diff --git a/app/assets/javascripts/nav/components/top_nav_menu_sections.vue b/app/assets/javascripts/nav/components/top_nav_menu_sections.vue
index b8555df53df..97e63c7324e 100644
--- a/app/assets/javascripts/nav/components/top_nav_menu_sections.vue
+++ b/app/assets/javascripts/nav/components/top_nav_menu_sections.vue
@@ -49,15 +49,26 @@ export default {
       :class="getMenuSectionClasses(sectionIndex)"
       data-testid="menu-section"
     >
-      <top-nav-menu-item
-        v-for="(menuItem, menuItemIndex) in menuItems"
-        :key="menuItem.id"
-        :menu-item="menuItem"
-        data-testid="menu-item"
-        class="gl-w-full"
-        :class="{ 'gl-mt-1': menuItemIndex > 0 }"
-        @click="onClick(menuItem)"
-      />
+      <template v-for="(menuItem, menuItemIndex) in menuItems">
+        <strong
+          v-if="menuItem.type == 'header'"
+          :key="menuItem.title"
+          class="gl-px-4 gl-py-2 gl-text-gray-900 gl-display-block"
+          :class="{ 'gl-pt-3!': menuItemIndex > 0 }"
+          data-testid="menu-header"
+        >
+          {{ menuItem.title }}
+        </strong>
+        <top-nav-menu-item
+          v-else
+          :key="menuItem.id"
+          :menu-item="menuItem"
+          data-testid="menu-item"
+          class="gl-w-full"
+          :class="{ 'gl-mt-1': menuItemIndex > 0 }"
+          @click="onClick(menuItem)"
+        />
+      </template>
     </div>
   </div>
 </template>
diff --git a/app/assets/javascripts/pages/projects/merge_requests/edit/index.js b/app/assets/javascripts/pages/projects/merge_requests/edit/index.js
index 6c481beefe1..5179d1b31ab 100644
--- a/app/assets/javascripts/pages/projects/merge_requests/edit/index.js
+++ b/app/assets/javascripts/pages/projects/merge_requests/edit/index.js
@@ -6,6 +6,7 @@ import { GitLabDropdown } from '~/deprecated_jquery_dropdown/gl_dropdown';
 
 import initMergeRequest from '~/pages/projects/merge_requests/init_merge_request';
 import initCheckFormState from './check_form_state';
+import initFormUpdate from './update_form';
 
 function initTargetBranchSelector() {
   const targetBranch = document.querySelector('.js-target-branch');
@@ -68,5 +69,6 @@ function initTargetBranchSelector() {
 }
 
 initMergeRequest();
+initFormUpdate();
 initCheckFormState();
 initTargetBranchSelector();
diff --git a/app/assets/javascripts/pages/projects/merge_requests/edit/update_form.js b/app/assets/javascripts/pages/projects/merge_requests/edit/update_form.js
new file mode 100644
index 00000000000..3bb64f741e7
--- /dev/null
+++ b/app/assets/javascripts/pages/projects/merge_requests/edit/update_form.js
@@ -0,0 +1,23 @@
+const findForm = () => document.querySelector('.merge-request-form');
+
+const removeHiddenCheckbox = (node) => {
+  const checkboxWrapper = node.closest('.form-check');
+  const hiddenCheckbox = checkboxWrapper.querySelector('input[type="hidden"]');
+  hiddenCheckbox.remove();
+};
+
+export default () => {
+  const updateCheckboxes = () => {
+    const checkboxes = document.querySelectorAll('.js-form-update');
+
+    if (!checkboxes.length) return;
+
+    checkboxes.forEach((checkbox) => {
+      if (checkbox.checked) {
+        removeHiddenCheckbox(checkbox);
+      }
+    });
+  };
+
+  findForm().addEventListener('submit', () => updateCheckboxes());
+};
diff --git a/app/assets/javascripts/pages/shared/wikis/components/wiki_form.vue b/app/assets/javascripts/pages/shared/wikis/components/wiki_form.vue
index 3f4ab7319a0..9acc1cb62a1 100644
--- a/app/assets/javascripts/pages/shared/wikis/components/wiki_form.vue
+++ b/app/assets/javascripts/pages/shared/wikis/components/wiki_form.vue
@@ -385,7 +385,13 @@ export default {
               @loadingSuccess="enableSwitchEditingControl"
               @loadingError="enableSwitchEditingControl"
             />
-            <input id="wiki_content" v-model.trim="content" type="hidden" name="wiki[content]" />
+            <input
+              id="wiki_content"
+              v-model.trim="content"
+              type="hidden"
+              name="wiki[content]"
+              data-qa-selector="wiki_hidden_content"
+            />
           </div>
 
           <div class="clearfix"></div>
diff --git a/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_multi_actions.vue b/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_multi_actions.vue
index 05a1ceface3..77f9b07f66c 100644
--- a/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_multi_actions.vue
+++ b/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_multi_actions.vue
@@ -10,6 +10,8 @@ import {
 import fuzzaldrinPlus from 'fuzzaldrin-plus';
 import axios from '~/lib/utils/axios_utils';
 import { __, s__ } from '~/locale';
+import Tracking from '~/tracking';
+import { TRACKING_CATEGORIES } from '../../constants';
 
 export const i18n = {
   downloadArtifacts: __('Download artifacts'),
@@ -29,6 +31,7 @@ export default {
     GlSearchBoxByType,
     GlLoadingIcon,
   },
+  mixins: [Tracking.mixin()],
   inject: {
     artifactsEndpoint: {
       default: '',
@@ -60,6 +63,10 @@ export default {
   },
   methods: {
     fetchArtifacts() {
+      // refactor tracking based on action once this dropdown supports
+      // actions other than artifacts
+      this.track('click_artifacts_dropdown', { label: TRACKING_CATEGORIES.index });
+
       this.isLoading = true;
       // Replace the placeholder with the ID of the pipeline we are viewing
       const endpoint = this.artifactsEndpoint.replace(
diff --git a/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_operations.vue b/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_operations.vue
index 7a08dacb824..5d5eb98f0db 100644
--- a/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_operations.vue
+++ b/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_operations.vue
@@ -1,7 +1,8 @@
 <script>
 import { GlButton, GlTooltipDirective, GlModalDirective } from '@gitlab/ui';
+import Tracking from '~/tracking';
 import eventHub from '../../event_hub';
-import { BUTTON_TOOLTIP_RETRY, BUTTON_TOOLTIP_CANCEL } from '../../constants';
+import { BUTTON_TOOLTIP_RETRY, BUTTON_TOOLTIP_CANCEL, TRACKING_CATEGORIES } from '../../constants';
 import PipelineMultiActions from './pipeline_multi_actions.vue';
 import PipelinesManualActions from './pipelines_manual_actions.vue';
 
@@ -17,6 +18,7 @@ export default {
     PipelineMultiActions,
     PipelinesManualActions,
   },
+  mixins: [Tracking.mixin()],
   props: {
     pipeline: {
       type: Object,
@@ -52,6 +54,7 @@ export default {
   },
   methods: {
     handleCancelClick() {
+      this.trackClick('click_cancel_button');
       eventHub.$emit('openConfirmationModal', {
         pipeline: this.pipeline,
         endpoint: this.pipeline.cancel_path,
@@ -59,8 +62,12 @@ export default {
     },
     handleRetryClick() {
       this.isRetrying = true;
+      this.trackClick('click_retry_button');
       eventHub.$emit('retryPipeline', this.pipeline.retry_path);
     },
+    trackClick(action) {
+      this.track(action, { label: TRACKING_CATEGORIES.index });
+    },
   },
 };
 </script>
diff --git a/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_url.vue b/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_url.vue
index 09d588aaafd..bdfa754cecd 100644
--- a/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_url.vue
+++ b/app/assets/javascripts/pipelines/components/pipelines_list/pipeline_url.vue
@@ -1,9 +1,10 @@
 <script>
 import { GlIcon, GlLink, GlTooltipDirective } from '@gitlab/ui';
 import { __ } from '~/locale';
+import Tracking from '~/tracking';
 import TooltipOnTruncate from '~/vue_shared/components/tooltip_on_truncate/tooltip_on_truncate.vue';
 import UserAvatarLink from '~/vue_shared/components/user_avatar/user_avatar_link.vue';
-import { ICONS } from '../../constants';
+import { ICONS, TRACKING_CATEGORIES } from '../../constants';
 import PipelineLabels from './pipeline_labels.vue';
 
 export default {
@@ -17,6 +18,7 @@ export default {
   directives: {
     GlTooltip: GlTooltipDirective,
   },
+  mixins: [Tracking.mixin()],
   props: {
     pipeline: {
       type: Object,
@@ -114,6 +116,11 @@ export default {
       return this.pipeline?.commit?.title;
     },
   },
+  methods: {
+    trackClick(action) {
+      this.track(action, { label: TRACKING_CATEGORIES.index });
+    },
+  },
 };
 </script>
 <template>
@@ -125,6 +132,7 @@ export default {
             :href="commitUrl"
             class="commit-row-message gl-text-gray-900"
             data-testid="commit-title"
+            @click="trackClick('click_commit_title')"
             >{{ commitTitle }}</gl-link
           >
         </tooltip-on-truncate>
@@ -137,6 +145,7 @@ export default {
         class="gl-text-decoration-underline gl-text-blue-600! gl-mr-3"
         data-testid="pipeline-url-link"
         data-qa-selector="pipeline_url_link"
+        @click="trackClick('click_pipeline_id')"
         >#{{ pipeline[pipelineKey] }}</gl-link
       >
       <!--Commit row-->
@@ -154,11 +163,17 @@ export default {
           :href="mergeRequestRef.path"
           class="ref-name gl-mr-3"
           data-testid="merge-request-ref"
+          @click="trackClick('click_mr_ref')"
           >{{ mergeRequestRef.iid }}</gl-link
         >
-        <gl-link v-else :href="refUrl" class="ref-name gl-mr-3" data-testid="commit-ref-name">{{
-          commitRef.name
-        }}</gl-link>
+        <gl-link
+          v-else
+          :href="refUrl"
+          class="ref-name gl-mr-3"
+          data-testid="commit-ref-name"
+          @click="trackClick('click_commit_name')"
+          >{{ commitRef.name }}</gl-link
+        >
       </tooltip-on-truncate>
       <gl-icon
         v-gl-tooltip
@@ -167,9 +182,13 @@ export default {
         :title="__('Commit')"
         data-testid="commit-icon"
       />
-      <gl-link :href="commitUrl" class="commit-sha mr-0" data-testid="commit-short-sha">{{
-        commitShortSha
-      }}</gl-link>
+      <gl-link
+        :href="commitUrl"
+        class="commit-sha mr-0"
+        data-testid="commit-short-sha"
+        @click="trackClick('click_commit_sha')"
+        >{{ commitShortSha }}</gl-link
+      >
       <user-avatar-link
         v-if="commitAuthor"
         :link-href="commitAuthor.path"
diff --git a/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_filtered_search.vue b/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_filtered_search.vue
index 4d28545a035..1b9c6a59935 100644
--- a/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_filtered_search.vue
+++ b/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_filtered_search.vue
@@ -2,7 +2,9 @@
 import { GlFilteredSearch } from '@gitlab/ui';
 import { map } from 'lodash';
 import { s__ } from '~/locale';
+import Tracking from '~/tracking';
 import { OPERATOR_IS_ONLY } from '~/vue_shared/components/filtered_search_bar/constants';
+import { TRACKING_CATEGORIES } from '../../constants';
 import PipelineBranchNameToken from './tokens/pipeline_branch_name_token.vue';
 import PipelineSourceToken from './tokens/pipeline_source_token.vue';
 import PipelineStatusToken from './tokens/pipeline_status_token.vue';
@@ -19,6 +21,7 @@ export default {
   components: {
     GlFilteredSearch,
   },
+  mixins: [Tracking.mixin()],
   props: {
     projectId: {
       type: String,
@@ -110,6 +113,7 @@ export default {
   },
   methods: {
     onSubmit(filters) {
+      this.track('click_filtered_search', { label: TRACKING_CATEGORIES.index });
       this.$emit('filterPipelines', filters);
     },
   },
diff --git a/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_manual_actions.vue b/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_manual_actions.vue
index 47fffa8a6b2..e1c8fc902fa 100644
--- a/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_manual_actions.vue
+++ b/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_manual_actions.vue
@@ -4,8 +4,10 @@ import createFlash from '~/flash';
 import axios from '~/lib/utils/axios_utils';
 import { confirmAction } from '~/lib/utils/confirm_via_gl_modal/confirm_via_gl_modal';
 import { s__, __, sprintf } from '~/locale';
+import Tracking from '~/tracking';
 import GlCountdown from '~/vue_shared/components/gl_countdown.vue';
 import eventHub from '../../event_hub';
+import { TRACKING_CATEGORIES } from '../../constants';
 
 export default {
   directives: {
@@ -17,6 +19,7 @@ export default {
     GlDropdownItem,
     GlIcon,
   },
+  mixins: [Tracking.mixin()],
   props: {
     actions: {
       type: Array,
@@ -66,7 +69,6 @@ export default {
           createFlash({ message: __('An error occurred while making the request.') });
         });
     },
-
     isActionDisabled(action) {
       if (action.playable === undefined) {
         return false;
@@ -74,6 +76,9 @@ export default {
 
       return !action.playable;
     },
+    trackClick() {
+      this.track('click_manual_actions', { label: TRACKING_CATEGORIES.index });
+    },
   },
 };
 </script>
@@ -86,6 +91,7 @@ export default {
     right
     lazy
     icon="play"
+    @shown="trackClick"
   >
     <gl-dropdown-item
       v-for="action in actions"
diff --git a/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_status_badge.vue b/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_status_badge.vue
index e765a8cd86c..69a3851043d 100644
--- a/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_status_badge.vue
+++ b/app/assets/javascripts/pipelines/components/pipelines_list/pipelines_status_badge.vue
@@ -1,6 +1,7 @@
 <script>
-import { CHILD_VIEW } from '~/pipelines/constants';
+import { CHILD_VIEW, TRACKING_CATEGORIES } from '~/pipelines/constants';
 import CiBadge from '~/vue_shared/components/ci_badge_link.vue';
+import Tracking from '~/tracking';
 import PipelinesTimeago from './time_ago.vue';
 
 export default {
@@ -8,6 +9,7 @@ export default {
     CiBadge,
     PipelinesTimeago,
   },
+  mixins: [Tracking.mixin()],
   props: {
     pipeline: {
       type: Object,
@@ -26,6 +28,11 @@ export default {
       return this.viewType === CHILD_VIEW;
     },
   },
+  methods: {
+    trackClick() {
+      this.track('click_ci_status_badge', { label: TRACKING_CATEGORIES.index });
+    },
+  },
 };
 </script>
 
