/packages/details/components/additional_metadata_spec.js
new file mode 100644
index 00000000000..b2337b86740
--- /dev/null
+++ b/spec/frontend/packages/details/components/additional_metadata_spec.js
@@ -0,0 +1,119 @@
+import { shallowMount } from '@vue/test-utils';
+import { GlLink, GlSprintf } from '@gitlab/ui';
+import DetailsRow from '~/registry/shared/components/details_row.vue';
+import component from '~/packages/details/components/additional_metadata.vue';
+
+import { mavenPackage, conanPackage, nugetPackage, npmPackage } from '../../mock_data';
+
+describe('Package Additional Metadata', () => {
+  let wrapper;
+  const defaultProps = {
+    packageEntity: { ...mavenPackage },
+  };
+
+  const mountComponent = props => {
+    wrapper = shallowMount(component, {
+      propsData: { ...defaultProps, ...props },
+      stubs: {
+        DetailsRow,
+        GlSprintf,
+      },
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+    wrapper = null;
+  });
+
+  const findTitle = () => wrapper.find('[data-testid="title"]');
+  const findMainArea = () => wrapper.find('[data-testid="main"]');
+  const findNugetSource = () => wrapper.find('[data-testid="nuget-source"]');
+  const findNugetLicense = () => wrapper.find('[data-testid="nuget-license"]');
+  const findConanRecipe = () => wrapper.find('[data-testid="conan-recipe"]');
+  const findMavenApp = () => wrapper.find('[data-testid="maven-app"]');
+  const findMavenGroup = () => wrapper.find('[data-testid="maven-group"]');
+  const findElementLink = container => container.find(GlLink);
+
+  it('has the correct title', () => {
+    mountComponent();
+
+    const title = findTitle();
+
+    expect(title.exists()).toBe(true);
+    expect(title.text()).toBe('Additional Metadata');
+  });
+
+  describe.each`
+    packageEntity   | visible  | metadata
+    ${mavenPackage} | ${true}  | ${'maven_metadatum'}
+    ${conanPackage} | ${true}  | ${'conan_metadatum'}
+    ${nugetPackage} | ${true}  | ${'nuget_metadatum'}
+    ${npmPackage}   | ${false} | ${null}
+  `('Component visibility', ({ packageEntity, visible, metadata }) => {
+    it(`Is ${visible} that the component markup is visible when the package is ${packageEntity.package_type}`, () => {
+      mountComponent({ packageEntity });
+
+      expect(findTitle().exists()).toBe(visible);
+      expect(findMainArea().exists()).toBe(visible);
+    });
+
+    it(`The component is hidden if ${metadata} is missing`, () => {
+      mountComponent({ packageEntity: { ...packageEntity, [metadata]: null } });
+
+      expect(findTitle().exists()).toBe(false);
+      expect(findMainArea().exists()).toBe(false);
+    });
+  });
+
+  describe('nuget metadata', () => {
+    beforeEach(() => {
+      mountComponent({ packageEntity: nugetPackage });
+    });
+
+    it.each`
+      name         | finderFunction      | text                                                | link             | icon
+      ${'source'}  | ${findNugetSource}  | ${'Source project located at project-foo-url'}      | ${'project_url'} | ${'project'}
+      ${'license'} | ${findNugetLicense} | ${'License information located at license-foo-url'} | ${'license_url'} | ${'license'}
+    `('$name element', ({ finderFunction, text, link, icon }) => {
+      const element = finderFunction();
+      expect(element.exists()).toBe(true);
+      expect(element.text()).toBe(text);
+      expect(element.props('icon')).toBe(icon);
+      expect(findElementLink(element).attributes('href')).toBe(nugetPackage.nuget_metadatum[link]);
+    });
+  });
+
+  describe('conan metadata', () => {
+    beforeEach(() => {
+      mountComponent({ packageEntity: conanPackage });
+    });
+
+    it.each`
+      name        | finderFunction     | text                                                        | icon
+      ${'recipe'} | ${findConanRecipe} | ${'Recipe: conan-package/1.0.0@conan+conan-package/stable'} | ${'information-o'}
+    `('$name element', ({ finderFunction, text, icon }) => {
+      const element = finderFunction();
+      expect(element.exists()).toBe(true);
+      expect(element.text()).toBe(text);
+      expect(element.props('icon')).toBe(icon);
+    });
+  });
+
+  describe('maven metadata', () => {
+    beforeEach(() => {
+      mountComponent();
+    });
+
+    it.each`
+      name       | finderFunction    | text                         | icon
+      ${'app'}   | ${findMavenApp}   | ${'App name: test-app'}      | ${'information-o'}
+      ${'group'} | ${findMavenGroup} | ${'App group: com.test.app'} | ${'information-o'}
+    `('$name element', ({ finderFunction, text, icon }) => {
+      const element = finderFunction();
+      expect(element.exists()).toBe(true);
+      expect(element.text()).toBe(text);
+      expect(element.props('icon')).toBe(icon);
+    });
+  });
+});
diff --git a/spec/frontend/packages/details/components/app_spec.js b/spec/frontend/packages/details/components/app_spec.js
index a22588be39c..227d2200ff0 100644
--- a/spec/frontend/packages/details/components/app_spec.js
+++ b/spec/frontend/packages/details/components/app_spec.js
@@ -17,6 +17,7 @@ import NugetInstallation from '~/packages/details/components/nuget_installation.
 import PypiInstallation from '~/packages/details/components/pypi_installation.vue';
 import DependencyRow from '~/packages/details/components/dependency_row.vue';
 import PackageHistory from '~/packages/details/components/package_history.vue';
+import AdditionalMetadata from '~/packages/details/components/additional_metadata.vue';
 import PackageActivity from '~/packages/details/components/activity.vue';
 import {
   conanPackage,
@@ -99,6 +100,7 @@ describe('PackagesApp', () => {
   const noDependenciesMessage = () => wrapper.find('[data-testid="no-dependencies-message"]');
   const dependencyRows = () => wrapper.findAll(DependencyRow);
   const findPackageHistory = () => wrapper.find(PackageHistory);
+  const findAdditionalMetadata = () => wrapper.find(AdditionalMetadata);
   const findPackageActivity = () => wrapper.find(PackageActivity);
   const findOldPackageInfo = () => wrapper.find('[data-testid="old-package-info"]');
 
@@ -295,30 +297,38 @@ describe('PackagesApp', () => {
     });
   });
 
+  it('package history has the right props', () => {
+    createComponent({ oneColumnView: true });
+    expect(findPackageHistory().props('packageEntity')).toEqual(wrapper.vm.packageEntity);
+    expect(findPackageHistory().props('projectName')).toEqual(wrapper.vm.projectName);
+  });
+
+  it('additional metadata has the right props', () => {
+    createComponent({ oneColumnView: true });
+    expect(findAdditionalMetadata().props('packageEntity')).toEqual(wrapper.vm.packageEntity);
+  });
+
   describe('one column layout feature flag', () => {
-    describe.each`
-      oneColumnView | history  | oldInfo  | activity
-      ${true}       | ${true}  | ${false} | ${false}
-      ${false}      | ${false} | ${true}  | ${true}
-    `(
-      'with oneColumnView set to $oneColumnView',
-      ({ oneColumnView, history, oldInfo, activity }) => {
-        beforeEach(() => {
-          createComponent({ oneColumnView });
-        });
+    describe.each([true, false])('with oneColumnView set to %s', oneColumnView => {
+      beforeEach(() => {
+        createComponent({ oneColumnView });
+      });
 
-        it('package history', () => {
-          expect(findPackageHistory().exists()).toBe(history);
-        });
+      it(`is ${oneColumnView} that package history is visible`, () => {
+        expect(findPackageHistory().exists()).toBe(oneColumnView);
+      });
 
-        it('old info block', () => {
-          expect(findOldPackageInfo().exists()).toBe(oldInfo);
-        });
+      it(`is ${oneColumnView} that additional metadata is visible`, () => {
+        expect(findAdditionalMetadata().exists()).toBe(oneColumnView);
+      });
 