@@ -37,6 +44,7 @@ export default {
       :show-text="!isChildView"
       :icon-classes="'gl-vertical-align-middle!'"
       data-qa-selector="pipeline_commit_status"
+      @ciStatusBadgeClick="trackClick"
     />
     <pipelines-timeago class="gl-mt-3" :pipeline="pipeline" />
   </div>
diff --git a/app/assets/javascripts/pipelines/constants.js b/app/assets/javascripts/pipelines/constants.js
index 0619ecaabbf..1c9d14dcba6 100644
--- a/app/assets/javascripts/pipelines/constants.js
+++ b/app/assets/javascripts/pipelines/constants.js
@@ -109,3 +109,7 @@ export const DEFAULT_FIELDS = [
     columnClass: 'gl-w-20p',
   },
 ];
+
+export const TRACKING_CATEGORIES = {
+  index: 'pipelines_table_component',
+};
diff --git a/app/assets/javascripts/vue_shared/components/ci_badge_link.vue b/app/assets/javascripts/vue_shared/components/ci_badge_link.vue
index a25ba3e8c91..84bd6bca601 100644
--- a/app/assets/javascripts/vue_shared/components/ci_badge_link.vue
+++ b/app/assets/javascripts/vue_shared/components/ci_badge_link.vue
@@ -1,5 +1,6 @@
 <script>
 import { GlTooltipDirective } from '@gitlab/ui';
+import { visitUrl } from '~/lib/utils/url_utility';
 import CiIcon from './ci_icon.vue';
 /**
  * Renders CI Badge link with CI icon and status text based on
@@ -60,15 +61,24 @@ export default {
       return className ? `ci-status ci-${className}` : 'ci-status';
     },
   },
+  methods: {
+    navigateToPipeline() {
+      visitUrl(this.detailsPath);
+
+      // event used for tracking
+      this.$emit('ciStatusBadgeClick');
+    },
+  },
 };
 </script>
 <template>
   <a
     v-gl-tooltip
-    :href="detailsPath"
     :class="cssClass"
+    class="gl-cursor-pointer"
     :title="title"
     data-qa-selector="status_badge_link"
+    @click="navigateToPipeline"
   >
     <ci-icon :status="status" :css-classes="iconClasses" />
 
diff --git a/app/assets/stylesheets/startup/startup-signin.scss b/app/assets/stylesheets/startup/startup-signin.scss
index b36b6827643..b3afb746ba7 100644
--- a/app/assets/stylesheets/startup/startup-signin.scss
+++ b/app/assets/stylesheets/startup/startup-signin.scss
@@ -11,6 +11,9 @@ html {
   font-family: sans-serif;
   line-height: 1.15;
 }
+header {
+  display: block;
+}
 body {
   margin: 0;
   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
@@ -28,7 +31,8 @@ hr {
   height: 0;
   overflow: visible;
 }
-h1 {
+h1,
+h3 {
   margin-top: 0;
   margin-bottom: 0.25rem;
 }
@@ -49,26 +53,49 @@ img {
   vertical-align: middle;
   border-style: none;
 }
+svg {
+  overflow: hidden;
+  vertical-align: middle;
+}
 label {
   display: inline-block;
   margin-bottom: 0.5rem;
 }
-input {
+button {
+  border-radius: 0;
+}
+input,
+button {
   margin: 0;
   font-family: inherit;
   font-size: inherit;
   line-height: inherit;
 }
+button,
 input {
   overflow: visible;
 }
+button {
+  text-transform: none;
+}
+[role="button"] {
+  cursor: pointer;
+}
+button:not(:disabled),
+[type="button"]:not(:disabled),
 [type="submit"]:not(:disabled) {
   cursor: pointer;
 }
+button::-moz-focus-inner,
+[type="button"]::-moz-focus-inner,
 [type="submit"]::-moz-focus-inner {
   padding: 0;
   border-style: none;
 }
+input[type="checkbox"] {
+  box-sizing: border-box;
+  padding: 0;
+}
 fieldset {
   min-width: 0;
   padding: 0;
@@ -78,7 +105,8 @@ fieldset {
 [hidden] {
   display: none !important;
 }
-h1 {
+h1,
+h3 {
   margin-bottom: 0.25rem;
   font-weight: 600;
   line-height: 1.2;
@@ -87,6 +115,9 @@ h1 {
 h1 {
   font-size: 2.1875rem;
 }
+h3 {
+  font-size: 1.53125rem;
+}
 hr {
   margin-top: 0.5rem;
   margin-bottom: 0.5rem;
@@ -120,23 +151,42 @@ hr {
     max-width: 1140px;
   }
 }
-.col-sm-12,
-.col {
+.row {
+  display: flex;
+  flex-wrap: wrap;
+  margin-right: -15px;
+  margin-left: -15px;
+}
+.col-md-6,
+.col-sm-12 {
   position: relative;
   width: 100%;
   padding-right: 15px;
   padding-left: 15px;
 }
-.col {
-  flex-basis: 0;
-  flex-grow: 1;
-  max-width: 100%;
+.order-1 {
+  order: 1;
+}
+.order-12 {
+  order: 12;
 }
 @media (min-width: 576px) {
   .col-sm-12 {
     flex: 0 0 100%;
     max-width: 100%;
   }
+  .order-sm-1 {
+    order: 1;
+  }
+  .order-sm-12 {
+    order: 12;
+  }
+}
+@media (min-width: 768px) {
+  .col-md-6 {
+    flex: 0 0 50%;
+    max-width: 50%;
+  }
 }
 .form-control {
   display: block;
@@ -169,16 +219,6 @@ hr {
 .form-group {
   margin-bottom: 1rem;
 }
-.form-row {
-  display: flex;
-  flex-wrap: wrap;
-  margin-right: -5px;
-  margin-left: -5px;
-}
-.form-row > .col {
-  padding-right: 5px;
-  padding-left: 5px;
-}
 .btn {
   display: inline-block;
   font-weight: 400;
@@ -204,6 +244,137 @@ hr {
 fieldset:disabled a.btn {
   pointer-events: none;
 }
+.btn-block {
+  display: block;
+  width: 100%;
+}
+.btn-block + .btn-block {
+  margin-top: 0.5rem;
+}
+input.btn-block[type="submit"],
+input.btn-block[type="button"] {
+  width: 100%;
+}
+.custom-control {
+  position: relative;
+  z-index: 1;
+  display: block;
+  min-height: 1.5rem;
+  padding-left: 1.5rem;
+  color-adjust: exact;
+}
+.custom-control-input {
+  position: absolute;
+  left: 0;
+  z-index: -1;
+  width: 1rem;
+  height: 1.25rem;
+  opacity: 0;
+}
+.custom-control-input:checked ~ .custom-control-label::before {
+  color: #fff;
+  border-color: #007bff;
+  background-color: #007bff;
+}
+.custom-control-input:not(:disabled):active ~ .custom-control-label::before {
+  color: #fff;
+  background-color: #b3d7ff;
+  border-color: #b3d7ff;
+}
+.custom-control-input:disabled ~ .custom-control-label {
+  color: #5e5e5e;
+}
+.custom-control-input:disabled ~ .custom-control-label::before {
+  background-color: #fafafa;
+}
+.custom-control-label {
+  position: relative;
+  margin-bottom: 0;
+  vertical-align: top;
+}
+.custom-control-label::before {
+  position: absolute;
+  top: 0.25rem;
+  left: -1.5rem;
+  display: block;
+  width: 1rem;
+  height: 1rem;
+  pointer-events: none;
+  content: "";
+  background-color: #fff;
+  border: #666 solid 1px;
+}
+.custom-control-label::after {
+  position: absolute;
+  top: 0.25rem;
+  left: -1.5rem;
+  display: block;
+  width: 1rem;
+  height: 1rem;
+  content: "";
+  background: no-repeat 50% / 50% 50%;
+}
+.custom-checkbox .custom-control-label::before {
+  border-radius: 0.25rem;
+}
+.custom-checkbox .custom-control-input:checked ~ .custom-control-label::after {
+  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8'%3e%3cpath fill='%23fff' d='M6.564.75l-3.59 3.612-1.538-1.55L0 4.26l2.974 2.99L8 2.193z'/%3e%3c/svg%3e");
+}
+.custom-checkbox
+  .custom-control-input:indeterminate
+  ~ .custom-control-label::before {
+  border-color: #007bff;
+  background-color: #007bff;
+}
+.custom-checkbox
+  .custom-control-input:indeterminate
+  ~ .custom-control-label::after {
+  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4' viewBox='0 0 4 4'%3e%3cpath stroke='%23fff' d='M0 2h4'/%3e%3c/svg%3e");
+}
+.custom-checkbox
+  .custom-control-input:disabled:checked
+  ~ .custom-control-label::before {
+  background-color: rgba(0, 123, 255, 0.5);
+}
+.custom-checkbox
+  .custom-control-input:disabled:indeterminate
+  ~ .custom-control-label::before {
+  background-color: rgba(0, 123, 255, 0.5);
+}
+@media (prefers-reduced-motion: reduce) {
+}
+.tab-content > .tab-pane {
+  display: none;
+}
+.tab-content > .active {
+  display: block;
+}
+.navbar {
+  position: relative;
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0.25rem 0.5rem;
+}
+.navbar .container {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: space-between;
+}
+.clearfix::after {
+  display: block;
+  clear: both;
+  content: "";
+}
+.fixed-top {
+  position: fixed;
+  top: 0;
+  right: 0;
+  left: 0;
+  z-index: 1030;
+}
 .mt-3 {
   margin-top: 1rem !important;
 }
@@ -213,8 +384,8 @@ fieldset:disabled a.btn {
 .text-nowrap {
   white-space: nowrap !important;
 }
-.text-center {
-  text-align: center !important;
+.font-weight-normal {
+  font-weight: 400 !important;
 }
 .gl-form-input,
 .gl-form-input.form-control {
@@ -251,13 +422,103 @@ fieldset:disabled a.btn {
 .gl-form-input.form-control::placeholder {
   color: #868686;
 }
+.gl-form-checkbox {
+  font-size: 0.875rem;
+  line-height: 1rem;
+  color: #303030;
+}
+.gl-form-checkbox .custom-control-input:disabled,
+.gl-form-checkbox .custom-control-input:disabled ~ .custom-control-label {
+  cursor: not-allowed;
+  color: #868686;
+}
+.gl-form-checkbox.custom-control .custom-control-input ~ .custom-control-label {
+  cursor: pointer;
+}
+.gl-form-checkbox.custom-control
+  .custom-control-input
+  ~ .custom-control-label::before,
+.gl-form-checkbox.custom-control
+  .custom-control-input
+  ~ .custom-control-label::after {
+  top: 0;
+}
+.gl-form-checkbox.custom-control
+  .custom-control-input
+  ~ .custom-control-label::before {
+  background-color: #fff;
+  border-color: #868686;
+}
+.gl-form-checkbox.custom-control
+  .custom-control-input:checked
+  ~ .custom-control-label::before {
+  background-color: #1f75cb;
+  border-color: #1f75cb;
+}
+.gl-form-checkbox.custom-control
+  .custom-control-input[type="checkbox"]:checked
+  ~ .custom-control-label::after,
+.gl-form-checkbox.custom-control
+  .custom-control-input[type="checkbox"]:indeterminate
+  ~ .custom-control-label::after {
+  background: none;
+  background-color: #fff;
+  mask-repeat: no-repeat;
+  mask-position: center center;
+}
+.gl-form-checkbox.custom-control
+  .custom-control-input[type="checkbox"]:checked
+  ~ .custom-control-label::after {
+  mask-image: url('data:image/svg+xml,%3Csvg width="8" height="7" viewBox="0 0 8 7" fill="none" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M1 3.05299L2.99123 5L7 1" stroke="white" stroke-width="2"/%3E%3C/svg%3E%0A');
+}
+.gl-form-checkbox.custom-control
+  .custom-control-input[type="checkbox"]:indeterminate
+  ~ .custom-control-label::after {
+  mask-image: url('data:image/svg+xml,%3Csvg width="8" height="2" viewBox="0 0 8 2" fill="none" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M0 1L8 1" stroke="white" stroke-width="2"/%3E%3C/svg%3E%0A');
+}
+.gl-form-checkbox.custom-control.custom-checkbox
+  .custom-control-input:indeterminate
+  ~ .custom-control-label::before {
+  background-color: #1f75cb;
+  border-color: #1f75cb;
+}
+.gl-form-checkbox.custom-control
+  .custom-control-input:disabled
+  ~ .custom-control-label {
+  cursor: not-allowed;
+}
+.gl-form-checkbox.custom-control
+  .custom-control-input:disabled
+  ~ .custom-control-label::before {
+  background-color: #f0f0f0;
+  border-color: #dbdbdb;
+  pointer-events: auto;
+}
+.gl-form-checkbox.custom-control
+  .custom-control-input:checked:disabled
+  ~ .custom-control-label::before,
+.gl-form-checkbox.custom-control
+  .custom-control-input:indeterminate:disabled
+  ~ .custom-control-label::before {
+  background-color: #dbdbdb;
+  border-color: #dbdbdb;
+}
+.gl-form-checkbox.custom-control
+  .custom-control-input:checked:disabled
+  ~ .custom-control-label::after,
+.gl-form-checkbox.custom-control
+  .custom-control-input:indeterminate:disabled
+  ~ .custom-control-label::after {
+  background-color: #5e5e5e;
+}
 .gl-button {
   display: inline-flex;
 }
 .gl-button:not(.btn-link):active {
   text-decoration: none;
 }
-.gl-button.gl-button {
+.gl-button.gl-button,
+.gl-button.gl-button.btn-block {
   border-width: 0;
   padding-top: 0.5rem;
   padding-bottom: 0.5rem;
@@ -273,7 +534,8 @@ fieldset:disabled a.btn {
   font-size: 0.875rem;
   border-radius: 0.25rem;
 }
-.gl-button.gl-button .gl-button-text {
+.gl-button.gl-button .gl-button-text,
+.gl-button.gl-button.btn-block .gl-button-text {
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
@@ -282,29 +544,39 @@ fieldset:disabled a.btn {
   margin-top: -1px;
   margin-bottom: -1px;
 }
-.gl-button.gl-button .gl-button-icon {
+.gl-button.gl-button .gl-button-icon,
+.gl-button.gl-button.btn-block .gl-button-icon {
   height: 1rem;
   width: 1rem;
   flex-shrink: 0;
   margin-right: 0.25rem;
   top: auto;
 }
-.gl-button.gl-button.btn-default {
+.gl-button.gl-button.btn-default,
+.gl-button.gl-button.btn-block.btn-default {
   background-color: #fff;
 }
-.gl-button.gl-button.btn-default:active {
+.gl-button.gl-button.btn-default:active,
+.gl-button.gl-button.btn-default.active,
+.gl-button.gl-button.btn-block.btn-default:active,
+.gl-button.gl-button.btn-block.btn-default.active {
   box-shadow: inset 0 0 0 1px #5e5e5e, 0 0 0 1px #fff, 0 0 0 3px #428fdc;
   outline: none;
   background-color: #dbdbdb;
 }
-.gl-button.gl-button.btn-confirm {
+.gl-button.gl-button.btn-confirm,
+.gl-button.gl-button.btn-block.btn-confirm {
   color: #fff;
 }
-.gl-button.gl-button.btn-confirm {
+.gl-button.gl-button.btn-confirm,
+.gl-button.gl-button.btn-block.btn-confirm {
   background-color: #1f75cb;
   box-shadow: inset 0 0 0 1px #1068bf;
 }
-.gl-button.gl-button.btn-confirm:active {
+.gl-button.gl-button.btn-confirm:active,
+.gl-button.gl-button.btn-confirm.active,
+.gl-button.gl-button.btn-block.btn-confirm:active,
+.gl-button.gl-button.btn-block.btn-confirm.active {
   box-shadow: inset 0 0 0 1px #033464, 0 0 0 1px #fff, 0 0 0 3px #428fdc;
   outline: none;
   background-color: #0b5cad;
@@ -312,10 +584,14 @@ fieldset:disabled a.btn {
 body {
   font-size: 0.875rem;
 }
-[type="submit"] {
+button,
+html [type="button"],
+[type="submit"],
+[role="button"] {
   cursor: pointer;
 }
-h1 {
+h1,
+h3 {
   margin-top: 20px;
   margin-bottom: 10px;
 }
@@ -325,6 +601,9 @@ a {
 hr {
   overflow: hidden;
 }
+svg {
+  vertical-align: baseline;
+}
 .form-control {
   font-size: 0.875rem;
 }
@@ -332,9 +611,6 @@ hr {
   display: none !important;
   visibility: hidden !important;
 }
-.hide {
-  display: none;
-}
 html {
   overflow-y: scroll;
 }
@@ -372,13 +648,34 @@ body.navless {
   background-color: #f0f0f0;
   box-shadow: none;
 }
-.btn:active {
+.btn:active,
+.btn.active {
   background-color: #eaeaea;
   border-color: #e3e3e3;
   color: #303030;
 }
-.light {
-  color: #303030;
+.btn svg {
+  height: 15px;
+  width: 15px;
+}
+.btn svg:not(:last-child) {
+  margin-right: 5px;
+}
+.btn-block {
+  width: 100%;
+  margin: 0;
+  margin-bottom: 1rem;
+}
+.btn-block.btn {
+  padding: 6px 0;
+}
+.tab-content {
+  overflow: visible;
+}
+@media (max-width: 767.98px) {
+  .tab-content {
+    isolation: isolate;
+  }
 }
 hr {
   margin: 1.5rem 0;
@@ -416,6 +713,9 @@ input {
 label {
   font-weight: 600;
 }
+label.custom-control-label {
+  font-weight: 400;
+}
 label.label-bold {
   font-weight: 600;
 }
@@ -429,8 +729,25 @@ label.label-bold {
 .gl-show-field-errors .form-control:not(textarea) {
   height: 34px;
 }
-.gl-show-field-errors .gl-field-hint {
-  color: #303030;
+.navbar-empty {
+  justify-content: center;
+  height: var(--header-height, 48px);
+  background: #fff;
+  border-bottom: 1px solid #dbdbdb;
+}
+.navbar-empty .tanuki-logo,
+.navbar-empty .brand-header-logo {
+  max-height: 100%;
+}
+.tanuki-logo .tanuki {
+  fill: #e24329;
+}
+.tanuki-logo .left-cheek,
+.tanuki-logo .right-cheek {
+  fill: #fc6d26;
+}
+.tanuki-logo .chin {
+  fill: #fca326;
 }
 input::-moz-placeholder {
   color: #868686;
@@ -442,6 +759,9 @@ input::-ms-input-placeholder {
 input:-ms-input-placeholder {
   color: #868686;
 }
+svg {
+  fill: currentColor;
+}
 .login-page .container {
   max-width: 960px;
 }
@@ -649,14 +969,17 @@ input:-ms-input-placeholder {
   }
 }
 
-.gl-text-green-600 {
-  color: #217645;
+.gl-display-flex {
+  display: flex;
 }
-.gl-text-red-500 {
-  color: #dd2b0e;
+.gl-display-inline-block {
+  display: inline-block;
 }
-.gl-display-block {
-  display: block;
+.gl-flex-wrap {
+  flex-wrap: wrap;
+}
+.gl-float-right {
+  float: right;
 }
 .gl-w-10 {
   width: 3.5rem;
@@ -675,14 +998,18 @@ input:-ms-input-placeholder {
     width: 100%;
   }
 }
-.gl-p-4 {
-  padding: 0.75rem;
+.gl-p-5 {
+  padding: 1rem;
+}
+.gl-px-5 {
+  padding-left: 1rem;
+  padding-right: 1rem;
 }
 .gl-pt-5 {
   padding-top: 1rem;
 }
-.gl-mt-2 {
-  margin-top: 0.25rem;
+.gl-mt-3 {
+  margin-top: 0.5rem;
 }
 .gl-mt-5 {
   margin-top: 1rem;
@@ -702,15 +1029,17 @@ input:-ms-input-placeholder {
 .gl-mb-3 {
   margin-bottom: 0.5rem;
 }
-.gl-mb-5 {
-  margin-bottom: 1rem;
-}
 .gl-ml-auto {
   margin-left: auto;
 }
 .gl-ml-2 {
   margin-left: 0.25rem;
 }
+@media (min-width: 576px) {
+  .gl-sm-mt-0 {
+    margin-top: 0;
+  }
+}
 .gl-text-center {
   text-align: center;
 }
@@ -720,6 +1049,9 @@ input:-ms-input-placeholder {
 .gl-font-weight-normal {
   font-weight: 400;
 }
+.gl-font-weight-bold {
+  font-weight: 600;
+}
 
 @import "startup/cloaking";
 @include cloak-startup-scss(none);
diff --git a/app/controllers/projects/environments_controller.rb b/app/controllers/projects/environments_controller.rb
index 7ef9fd9daed..311c83ab9b4 100644
--- a/app/controllers/projects/environments_controller.rb
+++ b/app/controllers/projects/environments_controller.rb
@@ -6,6 +6,7 @@ class Projects::EnvironmentsController < Projects::ApplicationController
   # See https://gitlab.com/gitlab-org/gitlab/-/issues/226002 for more details.
 
   include MetricsDashboard
+  include ProductAnalyticsTracking
 
   layout 'project'
 
@@ -26,6 +27,18 @@ class Projects::EnvironmentsController < Projects::ApplicationController
   before_action :expire_etag_cache, only: [:index], unless: -> { request.format.json? }
   after_action :expire_etag_cache, only: [:cancel_auto_stop]
 
+  track_event :index,
+              :folder,
+              :show,
+              :new,
+              :edit,
+              :create,
+              :update,
+              :stop,
+              :cancel_auto_stop,
+              :terminal,
+              name: 'users_visiting_environments_pages'
+
   feature_category :continuous_delivery
   urgency :low
 
diff --git a/app/helpers/nav/top_nav_helper.rb b/app/helpers/nav/top_nav_helper.rb
index efec6f2d0d8..c4135dc086e 100644
--- a/app/helpers/nav/top_nav_helper.rb
+++ b/app/helpers/nav/top_nav_helper.rb
@@ -48,6 +48,13 @@ module Nav
 
     private
 
+    def top_nav_localized_headers
+      {
+        explore: s_('TopNav|Explore'),
+        switch_to: s_('TopNav|Switch to')
+      }.freeze
+    end
+
     def build_base_view_model(builder:, project:, group:)
       if current_user
         build_view_model(builder: builder, project: project, group: group)
@@ -60,6 +67,7 @@ module Nav
       # These come from `app/views/layouts/nav/_explore.html.ham`
       if explore_nav_link?(:projects)
         builder.add_primary_menu_item_with_shortcut(
+          header: top_nav_localized_headers[:explore],
           href: explore_root_path,
           active: nav == 'project' || active_nav_link?(path: %w[dashboard#show root#show projects#trending projects#starred projects#index]),
           **projects_menu_item_attrs
@@ -68,6 +76,7 @@ module Nav
 
       if explore_nav_link?(:groups)
         builder.add_primary_menu_item_with_shortcut(
+          header: top_nav_localized_headers[:explore],
           href: explore_groups_path,
           active: nav == 'group' || active_nav_link?(controller: [:groups, 'groups/milestones', 'groups/group_members']),
           **groups_menu_item_attrs
@@ -76,6 +85,7 @@ module Nav
 
       if explore_nav_link?(:snippets)
         builder.add_primary_menu_item_with_shortcut(
+          header: top_nav_localized_headers[:explore],
           active: active_nav_link?(controller: :snippets),
           href: explore_snippets_path,
           **snippets_menu_item_attrs
@@ -89,6 +99,7 @@ module Nav
         current_item = project ? current_project(project: project) : {}
 
         builder.add_primary_menu_item_with_shortcut(
+          header: top_nav_localized_headers[:switch_to],
           active: nav == 'project' || active_nav_link?(path: %w[root#index projects#trending projects#starred dashboard/projects#index]),
           css_class: 'qa-projects-dropdown',
           data: { track_label: "projects_dropdown", track_action: "click_dropdown" },
@@ -103,6 +114,7 @@ module Nav
         current_item = group ? current_group(group: group) : {}
 
         builder.add_primary_menu_item_with_shortcut(
+          header: top_nav_localized_headers[:switch_to],
           active: nav == 'group' || active_nav_link?(path: %w[dashboard/groups explore/groups]),
           css_class: 'qa-groups-dropdown',
           data: { track_label: "groups_dropdown", track_action: "click_dropdown" },
@@ -116,6 +128,7 @@ module Nav
       if dashboard_nav_link?(:milestones)
         builder.add_primary_menu_item_with_shortcut(
           id: 'milestones',
+          header: top_nav_localized_headers[:explore],
           title: _('Milestones'),
           href: dashboard_milestones_path,
           active: active_nav_link?(controller: 'dashboard/milestones'),
@@ -127,6 +140,7 @@ module Nav
 
       if dashboard_nav_link?(:snippets)
         builder.add_primary_menu_item_with_shortcut(
+          header: top_nav_localized_headers[:explore],
           active: active_nav_link?(controller: 'dashboard/snippets'),
           data: { qa_selector: 'snippets_link', **menu_data_tracking_attrs('snippets') },
           href: dashboard_snippets_path,
@@ -137,6 +151,7 @@ module Nav
       if dashboard_nav_link?(:activity)
         builder.add_primary_menu_item_with_shortcut(
           id: 'activity',
+          header: top_nav_localized_headers[:explore],
           title: _('Activity'),
           href: activity_dashboard_path,
           active: active_nav_link?(path: 'dashboard#activity'),
diff --git a/app/models/application_setting.rb b/app/models/application_setting.rb
index 9a2a60fd7ad..2a04cc35ece 100644
--- a/app/models/application_setting.rb
+++ b/app/models/application_setting.rb
@@ -10,11 +10,7 @@ class ApplicationSetting < ApplicationRecord
 
   ignore_columns %i[elasticsearch_shards elasticsearch_replicas], remove_with: '14.4', remove_after: '2021-09-22'
   ignore_columns %i[static_objects_external_storage_auth_token], remove_with: '14.9', remove_after: '2022-03-22'
-  ignore_column %i[max_package_files_for_package_destruction], remove_with: '14.9', remove_after: '2022-03-22'
   ignore_column :user_email_lookup_limit, remove_with: '15.0', remove_after: '2022-04-18'
-  ignore_column :pseudonymizer_enabled, remove_with: '15.1', remove_after: '2022-06-22'
-  ignore_column :enforce_ssh_key_expiration, remove_with: '15.2', remove_after: '2022-07-22'
-  ignore_column :enforce_pat_expiration, remove_with: '15.2', remove_after: '2022-07-22'
 
   INSTANCE_REVIEW_MIN_USERS = 50
   GRAFANA_URL_ERROR_MESSAGE = 'Please check your Grafana URL setting in ' \
diff --git a/app/models/ci/pipeline.rb b/app/models/ci/pipeline.rb
index 4c0fbcfe330..ef01ef4697f 100644
--- a/app/models/ci/pipeline.rb
+++ b/app/models/ci/pipeline.rb
@@ -1073,7 +1073,7 @@ module Ci
       latest_test_report_builds.failed.limit(limit)
     end
 
-    def has_reports?(reports_scope)
+    def complete_and_has_reports?(reports_scope)
       if Feature.enabled?(:mr_show_reports_immediately, project, type: :development)
         latest_report_builds(reports_scope).exists?
       else
@@ -1090,7 +1090,7 @@ module Ci
     end
 
     def can_generate_codequality_reports?
-      has_reports?(Ci::JobArtifact.of_report_type(:codequality))
+      complete_and_has_reports?(Ci::JobArtifact.of_report_type(:codequality))
     end
 
     def test_report_summary
@@ -1313,7 +1313,7 @@ module Ci
 
     def has_test_reports?
       strong_memoize(:has_test_reports) do
-        has_reports?(::Ci::JobArtifact.of_report_type(:test))
+        complete_and_has_reports?(::Ci::JobArtifact.of_report_type(:test))
       end
     end
 
diff --git a/app/models/ci/runner.rb b/app/models/ci/runner.rb
index 3cbc4c50444..60a9eade5a5 100644
--- a/app/models/ci/runner.rb
+++ b/app/models/ci/runner.rb
@@ -8,15 +8,12 @@ module Ci
     include ChronicDurationAttribute
     include FromUnion
     include TokenAuthenticatable
-    include IgnorableColumns
     include FeatureGate
     include Gitlab::Utils::StrongMemoize
     include TaggableQueries
     include Presentable
     include EachBatch
 
-    ignore_column :semver, remove_with: '15.4', remove_after: '2022-08-22'
-
     add_authentication_token_field :token, encrypted: :optional, expires_at: :compute_token_expiration, expiration_enforced?: :token_expiration_enforced?
 
     enum access_level: {
diff --git a/app/models/clusters/applications/ingress.rb b/app/models/clusters/applications/ingress.rb
index 3a8c314efe4..27550616002 100644
--- a/app/models/clusters/applications/ingress.rb
+++ b/app/models/clusters/applications/ingress.rb
@@ -16,14 +16,10 @@ module Clusters
       include ::Clusters::Concerns::ApplicationData
       include AfterCommitQueue
       include UsageStatistics
-      include IgnorableColumns
 
       default_value_for :ingress_type, :nginx
       default_value_for :version, VERSION
 
-      ignore_column :modsecurity_enabled, remove_with: '14.2', remove_after: '2021-07-22'
-      ignore_column :modsecurity_mode, remove_with: '14.2', remove_after: '2021-07-22'
-
       enum ingress_type: {
         nginx: 1
       }
diff --git a/app/models/concerns/ci/metadatable.rb b/app/models/concerns/ci/metadatable.rb
index 8c3a05c23f0..71b26b70bbf 100644
--- a/app/models/concerns/ci/metadatable.rb
+++ b/app/models/concerns/ci/metadatable.rb
@@ -34,7 +34,7 @@ module Ci
     end
 
     def ensure_metadata
-      metadata || build_metadata(project: project)
+      metadata || build_metadata(project: project, partition_id: partition_id)
     end
 
     def degenerated?
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index d155a295481..3a438b2cf63 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -1566,7 +1566,7 @@ class MergeRequest < ApplicationRecord
   end
 
   def has_test_reports?
-    actual_head_pipeline&.has_reports?(Ci::JobArtifact.of_report_type(:test))
+    actual_head_pipeline&.complete_and_has_reports?(Ci::JobArtifact.of_report_type(:test))
   end
 
   def predefined_variables
@@ -1596,7 +1596,7 @@ class MergeRequest < ApplicationRecord
   end
 
   def has_accessibility_reports?
-    actual_head_pipeline.present? && actual_head_pipeline.has_reports?(Ci::JobArtifact.of_report_type(:accessibility))
+    actual_head_pipeline.present? && actual_head_pipeline.complete_and_has_reports?(Ci::JobArtifact.of_report_type(:accessibility))
   end
 
   def has_coverage_reports?
@@ -1604,7 +1604,7 @@ class MergeRequest < ApplicationRecord
   end
 
   def has_terraform_reports?
-    actual_head_pipeline&.has_reports?(Ci::JobArtifact.of_report_type(:terraform))
+    actual_head_pipeline&.complete_and_has_reports?(Ci::JobArtifact.of_report_type(:terraform))
   end
 
   def compare_accessibility_reports
@@ -1644,7 +1644,7 @@ class MergeRequest < ApplicationRecord
   end
 
   def has_codequality_reports?
-    actual_head_pipeline&.has_reports?(Ci::JobArtifact.of_report_type(:codequality))
+    actual_head_pipeline&.complete_and_has_reports?(Ci::JobArtifact.of_report_type(:codequality))
   end
 
   def compare_codequality_reports
@@ -1694,11 +1694,11 @@ class MergeRequest < ApplicationRecord
   end
 
   def has_sast_reports?
-    !!actual_head_pipeline&.has_reports?(::Ci::JobArtifact.of_report_type(:sast))
+    !!actual_head_pipeline&.complete_and_has_reports?(::Ci::JobArtifact.of_report_type(:sast))
   end
 
   def has_secret_detection_reports?
-    !!actual_head_pipeline&.has_reports?(::Ci::JobArtifact.of_report_type(:secret_detection))
+    !!actual_head_pipeline&.complete_and_has_reports?(::Ci::JobArtifact.of_report_type(:secret_detection))
   end
 
   def compare_sast_reports(current_user)
diff --git a/app/models/project.rb b/app/models/project.rb
index 0be24252fa8..5130a476332 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -51,8 +51,6 @@ class Project < ApplicationRecord
   BoardLimitExceeded = Class.new(StandardError)
   ExportLimitExceeded = Class.new(StandardError)
 
-  ignore_columns :mirror_last_update_at, :mirror_last_successful_update_at, remove_after: '2021-09-22', remove_with: '14.4'
-  ignore_columns :pull_mirror_branch_prefix, remove_after: '2021-09-22', remove_with: '14.4'
   ignore_columns :build_coverage_regex, remove_after: '2022-10-22', remove_with: '15.5'
 