-        it('package activity', () => {
-          expect(findPackageActivity().exists()).toBe(activity);
-        });
-      },
-    );
+      it(`is ${!oneColumnView} that old info block is visible`, () => {
+        expect(findOldPackageInfo().exists()).toBe(!oneColumnView);
+      });
+
+      it(`is ${!oneColumnView} that package activity is visible`, () => {
+        expect(findPackageActivity().exists()).toBe(!oneColumnView);
+      });
+    });
   });
 });
diff --git a/spec/frontend/registry/explorer/components/details_page/details_row_spec.js b/spec/frontend/registry/explorer/components/details_page/details_row_spec.js
deleted file mode 100644
index 95b8e18d677..00000000000
--- a/spec/frontend/registry/explorer/components/details_page/details_row_spec.js
+++ /dev/null
@@ -1,43 +0,0 @@
-import { shallowMount } from '@vue/test-utils';
-import { GlIcon } from '@gitlab/ui';
-import component from '~/registry/explorer/components/details_page/details_row.vue';
-
-describe('DetailsRow', () => {
-  let wrapper;
-
-  const findIcon = () => wrapper.find(GlIcon);
-  const findDefaultSlot = () => wrapper.find('[data-testid="default-slot"]');
-
-  const mountComponent = () => {
-    wrapper = shallowMount(component, {
-      propsData: {
-        icon: 'clock',
-      },
-      slots: {
-        default: '<div data-testid="default-slot"></div>',
-      },
-    });
-  };
-
-  afterEach(() => {
-    wrapper.destroy();
-    wrapper = null;
-  });
-
-  it('contains an icon', () => {
-    mountComponent();
-    expect(findIcon().exists()).toBe(true);
-  });
-
-  it('icon has the correct props', () => {
-    mountComponent();
-    expect(findIcon().props()).toMatchObject({
-      name: 'clock',
-    });
-  });
-
-  it('has a default slot', () => {
-    mountComponent();
-    expect(findDefaultSlot().exists()).toBe(true);
-  });
-});
diff --git a/spec/frontend/registry/explorer/components/details_page/tags_list_row_spec.js b/spec/frontend/registry/explorer/components/details_page/tags_list_row_spec.js
index 9e876d6d8a3..7fb4a3f5db8 100644
--- a/spec/frontend/registry/explorer/components/details_page/tags_list_row_spec.js
+++ b/spec/frontend/registry/explorer/components/details_page/tags_list_row_spec.js
@@ -5,7 +5,7 @@ import ClipboardButton from '~/vue_shared/components/clipboard_button.vue';
 import TimeAgoTooltip from '~/vue_shared/components/time_ago_tooltip.vue';
 import component from '~/registry/explorer/components/details_page/tags_list_row.vue';
 import DeleteButton from '~/registry/explorer/components/delete_button.vue';
-import DetailsRow from '~/registry/explorer/components/details_page/details_row.vue';
+import DetailsRow from '~/registry/shared/components/details_row.vue';
 import {
   REMOVE_TAG_BUTTON_TITLE,
   REMOVE_TAG_BUTTON_DISABLE_TOOLTIP,
diff --git a/spec/frontend/registry/shared/components/details_row_spec.js b/spec/frontend/registry/shared/components/details_row_spec.js
new file mode 100644
index 00000000000..5ae4e0ab37f
--- /dev/null
+++ b/spec/frontend/registry/shared/components/details_row_spec.js
@@ -0,0 +1,71 @@
+import { shallowMount } from '@vue/test-utils';
+import { GlIcon } from '@gitlab/ui';
+import component from '~/registry/shared/components/details_row.vue';
+
+describe('DetailsRow', () => {
+  let wrapper;
+
+  const findIcon = () => wrapper.find(GlIcon);
+  const findDefaultSlot = () => wrapper.find('[data-testid="default-slot"]');
+
+  const mountComponent = props => {
+    wrapper = shallowMount(component, {
+      propsData: {
+        icon: 'clock',
+        ...props,
+      },
+      slots: {
+        default: '<div data-testid="default-slot"></div>',
+      },
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+    wrapper = null;
+  });
+
+  it('has a default slot', () => {
+    mountComponent();
+    expect(findDefaultSlot().exists()).toBe(true);
+  });
+
+  describe('icon prop', () => {
+    it('contains an icon', () => {
+      mountComponent();
+      expect(findIcon().exists()).toBe(true);
+    });
+
+    it('icon has the correct props', () => {
+      mountComponent();
+      expect(findIcon().props()).toMatchObject({
+        name: 'clock',
+      });
+    });
+  });
+
+  describe('padding prop', () => {
+    it('padding has a default', () => {
+      mountComponent();
+      expect(wrapper.classes('gl-py-2')).toBe(true);