   STATISTICS_ATTRIBUTE = 'repositories_count'
diff --git a/app/services/ci/create_pipeline_service.rb b/app/services/ci/create_pipeline_service.rb
index 02f25a82307..af175b8da1c 100644
--- a/app/services/ci/create_pipeline_service.rb
+++ b/app/services/ci/create_pipeline_service.rb
@@ -23,6 +23,7 @@ module Ci
                 Gitlab::Ci::Pipeline::Chain::RemoveUnwantedChatJobs,
                 Gitlab::Ci::Pipeline::Chain::SeedBlock,
                 Gitlab::Ci::Pipeline::Chain::EvaluateWorkflowRules,
+                Gitlab::Ci::Pipeline::Chain::AssignPartition,
                 Gitlab::Ci::Pipeline::Chain::Seed,
                 Gitlab::Ci::Pipeline::Chain::Limit::Size,
                 Gitlab::Ci::Pipeline::Chain::Limit::Deployments,
diff --git a/app/services/ci/job_artifacts/track_artifact_report_service.rb b/app/services/ci/job_artifacts/track_artifact_report_service.rb
index 349050c173e..d553d0b4e6f 100644
--- a/app/services/ci/job_artifacts/track_artifact_report_service.rb
+++ b/app/services/ci/job_artifacts/track_artifact_report_service.rb
@@ -10,7 +10,7 @@ module Ci
 
       def execute(pipeline)
         REPORT_TRACKED.each do |report|
-          if pipeline.has_reports?(Ci::JobArtifact.of_report_type(report))
+          if pipeline.complete_and_has_reports?(Ci::JobArtifact.of_report_type(report))
             track_usage_event(event_name(report), [pipeline.id, pipeline.user_id].join(VALUES_DELIMITER))
           end
         end
diff --git a/app/services/ci/pipelines/add_job_service.rb b/app/services/ci/pipelines/add_job_service.rb
index fc852bc3edd..dfbb37cf0dc 100644
--- a/app/services/ci/pipelines/add_job_service.rb
+++ b/app/services/ci/pipelines/add_job_service.rb
@@ -39,11 +39,13 @@ module Ci
         job.pipeline = pipeline
         job.project = pipeline.project
         job.ref = pipeline.ref
+        job.partition_id = pipeline.partition_id
 
         # update metadata since it might have been lazily initialised before this call
         # metadata is present on `Ci::Processable`
         if job.respond_to?(:metadata) && job.metadata
           job.metadata.project = pipeline.project
+          job.metadata.partition_id = pipeline.partition_id
         end
       end
     end
diff --git a/app/services/issues/export_csv_service.rb b/app/services/issues/export_csv_service.rb
index 6209127bd86..46e4b865dc3 100644
--- a/app/services/issues/export_csv_service.rb
+++ b/app/services/issues/export_csv_service.rb
@@ -5,20 +5,20 @@ module Issues
     include Gitlab::Routing.url_helpers
     include GitlabRoutingHelper
 
-    def initialize(issuables_relation, project)
-      super
+    def initialize(issuables_relation, project, user = nil)
+      super(issuables_relation, project)
 
       @labels = @issuables.labels_hash.transform_values { |labels| labels.sort.join(',').presence }
     end
 
-    def email(user)
-      Notify.issues_csv_email(user, project, csv_data, csv_builder.status).deliver_now
+    def email(mail_to_user)
+      Notify.issues_csv_email(mail_to_user, project, csv_data, csv_builder.status).deliver_now
     end
 
     private
 
     def associations_to_preload
-      %i(author assignees timelogs milestone project)
+      [:author, :assignees, :timelogs, :milestone, { project: { namespace: :route } }]
     end
 
     def header_to_value_hash
diff --git a/app/views/projects/pipelines/_with_tabs.html.haml b/app/views/projects/pipelines/_with_tabs.html.haml
index 78e404d15c6..e83547fd8f8 100644
--- a/app/views/projects/pipelines/_with_tabs.html.haml
+++ b/app/views/projects/pipelines/_with_tabs.html.haml
@@ -42,7 +42,7 @@
     #js-pipeline-tests-detail{ data: { summary_endpoint: summary_project_pipeline_tests_path(@project, @pipeline, format: :json),
       suite_endpoint: project_pipeline_test_path(@project, @pipeline, suite_name: 'suite', format: :json),
       blob_path: project_blob_path(@project, @pipeline.sha),
-      has_test_report: @pipeline.has_reports?(Ci::JobArtifact.of_report_type(:test)).to_s,
+      has_test_report: @pipeline.complete_and_has_reports?(Ci::JobArtifact.of_report_type(:test)).to_s,
       empty_state_image_path: image_path('illustrations/empty-state/empty-test-cases-lg.svg'),
       artifacts_expired_image_path: image_path('illustrations/pipeline.svg') } }
   = render_if_exists "projects/pipelines/tabs_content", pipeline: @pipeline, project: @project
diff --git a/app/views/shared/issuable/form/_merge_params.html.haml b/app/views/shared/issuable/form/_merge_params.html.haml
index e28c5b2af03..09086d3aa82 100644
--- a/app/views/shared/issuable/form/_merge_params.html.haml
+++ b/app/views/shared/issuable/form/_merge_params.html.haml
@@ -11,7 +11,7 @@
     - if issuable.can_remove_source_branch?(current_user)
       .form-check.gl-mb-3
         = hidden_field_tag 'merge_request[force_remove_source_branch]', '0', id: nil
-        = check_box_tag 'merge_request[force_remove_source_branch]', '1', issuable.force_remove_source_branch?, class: 'form-check-input'
+        = check_box_tag 'merge_request[force_remove_source_branch]', '1', issuable.force_remove_source_branch?, class: 'form-check-input js-form-update'
         = label_tag 'merge_request[force_remove_source_branch]', class: 'form-check-label' do
           = _("Delete source branch when merge request is accepted.")
     - if !project.squash_never?
@@ -21,7 +21,7 @@
           = check_box_tag 'merge_request[squash]', '1', project.squash_enabled_by_default?, class: 'form-check-input', disabled: 'true'
         - else
           = hidden_field_tag 'merge_request[squash]', '0', id: nil
-          = check_box_tag 'merge_request[squash]', '1', issuable_squash_option?(issuable, project), class: 'form-check-input'
+          = check_box_tag 'merge_request[squash]', '1', issuable_squash_option?(issuable, project), class: 'form-check-input js-form-update'
         = label_tag 'merge_request[squash]', class: 'form-check-label' do
           = _("Squash commits when merge request is accepted.")
           = link_to sprite_icon('question-o'), help_page_path('user/project/merge_requests/squash_and_merge'), target: '_blank', rel: 'noopener noreferrer'
diff --git a/config/initializers/sidekiq.rb b/config/initializers/sidekiq.rb
index 29df6da6ef1..262ef1dea21 100644
--- a/config/initializers/sidekiq.rb
+++ b/config/initializers/sidekiq.rb
@@ -127,3 +127,4 @@ end
 
 Sidekiq::Scheduled::Poller.prepend Gitlab::Patch::SidekiqPoller
 Sidekiq::Cron::Poller.prepend Gitlab::Patch::SidekiqPoller
+Sidekiq::Cron::Poller.prepend Gitlab::Patch::SidekiqCronPoller
diff --git a/config/initializers/wikicloth_redos_patch.rb b/config/initializers/wikicloth_redos_patch.rb
index 4ff545dd6f7..95901378891 100644
--- a/config/initializers/wikicloth_redos_patch.rb
+++ b/config/initializers/wikicloth_redos_patch.rb
@@ -1,3 +1,27 @@
+# This file contains code based on the wikicloth project:
+# https://github.com/nricciar/wikicloth
+#
+# Copyright (c) 2009 The wikicloth authors.
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
 # frozen_string_literal: true
 
 require 'wikicloth'
@@ -20,7 +44,10 @@ require 'digest/sha2'
 # - https://gitlab.com/gitlab-org/gitlab/-/issues/361266
 
 # Guard to ensure we remember to delete this patch if they ever release a new version of wikicloth
-raise 'New version of WikiCloth detected, please remove this patch' unless Gem::Version.new(WikiCloth::VERSION) == Gem::Version.new('0.8.1')
+unless Gem::Version.new(WikiCloth::VERSION) == Gem::Version.new('0.8.1')
+  raise 'New version of WikiCloth detected, please either update the version for this check, ' \
+    'or remove this patch if no longer needed'
+end
 
 # rubocop:disable Style/ClassAndModuleChildren
 # rubocop:disable Layout/SpaceAroundEqualsInParameterDefault
@@ -43,6 +70,12 @@ raise 'New version of WikiCloth detected, please remove this patch' unless Gem::
 # rubocop:disable Style/RegexpLiteralMixedPreserve
 # rubocop:disable Style/RedundantRegexpCharacterClass
 # rubocop:disable Performance/StringInclude
+# rubocop:disable Layout/LineLength
+# rubocop:disable Style/RedundantSelf
+# rubocop:disable Style/SymbolProc
+# rubocop:disable Layout/SpaceInsideParens
+# rubocop:disable Style/GuardClause
+# rubocop:disable Style/RedundantRegexpEscape
 module WikiCloth
   class WikiCloth
     def render(opt={})
@@ -218,3 +251,9 @@ end
 # rubocop:enable Style/RegexpLiteralMixedPreserve
 # rubocop:enable Style/RedundantRegexpCharacterClass
 # rubocop:enable Performance/StringInclude
+# rubocop:enable Layout/LineLength
+# rubocop:enable Style/RedundantSelf
+# rubocop:enable Style/SymbolProc
+# rubocop:enable Layout/SpaceInsideParens
+# rubocop:enable Style/GuardClause
+# rubocop:enable Style/RedundantRegexpEscape
diff --git a/config/initializers/wikicloth_ruby_3_patch.rb b/config/initializers/wikicloth_ruby_3_patch.rb
new file mode 100644
index 00000000000..d80383a125d
--- /dev/null
+++ b/config/initializers/wikicloth_ruby_3_patch.rb
@@ -0,0 +1,272 @@
+# This file contains code based on the wikicloth project:
+# https://github.com/nricciar/wikicloth
+#
+# Copyright (c) 2009 The wikicloth authors.
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# frozen_string_literal: true
+
+require 'wikicloth'
+require 'wikicloth/wiki_buffer/var'
+
+# Adds patch for changes in this PRs:
+#
+# https://github.com/nricciar/wikicloth/pull/110
+#
+# The maintainers are not releasing new versions, so we
+# need to patch it here.
+#
+# If they ever do release a version, then we can remove this file.
+#
+# See:
+# - https://gitlab.com/gitlab-org/gitlab/-/issues/372400
+
+# Guard to ensure we remember to delete this patch if they ever release a new version of wikicloth
+unless Gem::Version.new(WikiCloth::VERSION) == Gem::Version.new('0.8.1')
+  raise 'New version of WikiCloth detected, please either update the version for this check, ' \
+    'or remove this patch if no longer needed'
+end
+
+# rubocop:disable Style/ClassAndModuleChildren
+# rubocop:disable Style/HashSyntax
+# rubocop:disable Layout/SpaceAfterComma
+# rubocop:disable Style/RescueStandardError
+# rubocop:disable Metrics/AbcSize
+# rubocop:disable Metrics/CyclomaticComplexity
+# rubocop:disable Metrics/PerceivedComplexity
+# rubocop:disable Cop/LineBreakAroundConditionalBlock
+# rubocop:disable Layout/EmptyLineAfterGuardClause
+# rubocop:disable Performance/ReverseEach
+# rubocop:disable Style/PerlBackrefs
+# rubocop:disable Style/RedundantRegexpCharacterClass
+# rubocop:disable Performance/StringInclude
+# rubocop:disable Style/IfUnlessModifier
+# rubocop:disable Layout/LineLength
+# rubocop:disable Lint/DeprecatedClassMethods
+# rubocop:disable Lint/UselessAssignment
+# rubocop:disable Lint/RedundantStringCoercion
+# rubocop:disable Style/StringLiteralsInInterpolation
+# rubocop:disable Lint/UriEscapeUnescape
+# rubocop:disable Style/For
+# rubocop:disable Style/SlicingWithRange
+# rubocop:disable Style/GuardClause
+# rubocop:disable Style/ZeroLengthPredicate
+# rubocop:disable Cop/LineBreakAfterGuardClauses
+# rubocop:disable Layout/MultilineHashBraceLayout
+module WikiCloth
+  class WikiCloth
+    class MathExtension < Extension
+      # <math>latex markup</math>
+      #
+      element 'math', :skip_html => true, :run_globals => false do |buffer|
+        blahtex_path = @options[:blahtex_path] || '/usr/bin/blahtex'
+        blahtex_png_path = @options[:blahtex_png_path] || '/tmp'
+        blahtex_options = @options[:blahtex_options] || '--texvc-compatible-commands --mathml-version-1-fonts --disallow-plane-1 --spacing strict'
+
+        if File.exists?(blahtex_path) && @options[:math_formatter] != :google
+          begin
+            # pass tex markup to blahtex
+            response = IO.popen("#{blahtex_path} #{blahtex_options} --png --mathml --png-directory #{blahtex_png_path}","w+") do |pipe|
+              pipe.write(buffer.element_content)
+              pipe.close_write
+              pipe.gets
+            end
+
+            xml_response = REXML::Document.new(response).root
+
+            if @options[:blahtex_html_prefix]
+              # render as embedded image
+              file_md5 = xml_response.elements["png/md5"].text
+              "<img src=\"#{File.join(@options[:blahtex_html_prefix],"#{file_md5}.png")}\" />"
+            else
+              # render as mathml
+              html = xml_response.elements["mathml/markup"].text
+              "<math xmlns=\"http://www.w3.org/1998/Math/MathML\">#{xml_response.elements["mathml/markup"].children.to_s}</math>"
+            end
+          rescue => err
+            # blahtex error
+            "<span class=\"error\">#{I18n.t("unable to parse mathml", :error => err)}</span>"
+          end
+        else
+          # if blahtex does not exist fallback to google charts api
+          # This is the patched line from:
+          # https://github.com/nricciar/wikicloth/pull/110/files#diff-f0cb4c400957bbdcc4c97d69d2aa7f48d8ba56c5943e484863f620605d7d17d4R37
+          encoded_string = URI.encode_www_form_component(buffer.element_content)
+          "<img src=\"https://chart.googleapis.com/chart?cht=tx&chl=#{encoded_string}\" />"
+        end
+      end
+    end
+
+    class WikiBuffer::Var < WikiBuffer
+      def default_functions(name,params)
+        case name
+        when "#if"
+          params.first.blank? ? params[2] : params[1]
+        when "#switch"
+          match = params.first
+          default = nil
+          for p in params[1..-1]
+            temp = p.split("=")
+            if p !~ /=/ && temp.length == 1 && p == params.last
+              return p
+            elsif temp.instance_of?(Array) && temp.length > 0
+              test = temp.first.strip
+              default = temp[1..-1].join("=").strip if test == "#default"
+              return temp[1..-1].join("=").strip if test == match || (test == "none" && match.blank?)
+            end
+          end
+          default.nil? ? "" : default
+        when "#expr"
+          begin
+            ExpressionParser::Parser.new.parse(params.first)
+          rescue RuntimeError
+            I18n.t('expression error', :error => $!)
+          end
+        when "#ifexpr"
+          val = false
+          begin
+            val = ExpressionParser::Parser.new.parse(params.first)
+          rescue RuntimeError
+          end
+          if val
+            params[1]
+          else
+            params[2]
+          end
+        when "#ifeq"
+          if params[0] =~ /^[0-9A-Fa-f]+$/ && params[1] =~ /^[0-9A-Fa-f]+$/
+            params[0].to_i == params[1].to_i ? params[2] : params[3]
+          else
+            params[0] == params[1] ? params[2] : params[3]
+          end
+        when "#len"
+          params.first.length
+        when "#sub"
+          params.first[params[1].to_i,params[2].to_i]
+        when "#pad"
+          case params[3]
+          when "right"
+            params[0].ljust(params[1].to_i,params[2])
+          when "center"
+            params[0].center(params[1].to_i,params[2])
+          else
+            params[0].rjust(params[1].to_i,params[2])
+          end
+        when "#iferror"
+          params.first =~ /error/ ? params[1] : params[2]
+        when "#capture"
+          @options[:params][params.first] = params[1]
+          ""
+        when "urlencode"
+          # This is the patched line from:
+          # https://github.com/nricciar/wikicloth/pull/110/files#diff-f262faf4fadb222cca87185be0fb65b3f49659abc840794cc83a736d41310fb1R170
+          URI.encode_www_form_component(params.first)
+        when "lc"
+          params.first.downcase
+        when "uc"
+          params.first.upcase
+        when "ucfirst"
+          params.first.capitalize
+        when "lcfirst"
+          params.first[0,1].downcase + params.first[1..-1]
+        when "anchorencode"
+          params.first.gsub(/\s+/,'_')
+        when "plural"
+          begin
+            expr_value = ExpressionParser::Parser.new.parse(params.first)
+            expr_value.to_i == 1 ? params[1] : params[2]
+          rescue RuntimeError
+            I18n.t('expression error', :error => $!)
+          end
+        when "ns"
+          values = {
+            "" => "", "0" => "",
+            "1" => localise_ns("Talk"), "talk" => localise_ns("Talk"),
+            "6" => localise_ns("File"), "file" => localise_ns("File"), "image" => localise_ns("File"),
+            "10" => localise_ns("Template"), "template" => localise_ns("Template"),
+            "14" => localise_ns("Category"), "category" => localise_ns("Category"),
+            "-1" => localise_ns("Special"), "special" => localise_ns("Special"),
+            "12" => localise_ns("Help"), "help" => localise_ns("Help"),
+            "-2" => localise_ns("Media"), "media" => localise_ns("Media") }
+
+          values[localise_ns(params.first,:en).gsub(/\s+/,'_').downcase]
+        when "#language"
+          WikiNamespaces.language_name(params.first)
+        when "#tag"
+          return "" if params.empty?
+          elem = Builder::XmlMarkup.new
+          return elem.tag!(params.first) if params.length == 1
+          return elem.tag!(params.first) { |e| e << params.last } if params.length == 2
+          tag_attrs = {}
+          params[1..-2].each do |attr|
+            tag_attrs[$1] = $2 if attr =~ /^\s*([\w]+)\s*=\s*"(.*)"\s*$/
+          end
+          elem.tag!(params.first,tag_attrs) { |e| e << params.last }
+        when "debug"
+          ret = nil
+          case params.first
+          when "param"
+            @options[:buffer].buffers.reverse.each do |b|
+              if b.instance_of?(WikiBuffer::HTMLElement) && b.element_name == "template"
+                ret = b.get_param(params[1])
+              end
+            end
+            ret
+          when "buffer"
+            ret = "<pre>"
+            buffer = @options[:buffer].buffers
+            buffer.each do |b|
+              ret += " --- #{b.class}"
+              ret += b.instance_of?(WikiBuffer::HTMLElement) ? " -- #{b.element_name}\n" : " -- #{b.data}\n"
+            end
+            "#{ret}</pre>"
+          end
+        end
+      end
+    end
+  end
+end
+# rubocop:enable Style/ClassAndModuleChildren
+# rubocop:enable Style/HashSyntax
+# rubocop:enable Layout/SpaceAfterComma
+# rubocop:enable Style/RescueStandardError
+# rubocop:enable Metrics/AbcSize
+# rubocop:enable Metrics/CyclomaticComplexity
+# rubocop:enable Metrics/PerceivedComplexity
+# rubocop:enable Cop/LineBreakAroundConditionalBlock
+# rubocop:enable Layout/EmptyLineAfterGuardClause
+# rubocop:enable Performance/ReverseEach
+# rubocop:enable Style/PerlBackrefs
+# rubocop:enable Style/RedundantRegexpCharacterClass
+# rubocop:enable Performance/StringInclude
+# rubocop:enable Style/IfUnlessModifier
+# rubocop:enable Layout/LineLength
+# rubocop:enable Lint/DeprecatedClassMethods
+# rubocop:enable Lint/UselessAssignment
+# rubocop:enable Lint/RedundantStringCoercion
+# rubocop:enable Style/StringLiteralsInInterpolation
+# rubocop:enable Lint/UriEscapeUnescape
+# rubocop:enable Style/For
+# rubocop:enable Style/SlicingWithRange
+# rubocop:enable Style/GuardClause
+# rubocop:enable Style/ZeroLengthPredicate
+# rubocop:enable Cop/LineBreakAfterGuardClauses
+# rubocop:enable Layout/MultilineHashBraceLayout
diff --git a/config/metrics/counts_28d/20210216174910_analytics_unique_visits_for_any_target_monthly.yml b/config/metrics/counts_28d/20210216174910_analytics_unique_visits_for_any_target_monthly.yml
index e766c555d3a..fbf4be136cb 100644
--- a/config/metrics/counts_28d/20210216174910_analytics_unique_visits_for_any_target_monthly.yml
+++ b/config/metrics/counts_28d/20210216174910_analytics_unique_visits_for_any_target_monthly.yml
@@ -48,7 +48,6 @@ tier:
 - premium
 - ultimate
 performance_indicator_type:
-- smau
 - gmau
 - paid_gmau
 milestone: "<13.9"
diff --git a/config/metrics/counts_28d/20220905210112_users_visiting_environments_pages_monthly.yml b/config/metrics/counts_28d/20220905210112_users_visiting_environments_pages_monthly.yml
new file mode 100644
index 00000000000..3eac5ca1c01
--- /dev/null
+++ b/config/metrics/counts_28d/20220905210112_users_visiting_environments_pages_monthly.yml
@@ -0,0 +1,26 @@
+---
+key_path: redis_hll_counters.environments.users_visiting_environments_pages_monthly
+description: Monthly count of unique users visiting environments pages
+product_section: ops
+product_stage: release
+product_group: release
+product_category: environment_management
+value_type: number
+status: active
+milestone: "15.4"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/97063
+time_frame: 28d
+data_source: redis_hll
+data_category: optional
+instrumentation_class: RedisHLLMetric
+performance_indicator_type: []
+options:
+  events:
+    - users_visiting_environments_pages
+distribution:
+- ce
+- ee
+tier:
+- free
+- premium
+- ultimate
diff --git a/config/metrics/counts_all/20220825232556_count_user_auth.yml b/config/metrics/counts_all/20220825232556_count_user_auth.yml
index 623e0dbb7a4..c849cf82047 100644
--- a/config/metrics/counts_all/20220825232556_count_user_auth.yml
+++ b/config/metrics/counts_all/20220825232556_count_user_auth.yml
@@ -13,7 +13,8 @@ time_frame: all
 data_source: database
 instrumentation_class: CountUserAuthMetric
 data_category: optional
-performance_indicator_type: []
+performance_indicator_type:
+- smau
 distribution:
 - ce
 - ee
diff --git a/db/migrate/20220906093857_add_column_branch_filter_strategy_to_web_hooks.rb b/db/migrate/20220906093857_add_column_branch_filter_strategy_to_web_hooks.rb
new file mode 100644
index 00000000000..739bedda9e0
--- /dev/null
+++ b/db/migrate/20220906093857_add_column_branch_filter_strategy_to_web_hooks.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddColumnBranchFilterStrategyToWebHooks < Gitlab::Database::Migration[2.0]
+  def change
+    add_column :web_hooks, :branch_filter_strategy, :integer, null: false, default: 0, limit: 2
+  end
+end
diff --git a/db/schema_migrations/20220906093857 b/db/schema_migrations/20220906093857
new file mode 100644
index 00000000000..a5bc36ab6ef
--- /dev/null
+++ b/db/schema_migrations/20220906093857
@@ -0,0 +1 @@
+394f346e3a93f8a6b74fd0461eb59f569c6a18f90ae653c330a38e3a3706b5f6
\ No newline at end of file
diff --git a/db/structure.sql b/db/structure.sql
index 8c2f64638f4..aa1548927a3 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -22922,7 +22922,8 @@ CREATE TABLE web_hooks (
     disabled_until timestamp with time zone,
     encrypted_url_variables bytea,
     encrypted_url_variables_iv bytea,
-    integration_id integer
+    integration_id integer,
+    branch_filter_strategy smallint DEFAULT 0 NOT NULL
 );
 
 CREATE SEQUENCE web_hooks_id_seq
diff --git a/doc/raketasks/backup_gitlab.md b/doc/raketasks/backup_gitlab.md
index 3f241ef2f05..e80fea21064 100644
--- a/doc/raketasks/backup_gitlab.md
+++ b/doc/raketasks/backup_gitlab.md
@@ -744,8 +744,8 @@ You can send backups to a locally-mounted share (for example, `NFS`,`CIFS`, or `
 
 To do this, you must set the following configuration keys:
 
-- `backup_upload_remote_directory`: mounted directory that backups are copied to.
-- `backup_upload_connection.local_root`: subdirectory of the `backup_upload_remote_directory` directory. It is created if it doesn't exist.
+- `backup_upload_connection.local_root`: mounted directory that backups are copied to.
+- `backup_upload_remote_directory`: subdirectory of the `backup_upload_connection.local_root` directory. It is created if it doesn't exist.
   If you want to copy the tarballs to the root of your mounted directory, use `.`.
 
 When mounted, the directory set in the `local_root` key must be owned by either:
diff --git a/doc/user/group/subgroups/index.md b/doc/user/group/subgroups/index.md
index 12434de5efc..94491aeac4e 100644
--- a/doc/user/group/subgroups/index.md
+++ b/doc/user/group/subgroups/index.md
@@ -201,7 +201,7 @@ role on an ancestor group, add the user to the subgroup again with a higher role
 ## Mention subgroups
 
 Mentioning subgroups ([`@<subgroup_name>`](../../discussions/index.md#mentions)) in issues, commits, and merge requests
-notifies all members of that group. Mentioning works the same as for projects and groups, and you can choose the group
+notifies all direct members of that group. Inherited members of a sub-group are not notified by mentions. Mentioning works the same as for projects and groups, and you can choose the group
 of people to be notified.
 
 <!-- ## Troubleshooting
diff --git a/lib/api/admin/batched_background_migrations.rb b/lib/api/admin/batched_background_migrations.rb
index 32980c192f7..5e03c27062b 100644
--- a/lib/api/admin/batched_background_migrations.rb
+++ b/lib/api/admin/batched_background_migrations.rb
@@ -27,9 +27,33 @@ module API
             end
           end
         end
+
+        resources 'batched_background_migrations/:id/resume' do
+          desc 'Resume a batched background migration'
+          params do
+            optional :database,
+              type: String,
+              values: Gitlab::Database.all_database_names,
+              desc: 'The name of the database',
+              default: 'main'
+            requires :id,
+              type: Integer,
+              desc: 'The batched background migration id'
+          end
+          put do
+            Gitlab::Database::SharedModel.using_connection(base_model.connection) do
+              batched_background_migration.execute!
+              present_entity(batched_background_migration)
+            end
+          end
+        end
       end
 
       helpers do
+        def batched_background_migration
+          @batched_background_migration ||= Gitlab::Database::BackgroundMigration::BatchedMigration.find(params[:id])
+        end
+
         def base_model
           database = params[:database] || Gitlab::Database::MAIN_DATABASE_NAME
           @base_model ||= Gitlab::Database.database_base_models[database]
diff --git a/lib/gitlab/ci/config/entry/legacy_variables.rb b/lib/gitlab/ci/config/entry/legacy_variables.rb
index 279e1ad8609..5379f707537 100644
--- a/lib/gitlab/ci/config/entry/legacy_variables.rb
+++ b/lib/gitlab/ci/config/entry/legacy_variables.rb
@@ -34,9 +34,9 @@ module Gitlab
 
           def expand_value(value)
             if value.is_a?(Hash)
-              { value: value[:value].to_s, description: value[:description] }
+              { value: value[:value].to_s, description: value[:description] }.compact
             else
-              { value: value.to_s, description: nil }
+              { value: value.to_s }
             end
           end
         end
diff --git a/lib/gitlab/ci/config/entry/variable.rb b/lib/gitlab/ci/config/entry/variable.rb
index 6c12a8e2c32..253888aadeb 100644
--- a/lib/gitlab/ci/config/entry/variable.rb
+++ b/lib/gitlab/ci/config/entry/variable.rb
@@ -30,7 +30,7 @@ module Gitlab
             end
 
             def value_with_data
-              { value: @config.to_s, description: nil }
+              { value: @config.to_s }
             end
           end
 
@@ -66,7 +66,7 @@ module Gitlab
             end
 
             def value_with_data
-              { value: value, description: config_description }
+              { value: value, description: config_description }.compact
             end
 
             def config_value
diff --git a/lib/gitlab/ci/pipeline/chain/assign_partition.rb b/lib/gitlab/ci/pipeline/chain/assign_partition.rb
new file mode 100644
index 00000000000..672d95fe747
--- /dev/null
+++ b/lib/gitlab/ci/pipeline/chain/assign_partition.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Ci
+    module Pipeline
+      module Chain
+        class AssignPartition < Chain::Base
+          include Chain::Helpers
+
+          DEFAULT_PARTITION_ID = 100
+
+          def perform!
+            @pipeline.partition_id = find_partition_id
+          end
+
+          def break?
+            @pipeline.errors.any?
+          end
+
+          private
+
+          # TODO handle parent-child pipelines
+          def find_partition_id
+            DEFAULT_PARTITION_ID
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/ci/pipeline/seed/build.rb b/lib/gitlab/ci/pipeline/seed/build.rb
index 93106b96af2..2e4267e986b 100644
--- a/lib/gitlab/ci/pipeline/seed/build.rb
+++ b/lib/gitlab/ci/pipeline/seed/build.rb
@@ -148,7 +148,9 @@ module Gitlab
               ref: @pipeline.ref,
               tag: @pipeline.tag,
               trigger_request: @pipeline.legacy_trigger,
-              protected: @pipeline.protected_ref?
+              protected: @pipeline.protected_ref?,
+              partition_id: @pipeline.partition_id,
+              metadata_attributes: { partition_id: @pipeline.partition_id }
             }
           end
 
diff --git a/lib/gitlab/ci/pipeline/seed/stage.rb b/lib/gitlab/ci/pipeline/seed/stage.rb
index 7cf6466cf4b..1c4247bd5ee 100644
--- a/lib/gitlab/ci/pipeline/seed/stage.rb
+++ b/lib/gitlab/ci/pipeline/seed/stage.rb
@@ -25,7 +25,8 @@ module Gitlab
             { name: @attributes.fetch(:name),
               position: @attributes.fetch(:index),
               pipeline: @pipeline,
-              project: @pipeline.project }
+              project: @pipeline.project,
+              partition_id: @pipeline.partition_id }
           end
 
           def seeds
diff --git a/lib/gitlab/database/background_migration/batched_migration.rb b/lib/gitlab/database/background_migration/batched_migration.rb
index 6df6ffce0c1..6f95dfebe60 100644
--- a/lib/gitlab/database/background_migration/batched_migration.rb
+++ b/lib/gitlab/database/background_migration/batched_migration.rb
@@ -8,6 +8,7 @@ module Gitlab
         BATCH_CLASS_MODULE = "#{JOB_CLASS_MODULE}::BatchingStrategies"
         MAXIMUM_FAILED_RATIO = 0.5
         MINIMUM_JOBS = 50
+        FINISHED_PROGRESS_VALUE = 100
 
         self.table_name = :batched_background_migrations
 
@@ -232,7 +233,15 @@ module Gitlab
           "BatchedMigration[id: #{id}]"
         end
 
+        # Computes an estimation of the progress of the migration in percents.
+        #
+        # Because `total_tuple_count` is an estimation of the tuples based on DB statistics
+        # when the migration is complete there can actually be more or less tuples that initially
+        # estimated as `total_tuple_count` so the progress may not show 100%. For that reason when
+        # we know migration completed successfully, we just return the 100 value
         def progress
+          return FINISHED_PROGRESS_VALUE if finished?
+
           return unless total_tuple_count.to_i > 0
 
           100 * migrated_tuple_count / total_tuple_count
diff --git a/lib/gitlab/nav/top_nav_menu_builder.rb b/lib/gitlab/nav/top_nav_menu_builder.rb
index 721ae1889b8..dca3432a6a1 100644
--- a/lib/gitlab/nav/top_nav_menu_builder.rb
+++ b/lib/gitlab/nav/top_nav_menu_builder.rb
@@ -6,9 +6,15 @@ module Gitlab
       def initialize
         @primary = []
         @secondary = []
+        @last_header_added = nil
       end
 
-      def add_primary_menu_item(**args)
+      def add_primary_menu_item(header: nil, **args)
+        if header && (header != @last_header_added)
+          add_menu_header(dest: @primary, title: header)
+          @last_header_added = header
+        end
+
         add_menu_item(dest: @primary, **args)
       end
 