+    });
+
+    it('is reflected in the template', () => {
+      mountComponent({ padding: 'gl-py-4' });
+      expect(wrapper.classes('gl-py-4')).toBe(true);
+    });
+  });
+
+  describe('dashed prop', () => {
+    const borderClasses = ['gl-border-b-solid', 'gl-border-gray-100', 'gl-border-b-1'];
+    it('by default component has no border', () => {
+      mountComponent();
+      expect(wrapper.classes).not.toEqual(expect.arrayContaining(borderClasses));
+    });
+
+    it('has a border when dashed is true', () => {
+      mountComponent({ dashed: true });
+      expect(wrapper.classes()).toEqual(expect.arrayContaining(borderClasses));
+    });
+  });
+});
diff --git a/spec/lib/gitlab/background_migration/copy_merge_request_target_project_to_merge_request_metrics_spec.rb b/spec/lib/gitlab/background_migration/copy_merge_request_target_project_to_merge_request_metrics_spec.rb
new file mode 100644
index 00000000000..71bb794d539
--- /dev/null
+++ b/spec/lib/gitlab/background_migration/copy_merge_request_target_project_to_merge_request_metrics_spec.rb
@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::BackgroundMigration::CopyMergeRequestTargetProjectToMergeRequestMetrics, :migration, schema: 20200723125205 do
+  let(:migration) { described_class.new }
+
+  let_it_be(:namespaces) { table(:namespaces) }
+  let_it_be(:projects) { table(:projects) }
+  let_it_be(:merge_requests) { table(:merge_requests) }
+  let_it_be(:metrics) { table(:merge_request_metrics) }
+
+  let!(:namespace) { namespaces.create!(name: 'namespace', path: 'namespace') }
+  let!(:project_1) { projects.create!(namespace_id: namespace.id) }
+  let!(:project_2) { projects.create!(namespace_id: namespace.id) }
+  let!(:merge_request_to_migrate_1) { merge_requests.create!(source_branch: 'a', target_branch: 'b', target_project_id: project_1.id) }
+  let!(:merge_request_to_migrate_2) { merge_requests.create!(source_branch: 'c', target_branch: 'd', target_project_id: project_2.id) }
+  let!(:merge_request_without_metrics) { merge_requests.create!(source_branch: 'e', target_branch: 'f', target_project_id: project_2.id) }
+
+  let!(:metrics_1) { metrics.create!(merge_request_id: merge_request_to_migrate_1.id) }
+  let!(:metrics_2) { metrics.create!(merge_request_id: merge_request_to_migrate_2.id) }
+
+  let(:merge_request_ids) { [merge_request_to_migrate_1.id, merge_request_to_migrate_2.id, merge_request_without_metrics.id] }
+
+  subject { migration.perform(merge_request_ids.min, merge_request_ids.max) }
+
+  it 'copies `target_project_id` to the associated `merge_request_metrics` record' do
+    subject
+
+    expect(metrics_1.reload.target_project_id).to eq(project_1.id)
+    expect(metrics_2.reload.target_project_id).to eq(project_2.id)
+  end
+
+  it 'does not create metrics record when it is missing' do
+    subject
+
+    expect(metrics.find_by_merge_request_id(merge_request_without_metrics.id)).to be_nil
+  end
+end
diff --git a/spec/lib/gitlab/import_export/safe_model_attributes.yml b/spec/lib/gitlab/import_export/safe_model_attributes.yml
index 9528d8d17e7..5d3d8d1d91e 100644
--- a/spec/lib/gitlab/import_export/safe_model_attributes.yml
+++ b/spec/lib/gitlab/import_export/safe_model_attributes.yml
@@ -287,6 +287,7 @@ MergeRequest::Metrics:
 - first_approved_at
 - first_reassigned_at
 - added_lines
+- target_project_id
 - removed_lines
 Ci::Pipeline:
 - id
diff --git a/spec/models/merge_request/metrics_spec.rb b/spec/models/merge_request/metrics_spec.rb
index 4d9e768ecc6..60a8fd21c44 100644
--- a/spec/models/merge_request/metrics_spec.rb
+++ b/spec/models/merge_request/metrics_spec.rb
@@ -8,4 +8,15 @@ RSpec.describe MergeRequest::Metrics do
     it { is_expected.to belong_to(:latest_closed_by).class_name('User') }
     it { is_expected.to belong_to(:merged_by).class_name('User') }
   end
+
+  it 'sets `target_project_id` before save' do
+    merge_request = create(:merge_request)
+    metrics = merge_request.metrics
+
+    metrics.update_column(:target_project_id, nil)
+
+    metrics.save!
+
+    expect(metrics.target_project_id).to eq(merge_request.target_project_id)
+  end
 end
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index 06febddef0c..f123a819224 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -247,24 +247,20 @@ RSpec.describe MergeRequest do
 