@@ -30,6 +36,12 @@ module Gitlab
 
         dest.push(item)
       end
+
+      def add_menu_header(dest:, **args)
+        header = ::Gitlab::Nav::TopNavMenuHeader.build(**args)
+
+        dest.push(header)
+      end
     end
   end
 end
diff --git a/lib/gitlab/nav/top_nav_menu_header.rb b/lib/gitlab/nav/top_nav_menu_header.rb
new file mode 100644
index 00000000000..520091dbd97
--- /dev/null
+++ b/lib/gitlab/nav/top_nav_menu_header.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Nav
+    class TopNavMenuHeader
+      def self.build(title:)
+        {
+          type: :header,
+          title: title
+        }
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/nav/top_nav_menu_item.rb b/lib/gitlab/nav/top_nav_menu_item.rb
index 4cb38e6bb9b..75eb0e8a264 100644
--- a/lib/gitlab/nav/top_nav_menu_item.rb
+++ b/lib/gitlab/nav/top_nav_menu_item.rb
@@ -11,6 +11,7 @@ module Gitlab
       def self.build(id:, title:, active: false, icon: '', href: '', view: '', css_class: nil, data: nil, emoji: nil)
         {
           id: id,
+          type: :item,
           title: title,
           active: active,
           icon: icon,
diff --git a/lib/gitlab/patch/sidekiq_cron_poller.rb b/lib/gitlab/patch/sidekiq_cron_poller.rb
new file mode 100644
index 00000000000..630c364d455
--- /dev/null
+++ b/lib/gitlab/patch/sidekiq_cron_poller.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+# Patch to address https://github.com/ondrejbartas/sidekiq-cron/issues/361
+# This restores the poll interval to v1.2.0 behavior
+# https://github.com/ondrejbartas/sidekiq-cron/blob/v1.2.0/lib/sidekiq/cron/poller.rb#L36-L38
+# This patch only applies to v1.4.0
+require 'sidekiq/cron/version'
+
+if Gem::Version.new(Sidekiq::Cron::VERSION) != Gem::Version.new('1.4.0')
+  raise 'New version of sidekiq-cron detected, please remove or update this patch'
+end
+
+module Gitlab
+  module Patch
+    module SidekiqCronPoller
+      def poll_interval_average
+        Sidekiq.options[:poll_interval] || Sidekiq::Cron::POLL_INTERVAL
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/usage_data_counters/known_events/common.yml b/lib/gitlab/usage_data_counters/known_events/common.yml
index 582f1dd797c..135b90cad7c 100644
--- a/lib/gitlab/usage_data_counters/known_events/common.yml
+++ b/lib/gitlab/usage_data_counters/known_events/common.yml
@@ -357,3 +357,8 @@
   category: manage
   aggregation: weekly
   expiry: 42
+# Environments page
+- name: users_visiting_environments_pages
+  category: environments
+  redis_slot: users
+  aggregation: weekly
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index f4ea1a73572..127caf05007 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -41407,9 +41407,18 @@ msgstr ""
 msgid "Too many users found. Quick actions are limited to at most %{max_count} users"
 msgstr ""
 
+msgid "TopNav|Explore"
+msgstr ""
+
 msgid "TopNav|Go back"
 msgstr ""
 
+msgid "TopNav|Switch to"
+msgstr ""
+
+msgid "TopNav|Your dashboard"
+msgstr ""
+
 msgid "Topic %{source_topic} was successfully merged into topic %{target_topic}."
 msgstr ""
 
diff --git a/qa/qa/page/component/content_editor.rb b/qa/qa/page/component/content_editor.rb
index b3a42634fe7..1f022665477 100644
--- a/qa/qa/page/component/content_editor.rb
+++ b/qa/qa/page/component/content_editor.rb
@@ -21,6 +21,10 @@ module QA
           base.view 'app/assets/javascripts/content_editor/components/toolbar_image_button.vue' do
             element :file_upload_field
           end
+
+          base.view 'app/assets/javascripts/pages/shared/wikis/components/wiki_form.vue' do
+            element :wiki_hidden_content
+          end
         end
 
         def add_heading(heading, text)
@@ -41,6 +45,13 @@ module QA
             text_area.send_keys(:return)
             find_element(:file_upload_field, visible: false).send_keys(image_path)
           end
+
+          wait_for_requests
+
+          QA::Support::Retrier.retry_on_exception do
+            source = find_element(:wiki_hidden_content, visible: false)
+            source.value =~ %r{uploads/.*#{::File.basename(image_path)}}
+          end
         end
 
         private
diff --git a/scripts/frontend/startup_css/constants.js b/scripts/frontend/startup_css/constants.js
index 10d60657e09..5143c04dc37 100644
--- a/scripts/frontend/startup_css/constants.js
+++ b/scripts/frontend/startup_css/constants.js
@@ -41,6 +41,7 @@ const ROOT_RAILS = IS_EE ? path.join(ROOT, 'ee') : ROOT;
 const FIXTURES_FOLDER_NAME = IS_EE ? 'fixtures-ee' : 'fixtures';
 const FIXTURES_ROOT = path.join(ROOT, 'tmp/tests/frontend', FIXTURES_FOLDER_NAME);
 const PATH_SIGNIN_HTML = path.join(FIXTURES_ROOT, 'startup_css/sign-in.html');
+const PATH_SIGNIN_OLD_HTML = path.join(FIXTURES_ROOT, 'startup_css/sign-in-old.html');
 const PATH_ASSETS = path.join(ROOT, 'tmp/startup_css_assets');
 const PATH_STARTUP_SCSS = path.join(ROOT_RAILS, 'app/assets/stylesheets/startup');
 
@@ -80,7 +81,7 @@ const OUTPUTS = [
   }),
   {
     outFile: 'startup-signin',
-    htmlPaths: [PATH_SIGNIN_HTML],
+    htmlPaths: [PATH_SIGNIN_HTML, PATH_SIGNIN_OLD_HTML],
     cssKeys: [APPLICATION_CSS_PREFIX, UTILITIES_CSS_PREFIX],
     purgeOptions: {
       safelist: {
diff --git a/spec/controllers/projects/environments_controller_spec.rb b/spec/controllers/projects/environments_controller_spec.rb
index 1a6edab795d..04d8a398cff 100644
--- a/spec/controllers/projects/environments_controller_spec.rb
+++ b/spec/controllers/projects/environments_controller_spec.rb
@@ -32,6 +32,11 @@ RSpec.describe Projects::EnvironmentsController do
 
         get :index, params: environment_params
       end
+
+      it_behaves_like 'tracking unique visits', :index do
+        let(:request_params) { environment_params }
+        let(:target_id) { 'users_visiting_environments_pages' }
+      end
     end
 
     context 'when requesting JSON response for folders' do
@@ -169,6 +174,18 @@ RSpec.describe Projects::EnvironmentsController do
         expect(response).to be_ok
         expect(response).to render_template 'folder'
       end
+
+      it_behaves_like 'tracking unique visits', :folder do
+        let(:request_params) do
+          {
+            namespace_id: project.namespace,
+            project_id: project,
+            id: 'staging-1.0'
+          }
+        end
+
+        let(:target_id) { 'users_visiting_environments_pages' }
+      end
     end
 
     context 'when using JSON format' do
@@ -197,6 +214,11 @@ RSpec.describe Projects::EnvironmentsController do
 
         expect(response).to be_ok
       end
+
+      it_behaves_like 'tracking unique visits', :show do
+        let(:request_params) { environment_params }
+        let(:target_id) { 'users_visiting_environments_pages' }
+      end
     end
 
     context 'with invalid id' do
@@ -210,12 +232,30 @@ RSpec.describe Projects::EnvironmentsController do
     end
   end
 
+  describe 'GET new' do
+    it 'responds with a status code 200' do
+      get :new, params: environment_params
+
+      expect(response).to be_ok
+    end
+
+    it_behaves_like 'tracking unique visits', :new do
+      let(:request_params) { environment_params }
+      let(:target_id) { 'users_visiting_environments_pages' }
+    end
+  end
+
   describe 'GET edit' do
     it 'responds with a status code 200' do
       get :edit, params: environment_params
 
       expect(response).to be_ok
     end
+
+    it_behaves_like 'tracking unique visits', :edit do
+      let(:request_params) { environment_params }
+      let(:target_id) { 'users_visiting_environments_pages' }
+    end
   end
 
   describe 'PATCH #update' do
@@ -230,6 +270,11 @@ RSpec.describe Projects::EnvironmentsController do
         expect(response).to have_gitlab_http_status(:ok)
         expect(json_response['path']).to eq("/#{project.full_path}/-/environments/#{environment.id}")
       end
+
+      it_behaves_like 'tracking unique visits', :update do
+        let(:request_params) { params }
+        let(:target_id) { 'users_visiting_environments_pages' }
+      end
     end
 
     context "when environment params are invalid" do
@@ -294,6 +339,11 @@ RSpec.describe Projects::EnvironmentsController do
           { 'redirect_url' =>
               project_environment_url(project, environment) })
       end
+
+      it_behaves_like 'tracking unique visits', :stop do
+        let(:request_params) { environment_params(format: :json) }
+        let(:target_id) { 'users_visiting_environments_pages' }
+      end
     end
 
     context 'when no stop action' do
@@ -321,6 +371,11 @@ RSpec.describe Projects::EnvironmentsController do
 
       it_behaves_like 'successful response for #cancel_auto_stop'
 
+      it_behaves_like 'tracking unique visits', :cancel_auto_stop do
+        let(:request_params) { environment_params }
+        let(:target_id) { 'users_visiting_environments_pages' }
+      end
+
       context 'when user is reporter' do
         let(:user) { reporter }
 
@@ -357,6 +412,11 @@ RSpec.describe Projects::EnvironmentsController do
 
         get :terminal, params: environment_params
       end
+
+      it_behaves_like 'tracking unique visits', :terminal do
+        let(:request_params) { environment_params }
+        let(:target_id) { 'users_visiting_environments_pages' }
+      end
     end
 
     context 'with invalid id' do
@@ -859,6 +919,11 @@ RSpec.describe Projects::EnvironmentsController do
         expect(response).to have_gitlab_http_status(:ok)
         expect(json_response['path']).to eq("/#{project.full_path}/-/environments/#{json_response['environment']['id']}")
       end
+
+      it_behaves_like 'tracking unique visits', :create do
+        let(:request_params) { params }
+        let(:target_id) { 'users_visiting_environments_pages' }
+      end
     end
 
     context "when environment params are invalid" do
diff --git a/spec/frontend/fixtures/startup_css.rb b/spec/frontend/fixtures/startup_css.rb
index cf7383fa6ca..bd2d63a1827 100644
--- a/spec/frontend/fixtures/startup_css.rb
+++ b/spec/frontend/fixtures/startup_css.rb
@@ -69,11 +69,25 @@ RSpec.describe 'Startup CSS fixtures', type: :controller do
     it_behaves_like 'startup css project fixtures', 'dark'
   end
 
-  describe RegistrationsController, '(Startup CSS fixtures)', type: :controller do
+  describe SessionsController, '(Startup CSS fixtures)', type: :controller do
+    include DeviseHelpers
+
+    before do
+      set_devise_mapping(context: request)
+    end
+
     it 'startup_css/sign-in.html' do
       get :new
 
       expect(response).to be_successful
     end
+
+    it 'startup_css/sign-in-old.html' do
+      stub_feature_flags(restyle_login_page: false)
+
+      get :new
+
+      expect(response).to be_successful
+    end
   end
 end
diff --git a/spec/frontend/nav/components/top_nav_menu_sections_spec.js b/spec/frontend/nav/components/top_nav_menu_sections_spec.js
index d56542fe572..0ed5cffd93f 100644
--- a/spec/frontend/nav/components/top_nav_menu_sections_spec.js
+++ b/spec/frontend/nav/components/top_nav_menu_sections_spec.js
@@ -4,11 +4,20 @@ import TopNavMenuSections from '~/nav/components/top_nav_menu_sections.vue';
 const TEST_SECTIONS = [
   {
     id: 'primary',
-    menuItems: [{ id: 'test', href: '/test/href' }, { id: 'foo' }, { id: 'bar' }],
+    menuItems: [
+      { type: 'header', title: 'Heading' },
+      { type: 'item', id: 'test', href: '/test/href' },
+      { type: 'header', title: 'Another Heading' },
+      { type: 'item', id: 'foo' },
+      { type: 'item', id: 'bar' },
+    ],
   },
   {
     id: 'secondary',
-    menuItems: [{ id: 'lorem' }, { id: 'ipsum' }],
+    menuItems: [
+      { type: 'item', id: 'lorem' },
+      { type: 'item', id: 'ipsum' },
+    ],
   },
 ];
 
@@ -25,10 +34,20 @@ describe('~/nav/components/top_nav_menu_sections.vue', () => {
   };
 
   const findMenuItemModels = (parent) =>
-    parent.findAll('[data-testid="menu-item"]').wrappers.map((x) => ({
-      menuItem: x.props('menuItem'),
-      classes: x.classes(),
-    }));
+    parent.findAll('[data-testid="menu-header"],[data-testid="menu-item"]').wrappers.map((x) => {
+      return {
+        menuItem: x.vm
+          ? {
+              type: 'item',
+              ...x.props('menuItem'),
+            }
+          : {
+              type: 'header',
+              title: x.text(),
+            },
+        classes: x.classes(),
+      };
+    });
   const findSectionModels = () =>
     wrapper.findAll('[data-testid="menu-section"]').wrappers.map((x) => ({
       classes: x.classes(),
@@ -45,32 +64,31 @@ describe('~/nav/components/top_nav_menu_sections.vue', () => {
     });
 
     it('renders sections with menu items', () => {
+      const headerClasses = ['gl-px-4', 'gl-py-2', 'gl-text-gray-900', 'gl-display-block'];
+      const itemClasses = ['gl-w-full'];
+
       expect(findSectionModels()).toEqual([
         {
           classes: [],
-          menuItems: [
-            {
-              menuItem: TEST_SECTIONS[0].menuItems[0],
-              classes: ['gl-w-full'],
-            },
-            ...TEST_SECTIONS[0].menuItems.slice(1).map((menuItem) => ({
+          menuItems: TEST_SECTIONS[0].menuItems.map((menuItem, index) => {
+            const classes = menuItem.type === 'header' ? [...headerClasses] : [...itemClasses];
+            if (index > 0) classes.push(menuItem.type === 'header' ? 'gl-pt-3!' : 'gl-mt-1');
+            return {
               menuItem,
-              classes: ['gl-w-full', 'gl-mt-1'],
-            })),
-          ],
+              classes,
+            };
+          }),
         },
         {
           classes: [...TopNavMenuSections.BORDER_CLASSES.split(' '), 'gl-mt-3'],
-          menuItems: [
-            {
-              menuItem: TEST_SECTIONS[1].menuItems[0],
-              classes: ['gl-w-full'],
-            },
-            ...TEST_SECTIONS[1].menuItems.slice(1).map((menuItem) => ({
+          menuItems: TEST_SECTIONS[1].menuItems.map((menuItem, index) => {
+            const classes = menuItem.type === 'header' ? [...headerClasses] : [...itemClasses];
+            if (index > 0) classes.push(menuItem.type === 'header' ? 'gl-pt-3!' : 'gl-mt-1');
+            return {
               menuItem,
-              classes: ['gl-w-full', 'gl-mt-1'],
-            })),
-          ],
+              classes,
+            };
+          }),
         },
       ]);
     });
@@ -88,7 +106,7 @@ describe('~/nav/components/top_nav_menu_sections.vue', () => {
 
       menuItem.vm.$emit('click');
 
-      expect(wrapper.emitted('menu-item-click')).toEqual([[TEST_SECTIONS[0].menuItems[1]]]);
+      expect(wrapper.emitted('menu-item-click')).toEqual([[TEST_SECTIONS[0].menuItems[3]]]);
     });
   });
 
diff --git a/spec/frontend/pages/projects/merge_requests/edit/update_form_spec.js b/spec/frontend/pages/projects/merge_requests/edit/update_form_spec.js
new file mode 100644
index 00000000000..72077038dff
--- /dev/null
+++ b/spec/frontend/pages/projects/merge_requests/edit/update_form_spec.js
@@ -0,0 +1,59 @@
+import { setHTMLFixture, resetHTMLFixture } from 'jest/__helpers__/fixtures';
+import initFormUpdate from '~/pages/projects/merge_requests/edit/update_form';
+
+describe('Update form state', () => {
+  const submitEvent = new Event('submit', {
+    bubbles: true,
+    cancelable: true,
+  });
+
+  const submitForm = () => document.querySelector('.merge-request-form').dispatchEvent(submitEvent);
+  const hiddenInputs = () => document.querySelectorAll('input[type="hidden"]');
+  const checkboxes = () => document.querySelectorAll('.js-form-update');
+
+  beforeEach(() => {
+    setHTMLFixture(`
+    <form class="merge-request-form">
+        <div class="form-check">
+            <input type="hidden" name="merge_request[force_remove_source_branch]" value="0" autocomplete="off">
+            <input type="checkbox" name="merge_request[force_remove_source_branch]" id="merge_request_force_remove_source_branch" value="1" class="form-check-input js-form-update">
+        </div>
+        <div class="form-check">
+            <input type="hidden" name="merge_request[squash]" value="0" autocomplete="off">
+            <input type="checkbox" name="merge_request[squash]" id="merge_request_squash" value="1" class="form-check-input js-form-update">
+        </div>
+    </form>`);
+    initFormUpdate();
+  });
+
+  afterEach(() => {
+    resetHTMLFixture();
+  });
+
+  it('at initial state', () => {
+    submitForm();
+    expect(hiddenInputs()).toHaveLength(2);
+  });
+
+  it('when one element is checked', () => {
+    checkboxes()[0].setAttribute('checked', true);
+    submitForm();
+    expect(hiddenInputs()).toHaveLength(1);
+  });
+
+  it('when all elements are checked', () => {
+    checkboxes()[0].setAttribute('checked', true);
+    checkboxes()[1].setAttribute('checked', true);
+    submitForm();
+    expect(hiddenInputs()).toHaveLength(0);
+  });
+
+  it('when checked and then unchecked', () => {
+    checkboxes()[0].setAttribute('checked', true);
+    checkboxes()[0].removeAttribute('checked');
+    checkboxes()[1].setAttribute('checked', true);
+    checkboxes()[1].removeAttribute('checked');
+    submitForm();
+    expect(hiddenInputs()).toHaveLength(2);
+  });
+});
diff --git a/spec/frontend/pipelines/components/pipelines_filtered_search_spec.js b/spec/frontend/pipelines/components/pipelines_filtered_search_spec.js
index f958f12acd4..3b6ebedd724 100644
--- a/spec/frontend/pipelines/components/pipelines_filtered_search_spec.js
+++ b/spec/frontend/pipelines/components/pipelines_filtered_search_spec.js
@@ -2,10 +2,12 @@ import { GlFilteredSearch } from '@gitlab/ui';
 import { mount } from '@vue/test-utils';
 import MockAdapter from 'axios-mock-adapter';
 import { nextTick } from 'vue';
+import { mockTracking, unmockTracking } from 'helpers/tracking_helper';
 import Api from '~/api';
 import axios from '~/lib/utils/axios_utils';
 import PipelinesFilteredSearch from '~/pipelines/components/pipelines_list/pipelines_filtered_search.vue';
 import { OPERATOR_IS_ONLY } from '~/vue_shared/components/filtered_search_bar/constants';
+import { TRACKING_CATEGORIES } from '~/pipelines/constants';
 import { users, mockSearch, branches, tags } from '../mock_data';
 
 describe('Pipelines filtered search', () => {
@@ -177,4 +179,20 @@ describe('Pipelines filtered search', () => {
       expect(findFilteredSearch().props('value')).toHaveLength(expectedValueProp.length);
     });
   });
+
+  describe('tracking', () => {
+    afterEach(() => {
+      unmockTracking();
+    });
+
+    it('tracks filtered search click', () => {
+      const trackingSpy = mockTracking(undefined, wrapper.element, jest.spyOn);
+
+      findFilteredSearch().vm.$emit('submit', mockSearch);
+
+      expect(trackingSpy).toHaveBeenCalledWith(undefined, 'click_filtered_search', {
+        label: TRACKING_CATEGORIES.index,
+      });
+    });
+  });
 });
diff --git a/spec/frontend/pipelines/pipeline_multi_actions_spec.js b/spec/frontend/pipelines/pipeline_multi_actions_spec.js
index f554166da33..8b800cf34f3 100644
--- a/spec/frontend/pipelines/pipeline_multi_actions_spec.js
+++ b/spec/frontend/pipelines/pipeline_multi_actions_spec.js
@@ -1,12 +1,14 @@
 import { GlAlert, GlDropdown, GlSprintf, GlLoadingIcon } from '@gitlab/ui';
 import { shallowMount } from '@vue/test-utils';
 import MockAdapter from 'axios-mock-adapter';
+import { mockTracking, unmockTracking } from 'helpers/tracking_helper';
 import { extendedWrapper } from 'helpers/vue_test_utils_helper';
 import waitForPromises from 'helpers/wait_for_promises';
 import axios from '~/lib/utils/axios_utils';
 import PipelineMultiActions, {
   i18n,
 } from '~/pipelines/components/pipelines_list/pipeline_multi_actions.vue';
+import { TRACKING_CATEGORIES } from '~/pipelines/constants';
 
 describe('Pipeline Multi Actions Dropdown', () => {
   let wrapper;
@@ -136,4 +138,22 @@ describe('Pipeline Multi Actions Dropdown', () => {
       });
     });
   });
+
+  describe('tracking', () => {
+    afterEach(() => {
+      unmockTracking();
+    });
+
+    it('tracks artifacts dropdown click', () => {
+      const trackingSpy = mockTracking(undefined, wrapper.element, jest.spyOn);
+
+      createComponent();
+
+      findDropdown().vm.$emit('show');
+
+      expect(trackingSpy).toHaveBeenCalledWith(undefined, 'click_artifacts_dropdown', {
+        label: TRACKING_CATEGORIES.index,
+      });
+    });
+  });
 });
diff --git a/spec/frontend/pipelines/pipeline_url_spec.js b/spec/frontend/pipelines/pipeline_url_spec.js
index 25a97ecf49d..bba4ed6e5e4 100644
--- a/spec/frontend/pipelines/pipeline_url_spec.js
+++ b/spec/frontend/pipelines/pipeline_url_spec.js
@@ -1,12 +1,15 @@
+import { mockTracking, unmockTracking } from 'helpers/tracking_helper';
 import { shallowMountExtended } from 'helpers/vue_test_utils_helper';
 import PipelineUrlComponent from '~/pipelines/components/pipelines_list/pipeline_url.vue';
 import UserAvatarLink from '~/vue_shared/components/user_avatar/user_avatar_link.vue';
+import { TRACKING_CATEGORIES } from '~/pipelines/constants';
 import { mockPipeline, mockPipelineBranch, mockPipelineTag } from './mock_data';
 
 const projectPath = 'test/test';
 
 describe('Pipeline Url Component', () => {
   let wrapper;
+  let trackingSpy;
 
   const findTableCell = () => wrapper.findByTestId('pipeline-url-table-cell');
   const findPipelineUrlLink = () => wrapper.findByTestId('pipeline-url-link');
@@ -14,6 +17,7 @@ describe('Pipeline Url Component', () => {
   const findCommitShortSha = () => wrapper.findByTestId('commit-short-sha');
   const findCommitIcon = () => wrapper.findByTestId('commit-icon');
   const findCommitIconType = () => wrapper.findByTestId('commit-icon-type');
+  const findCommitRefName = () => wrapper.findByTestId('commit-ref-name');
 
   const findCommitTitleContainer = () => wrapper.findByTestId('commit-title-container');
   const findCommitTitle = (commitWrapper) => commitWrapper.find('[data-testid="commit-title"]');
@@ -31,7 +35,6 @@ describe('Pipeline Url Component', () => {
 
   afterEach(() => {
     wrapper.destroy();
-    wrapper = null;
   });
 
   it('should render pipeline url table cell', () => {
@@ -49,7 +52,7 @@ describe('Pipeline Url Component', () => {
   });
 
   it('should render the commit title, commit reference and commit-short-sha', () => {
-    createComponent({}, true);
+    createComponent();
 
     const commitWrapper = findCommitTitleContainer();
 
@@ -83,7 +86,7 @@ describe('Pipeline Url Component', () => {
   });
 
   it('should render commit icon tooltip', () => {
-    createComponent({}, true);
+    createComponent();
 
     expect(findCommitIcon().attributes('title')).toBe('Commit');
   });
@@ -94,8 +97,68 @@ describe('Pipeline Url Component', () => {
     ${mockPipelineBranch()} | ${'Branch'}
     ${mockPipeline()}       | ${'Merge Request'}
   `('should render tooltip $expectedTitle for commit icon type', ({ pipeline, expectedTitle }) => {
-    createComponent(pipeline, true);
+    createComponent(pipeline);
 
     expect(findCommitIconType().attributes('title')).toBe(expectedTitle);
   });
+
+  describe('tracking', () => {
+    beforeEach(() => {
+      trackingSpy = mockTracking(undefined, wrapper.element, jest.spyOn);
+    });
+
+    afterEach(() => {
+      unmockTracking();
+    });
+
+    it('tracks pipeline id click', () => {
+      createComponent();
+
+      findPipelineUrlLink().vm.$emit('click');
+
+      expect(trackingSpy).toHaveBeenCalledWith(undefined, 'click_pipeline_id', {
+        label: TRACKING_CATEGORIES.index,
+      });
+    });
+
+    it('tracks merge request ref click', () => {
+      createComponent();
+
+      findRefName().vm.$emit('click');
+
+      expect(trackingSpy).toHaveBeenCalledWith(undefined, 'click_mr_ref', {
+        label: TRACKING_CATEGORIES.index,
+      });
+    });
+
+    it('tracks commit ref name click', () => {
+      createComponent(mockPipelineBranch());
+
+      findCommitRefName().vm.$emit('click');
+
+      expect(trackingSpy).toHaveBeenCalledWith(undefined, 'click_commit_name', {
+        label: TRACKING_CATEGORIES.index,
+      });
+    });
+
+    it('tracks commit title click', () => {
+      createComponent(mockPipelineBranch());
+
+      findCommitTitle(findCommitTitleContainer()).vm.$emit('click');
+
+      expect(trackingSpy).toHaveBeenCalledWith(undefined, 'click_commit_title', {
+        label: TRACKING_CATEGORIES.index,
+      });
+    });
+
+    it('tracks commit short sha click', () => {
+      createComponent(mockPipelineBranch());
+
+      findCommitShortSha().vm.$emit('click');
+
+      expect(trackingSpy).toHaveBeenCalledWith(undefined, 'click_commit_sha', {
+        label: TRACKING_CATEGORIES.index,
+      });
+    });
+  });
 });
diff --git a/spec/frontend/pipelines/pipelines_actions_spec.js b/spec/frontend/pipelines/pipelines_actions_spec.js
index 9b2ee6b8278..9a2126be1c5 100644
--- a/spec/frontend/pipelines/pipelines_actions_spec.js
+++ b/spec/frontend/pipelines/pipelines_actions_spec.js
@@ -2,6 +2,7 @@ import { GlDropdown, GlDropdownItem } from '@gitlab/ui';
 import { shallowMount } from '@vue/test-utils';
 import MockAdapter from 'axios-mock-adapter';
 import { nextTick } from 'vue';
+import { mockTracking, unmockTracking } from 'helpers/tracking_helper';
 import waitForPromises from 'helpers/wait_for_promises';
 import { TEST_HOST } from 'spec/test_constants';
 import createFlash from '~/flash';
@@ -9,6 +10,7 @@ import axios from '~/lib/utils/axios_utils';
 import { confirmAction } from '~/lib/utils/confirm_via_gl_modal/confirm_via_gl_modal';
 import PipelinesManualActions from '~/pipelines/components/pipelines_list/pipelines_manual_actions.vue';
 import GlCountdown from '~/vue_shared/components/gl_countdown.vue';
+import { TRACKING_CATEGORIES } from '~/pipelines/constants';
 
 jest.mock('~/flash');
 jest.mock('~/lib/utils/confirm_via_gl_modal/confirm_via_gl_modal', () => {
@@ -96,6 +98,22 @@ describe('Pipelines Actions dropdown', () => {
         expect(createFlash).toHaveBeenCalledTimes(1);
       });
     });
+
+    describe('tracking', () => {
+      afterEach(() => {
+        unmockTracking();
+      });
+
+      it('tracks manual actions click', () => {
+        const trackingSpy = mockTracking(undefined, wrapper.element, jest.spyOn);
+
+        findDropdown().vm.$emit('shown');
+
+        expect(trackingSpy).toHaveBeenCalledWith(undefined, 'click_manual_actions', {
+          label: TRACKING_CATEGORIES.index,
+        });
+      });
+    });
   });
 
   describe('scheduled jobs', () => {
diff --git a/spec/frontend/pipelines/pipelines_table_spec.js b/spec/frontend/pipelines/pipelines_table_spec.js
index 46c0563f3c0..53496c75123 100644
--- a/spec/frontend/pipelines/pipelines_table_spec.js
+++ b/spec/frontend/pipelines/pipelines_table_spec.js
@@ -2,6 +2,7 @@ import '~/commons';
 import { GlTableLite } from '@gitlab/ui';
 import { mount } from '@vue/test-utils';
 import fixture from 'test_fixtures/pipelines/pipelines.json';
+import { mockTracking, unmockTracking } from 'helpers/tracking_helper';
 import { extendedWrapper } from 'helpers/vue_test_utils_helper';
 import PipelineMiniGraph from '~/pipelines/components/pipeline_mini_graph/pipeline_mini_graph.vue';
 import PipelineOperations from '~/pipelines/components/pipelines_list/pipeline_operations.vue';
@@ -13,6 +14,7 @@ import {
   PipelineKeyOptions,
   BUTTON_TOOLTIP_RETRY,
   BUTTON_TOOLTIP_CANCEL,
+  TRACKING_CATEGORIES,
 } from '~/pipelines/constants';
 
 import eventHub from '~/pipelines/event_hub';
@@ -23,6 +25,7 @@ jest.mock('~/pipelines/event_hub');
 describe('Pipelines Table', () => {
   let pipeline;
   let wrapper;
+  let trackingSpy;
 
   const defaultProps = {
     pipelines: [],
@@ -69,6 +72,7 @@ describe('Pipelines Table', () => {
 
   afterEach(() => {
     wrapper.destroy();
+
     wrapper = null;
   });
 
@@ -96,10 +100,6 @@ describe('Pipelines Table', () => {
       it('should render a status badge', () => {
         expect(findStatusBadge().exists()).toBe(true);
       });
-
-      it('should render status badge with correct path', () => {
-        expect(findStatusBadge().attributes('href')).toBe(pipeline.path);
-      });
     });
 
     describe('pipeline cell', () => {
@@ -167,5 +167,39 @@ describe('Pipelines Table', () => {
         expect(findTriggerer().exists()).toBe(true);
       });
     });
+
+    describe('tracking', () => {
+      beforeEach(() => {
+        trackingSpy = mockTracking(undefined, wrapper.element, jest.spyOn);
+      });
+
+      afterEach(() => {
+        unmockTracking();
+      });
+
+      it('tracks status badge click', () => {
+        findStatusBadge().vm.$emit('ciStatusBadgeClick');
+
+        expect(trackingSpy).toHaveBeenCalledWith(undefined, 'click_ci_status_badge', {
+          label: TRACKING_CATEGORIES.index,
+        });
+      });
+
+      it('tracks retry pipeline button click', () => {
+        findRetryBtn().vm.$emit('click');
+
+        expect(trackingSpy).toHaveBeenCalledWith(undefined, 'click_retry_button', {
+          label: TRACKING_CATEGORIES.index,
+        });
+      });
+
+      it('tracks cancel pipeline button click', () => {
+        findCancelBtn().vm.$emit('click');
+
+        expect(trackingSpy).toHaveBeenCalledWith(undefined, 'click_cancel_button', {
+          label: TRACKING_CATEGORIES.index,
+        });
+      });
+    });
   });
 });
diff --git a/spec/frontend/vue_shared/components/ci_badge_link_spec.js b/spec/frontend/vue_shared/components/ci_badge_link_spec.js
index a943d931f67..27b6718fb8e 100644
--- a/spec/frontend/vue_shared/components/ci_badge_link_spec.js
+++ b/spec/frontend/vue_shared/components/ci_badge_link_spec.js
@@ -1,6 +1,11 @@
 import { shallowMount } from '@vue/test-utils';
 import CiBadge from '~/vue_shared/components/ci_badge_link.vue';
 import CiIcon from '~/vue_shared/components/ci_icon.vue';
+import { visitUrl } from '~/lib/utils/url_utility';
+
+jest.mock('~/lib/utils/url_utility', () => ({
+  visitUrl: jest.fn(),
+}));
 
 describe('CI Badge Link Component', () => {
   let wrapper;
@@ -79,17 +84,20 @@ describe('CI Badge Link Component', () => {
 
   afterEach(() => {
     wrapper.destroy();
-    wrapper = null;
   });
 