   describe 'callbacks' do
     describe '#ensure_merge_request_metrics' do
-      it 'creates metrics after saving' do
-        merge_request = create(:merge_request)
+      let(:merge_request) { create(:merge_request) }
 
+      it 'creates metrics after saving' do
         expect(merge_request.metrics).to be_persisted
         expect(MergeRequest::Metrics.count).to eq(1)
       end
 
       it 'does not duplicate metrics for a merge request' do
-        merge_request = create(:merge_request)
-
         merge_request.mark_as_merged!
 
         expect(MergeRequest::Metrics.count).to eq(1)
       end
 
       it 'does not create duplicated metrics records when MR is concurrently updated' do
-        merge_request = create(:merge_request)
-
         merge_request.metrics.destroy
 
         instance1 = MergeRequest.find(merge_request.id)
@@ -276,6 +272,27 @@ RSpec.describe MergeRequest do
         metrics_records = MergeRequest::Metrics.where(merge_request_id: merge_request.id)
         expect(metrics_records.size).to eq(1)
       end
+
+      it 'syncs the `target_project_id` to the metrics record' do
+        project = create(:project)
+
+        merge_request.update!(target_project: project, state: :closed)
+
+        expect(merge_request.target_project_id).to eq(project.id)
+        expect(merge_request.target_project_id).to eq(merge_request.metrics.target_project_id)
+      end
+
+      context 'when metrics record already exists with NULL target_project_id' do
+        before do
+          merge_request.metrics.update_column(:target_project_id, nil)
+        end
+
+        it 'returns the metrics record' do
+          metrics_record = merge_request.ensure_metrics
+
+          expect(metrics_record).to be_persisted
+        end
+      end
     end
   end
 
diff --git a/spec/services/issues/update_service_spec.rb b/spec/services/issues/update_service_spec.rb
index 77bd540e22f..42452e95f6b 100644
--- a/spec/services/issues/update_service_spec.rb
+++ b/spec/services/issues/update_service_spec.rb
@@ -840,27 +840,27 @@ RSpec.describe Issues::UpdateService, :mailer do
     end
 
     context 'real-time updates' do
+      using RSpec::Parameterized::TableSyntax
+
       let(:update_params) { { assignee_ids: [user2.id] } }
 
-      context 'when broadcast_issue_updates is enabled' do
-        before do
-          stub_feature_flags(broadcast_issue_updates: true)
-        end
-
-        it 'broadcasts to the issues channel' do
-          expect(IssuesChannel).to receive(:broadcast_to).with(issue, event: 'updated')
-
-          update_issue(update_params)
-        end
+      where(:action_cable_in_app_enabled, :feature_flag_enabled, :should_broadcast) do
+        true  | true  | true
+        true  | false | true
+        false | true  | true
+        false | false | false
       end
 
-      context 'when broadcast_issue_updates is disabled' do
-        before do
-          stub_feature_flags(broadcast_issue_updates: false)
-        end
+      with_them do
+        it 'broadcasts to the issues channel based on ActionCable and feature flag values' do
+          expect(Gitlab::ActionCable::Config).to receive(:in_app?).and_return(action_cable_in_app_enabled)
+          stub_feature_flags(broadcast_issue_updates: feature_flag_enabled)
 
-        it 'does not broadcast to the issues channel' do
-          expect(IssuesChannel).not_to receive(:broadcast_to)
+          if should_broadcast
+            expect(IssuesChannel).to receive(:broadcast_to).with(issue, event: 'updated')
+          else
+            expect(IssuesChannel).not_to receive(:broadcast_to)
+          end
 
           update_issue(update_params)
         end