-  it.each(Object.keys(statuses))('should render badge for status: %s', (status) => {
+  it.each(Object.keys(statuses))('should render badge for status: %s', async (status) => {
     createComponent({ status: statuses[status] });
 
-    expect(wrapper.attributes('href')).toBe(statuses[status].details_path);
+    expect(wrapper.attributes('href')).toBe();
     expect(wrapper.text()).toBe(statuses[status].text);
     expect(wrapper.classes()).toContain('ci-status');
     expect(wrapper.classes()).toContain(`ci-${statuses[status].group}`);
     expect(findIcon().exists()).toBe(true);
+
+    await wrapper.trigger('click');
+
+    expect(visitUrl).toHaveBeenCalledWith(statuses[status].details_path);
   });
 
   it('should not render label', () => {
@@ -97,4 +105,12 @@ describe('CI Badge Link Component', () => {
 
     expect(wrapper.text()).toBe('');
   });
+
+  it('should emit ciStatusBadgeClick event', async () => {
+    createComponent({ status: statuses.success });
+
+    await wrapper.trigger('click');
+
+    expect(wrapper.emitted('ciStatusBadgeClick')).toEqual([[]]);
+  });
 });
diff --git a/spec/helpers/nav/top_nav_helper_spec.rb b/spec/helpers/nav/top_nav_helper_spec.rb
index 38f152acd79..dc8f062ded8 100644
--- a/spec/helpers/nav/top_nav_helper_spec.rb
+++ b/spec/helpers/nav/top_nav_helper_spec.rb
@@ -52,6 +52,9 @@ RSpec.describe Nav::TopNavHelper do
 
     context 'when current_user is nil (anonymous)' do
       it 'has expected :primary' do
+        expected_header = ::Gitlab::Nav::TopNavMenuHeader.build(
+          title: 'Explore'
+        )
         expected_primary = [
           { href: '/explore', icon: 'project', id: 'project', title: 'Projects' },
           { href: '/explore/groups', icon: 'group', id: 'groups', title: 'Groups' },
@@ -60,7 +63,7 @@ RSpec.describe Nav::TopNavHelper do
           ::Gitlab::Nav::TopNavMenuItem.build(**item)
         end
 
-        expect(subject[:primary]).to eq(expected_primary)
+        expect(subject[:primary]).to eq([expected_header, *expected_primary])
       end
 
       it 'has expected :shortcuts' do
@@ -117,6 +120,9 @@ RSpec.describe Nav::TopNavHelper do
         let(:projects_view) { subject[:views][:projects] }
 
         it 'has expected :primary' do
+          expected_header = ::Gitlab::Nav::TopNavMenuHeader.build(
+            title: 'Switch to'
+          )
           expected_primary = ::Gitlab::Nav::TopNavMenuItem.build(
             css_class: 'qa-projects-dropdown',
             data: {
@@ -128,7 +134,7 @@ RSpec.describe Nav::TopNavHelper do
             title: 'Projects',
             view: 'projects'
           )
-          expect(subject[:primary]).to eq([expected_primary])
+          expect(subject[:primary]).to eq([expected_header, expected_primary])
         end
 
         it 'has expected :shortcuts' do
@@ -253,6 +259,9 @@ RSpec.describe Nav::TopNavHelper do
         let(:groups_view) { subject[:views][:groups] }
 
         it 'has expected :primary' do
+          expected_header = ::Gitlab::Nav::TopNavMenuHeader.build(
+            title: 'Switch to'
+          )
           expected_primary = ::Gitlab::Nav::TopNavMenuItem.build(
             css_class: 'qa-groups-dropdown',
             data: {
@@ -264,7 +273,7 @@ RSpec.describe Nav::TopNavHelper do
             title: 'Groups',
             view: 'groups'
           )
-          expect(subject[:primary]).to eq([expected_primary])
+          expect(subject[:primary]).to eq([expected_header, expected_primary])
         end
 
         it 'has expected :shortcuts' do
@@ -376,6 +385,9 @@ RSpec.describe Nav::TopNavHelper do
         let(:with_milestones) { true }
 
         it 'has expected :primary' do
+          expected_header = ::Gitlab::Nav::TopNavMenuHeader.build(
+            title: 'Explore'
+          )
           expected_primary = ::Gitlab::Nav::TopNavMenuItem.build(
             data: {
               qa_selector: 'milestones_link',
@@ -386,7 +398,7 @@ RSpec.describe Nav::TopNavHelper do
             id: 'milestones',
             title: 'Milestones'
           )
-          expect(subject[:primary]).to eq([expected_primary])
+          expect(subject[:primary]).to eq([expected_header, expected_primary])
         end
 
         it 'has expected :shortcuts' do
@@ -404,6 +416,9 @@ RSpec.describe Nav::TopNavHelper do
         let(:with_snippets) { true }
 
         it 'has expected :primary' do
+          expected_header = ::Gitlab::Nav::TopNavMenuHeader.build(
+            title: 'Explore'
+          )
           expected_primary = ::Gitlab::Nav::TopNavMenuItem.build(
             data: {
               qa_selector: 'snippets_link',
@@ -414,7 +429,7 @@ RSpec.describe Nav::TopNavHelper do
             id: 'snippets',
             title: 'Snippets'
           )
-          expect(subject[:primary]).to eq([expected_primary])
+          expect(subject[:primary]).to eq([expected_header, expected_primary])
         end
 
         it 'has expected :shortcuts' do
@@ -432,6 +447,9 @@ RSpec.describe Nav::TopNavHelper do
         let(:with_activity) { true }
 
         it 'has expected :primary' do
+          expected_header = ::Gitlab::Nav::TopNavMenuHeader.build(
+            title: 'Explore'
+          )
           expected_primary = ::Gitlab::Nav::TopNavMenuItem.build(
             data: {
               qa_selector: 'activity_link',
@@ -442,7 +460,7 @@ RSpec.describe Nav::TopNavHelper do
             id: 'activity',
             title: 'Activity'
           )
-          expect(subject[:primary]).to eq([expected_primary])
+          expect(subject[:primary]).to eq([expected_header, expected_primary])
         end
 
         it 'has expected :shortcuts' do
diff --git a/spec/helpers/projects/pipeline_helper_spec.rb b/spec/helpers/projects/pipeline_helper_spec.rb
index a7d756a67a1..a70544ace1a 100644
--- a/spec/helpers/projects/pipeline_helper_spec.rb
+++ b/spec/helpers/projects/pipeline_helper_spec.rb
@@ -30,7 +30,7 @@ RSpec.describe Projects::PipelineHelper do
         summary_endpoint: summary_project_pipeline_tests_path(project, pipeline, format: :json),
         suite_endpoint: project_pipeline_test_path(project, pipeline, suite_name: 'suite', format: :json),
         blob_path: project_blob_path(project, pipeline.sha),
-        has_test_report: pipeline.has_reports?(Ci::JobArtifact.of_report_type(:test)),
+        has_test_report: pipeline.complete_and_has_reports?(Ci::JobArtifact.of_report_type(:test)),
         empty_state_image_path: match_asset_path('illustrations/empty-state/empty-test-cases-lg.svg'),
         artifacts_expired_image_path: match_asset_path('illustrations/pipeline.svg'),
         tests_count: pipeline.test_report_summary.total[:count]
diff --git a/spec/lib/gitlab/ci/config/entry/legacy_variables_spec.rb b/spec/lib/gitlab/ci/config/entry/legacy_variables_spec.rb
index 252a2b4eacb..e9edec9a0a4 100644
--- a/spec/lib/gitlab/ci/config/entry/legacy_variables_spec.rb
+++ b/spec/lib/gitlab/ci/config/entry/legacy_variables_spec.rb
@@ -61,8 +61,8 @@ RSpec.describe Gitlab::Ci::Config::Entry::LegacyVariables do
     describe '#value_with_data' do
       it 'returns variable with data' do
         expect(entry.value_with_data).to eq(
-          'VARIABLE_1' => { value: 'value 1', description: nil },
-          'VARIABLE_2' => { value: 'value 2', description: nil }
+          'VARIABLE_1' => { value: 'value 1' },
+          'VARIABLE_2' => { value: 'value 2' }
         )
       end
     end
@@ -125,7 +125,7 @@ RSpec.describe Gitlab::Ci::Config::Entry::LegacyVariables do
         it 'returns variable with data' do
           expect(entry.value_with_data).to eq(
             'VARIABLE_1' => { value: 'value 1', description: 'variable 1' },
-            'VARIABLE_2' => { value: 'value 2', description: nil }
+            'VARIABLE_2' => { value: 'value 2' }
           )
         end
       end
diff --git a/spec/lib/gitlab/ci/config/entry/variable_spec.rb b/spec/lib/gitlab/ci/config/entry/variable_spec.rb
index ebc4e8f9984..744a89d4509 100644
--- a/spec/lib/gitlab/ci/config/entry/variable_spec.rb
+++ b/spec/lib/gitlab/ci/config/entry/variable_spec.rb
@@ -204,7 +204,7 @@ RSpec.describe Gitlab::Ci::Config::Entry::Variable do
         describe '#value_with_data' do
           subject(:value_with_data) { entry.value_with_data }
 
-          it { is_expected.to eq(value: 'value', description: nil) }
+          it { is_expected.to eq(value: 'value') }
         end
       end
     end
diff --git a/spec/lib/gitlab/ci/config/entry/variables_spec.rb b/spec/lib/gitlab/ci/config/entry/variables_spec.rb
index 055975e4311..ad7290d0589 100644
--- a/spec/lib/gitlab/ci/config/entry/variables_spec.rb
+++ b/spec/lib/gitlab/ci/config/entry/variables_spec.rb
@@ -61,8 +61,8 @@ RSpec.describe Gitlab::Ci::Config::Entry::Variables do
     describe '#value_with_data' do
       it 'returns variable with data' do
         expect(entry.value_with_data).to eq(
-          'VARIABLE_1' => { value: 'value 1', description: nil },
-          'VARIABLE_2' => { value: 'value 2', description: nil }
+          'VARIABLE_1' => { value: 'value 1' },
+          'VARIABLE_2' => { value: 'value 2' }
         )
       end
     end
@@ -119,7 +119,7 @@ RSpec.describe Gitlab::Ci::Config::Entry::Variables do
         it 'returns variable with data' do
           expect(entry.value_with_data).to eq(
             'VARIABLE_1' => { value: 'value 1', description: 'variable 1' },
-            'VARIABLE_2' => { value: 'value 2', description: nil }
+            'VARIABLE_2' => { value: 'value 2' }
           )
         end
       end
diff --git a/spec/lib/gitlab/ci/pipeline/chain/assign_partition_spec.rb b/spec/lib/gitlab/ci/pipeline/chain/assign_partition_spec.rb
new file mode 100644
index 00000000000..3a8abb69850
--- /dev/null
+++ b/spec/lib/gitlab/ci/pipeline/chain/assign_partition_spec.rb
@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Ci::Pipeline::Chain::AssignPartition do
+  let_it_be(:project) { create(:project) }
+  let_it_be(:user) { create(:user) }
+
+  let(:command) do
+    Gitlab::Ci::Pipeline::Chain::Command.new(project: project, current_user: user)
+  end
+
+  let(:pipeline) { build(:ci_pipeline, project: project) }
+  let(:step) { described_class.new(pipeline, command) }
+  let(:current_partition_id) { 123 }
+
+  describe '#perform!' do
+    before do
+      stub_const("#{described_class}::DEFAULT_PARTITION_ID", current_partition_id)
+    end
+
+    subject { step.perform! }
+
+    it 'assigns partition_id to pipeline' do
+      expect { subject }.to change(pipeline, :partition_id).to(current_partition_id)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/database/background_migration/batched_migration_spec.rb b/spec/lib/gitlab/database/background_migration/batched_migration_spec.rb
index 9eda2fb9b94..87041db7769 100644
--- a/spec/lib/gitlab/database/background_migration/batched_migration_spec.rb
+++ b/spec/lib/gitlab/database/background_migration/batched_migration_spec.rb
@@ -630,7 +630,7 @@ RSpec.describe Gitlab::Database::BackgroundMigration::BatchedMigration, type: :m
   describe '#progress' do
     subject { migration.progress }
 
-    context 'when the migration is finished' do
+    context 'when the migration is completed' do
       let(:migration) do
         create(:batched_background_migration, :finished, total_tuple_count: 1).tap do |record|
           create(:batched_background_migration_job, :succeeded, batched_migration: record, batch_size: 1)
@@ -642,6 +642,18 @@ RSpec.describe Gitlab::Database::BackgroundMigration::BatchedMigration, type: :m
       end
     end
 
+    context 'when the status is finished' do
+      let(:migration) do
+        create(:batched_background_migration, :finished, total_tuple_count: 100).tap do |record|
+          create(:batched_background_migration_job, :succeeded, batched_migration: record, batch_size: 5)
+        end
+      end
+
+      it 'returns 100' do
+        expect(subject).to be 100
+      end
+    end
+
     context 'when the migration does not have jobs' do
       let(:migration) { create(:batched_background_migration, :active) }
 
diff --git a/spec/lib/gitlab/nav/top_nav_menu_header_spec.rb b/spec/lib/gitlab/nav/top_nav_menu_header_spec.rb
new file mode 100644
index 00000000000..d9da3ba1e46
--- /dev/null
+++ b/spec/lib/gitlab/nav/top_nav_menu_header_spec.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+
+RSpec.describe ::Gitlab::Nav::TopNavMenuHeader do
+  describe '.build' do
+    it 'builds a hash from with the given header' do
+      title = 'Test Header'
+      expected = {
+        title: title,
+        type: :header
+      }
+      expect(described_class.build(title: title)).to eq(expected)
+    end
+  end
+end
diff --git a/spec/lib/gitlab/nav/top_nav_menu_item_spec.rb b/spec/lib/gitlab/nav/top_nav_menu_item_spec.rb
index 7d187e1fd2f..d1d6ac80c40 100644
--- a/spec/lib/gitlab/nav/top_nav_menu_item_spec.rb
+++ b/spec/lib/gitlab/nav/top_nav_menu_item_spec.rb
@@ -17,7 +17,7 @@ RSpec.describe ::Gitlab::Nav::TopNavMenuItem do
         emoji: 'smile'
       }
 
-      expect(described_class.build(**item)).to eq(item)
+      expect(described_class.build(**item)).to eq(item.merge(type: :item))
     end
   end
 end
diff --git a/spec/models/ci/pipeline_spec.rb b/spec/models/ci/pipeline_spec.rb
index 84ca8ac47fe..48c37713430 100644
--- a/spec/models/ci/pipeline_spec.rb
+++ b/spec/models/ci/pipeline_spec.rb
@@ -4211,8 +4211,8 @@ RSpec.describe Ci::Pipeline, :mailer, factory_default: :keep do
     end
   end
 
-  describe '#has_reports?' do
-    subject { pipeline.has_reports?(Ci::JobArtifact.of_report_type(:test)) }
+  describe '#complete_and_has_reports?' do
+    subject { pipeline.complete_and_has_reports?(Ci::JobArtifact.of_report_type(:test)) }
 
     context 'when pipeline has builds with test reports' do
       before do
diff --git a/spec/requests/api/admin/batched_background_migrations_spec.rb b/spec/requests/api/admin/batched_background_migrations_spec.rb
index 8763089488d..4081de22e3c 100644
--- a/spec/requests/api/admin/batched_background_migrations_spec.rb
+++ b/spec/requests/api/admin/batched_background_migrations_spec.rb
@@ -75,4 +75,56 @@ RSpec.describe API::Admin::BatchedBackgroundMigrations do
       end
     end
   end
+
+  describe 'PUT /admin/batched_background_migrations/:id/resume' do
+    let!(:migration) { create(:batched_background_migration, :paused) }
+    let(:database) { :main }
+
+    subject(:resume) do
+      put api("/admin/batched_background_migrations/#{migration.id}/resume", admin), params: { database: database }
+    end
+
+    it 'pauses the batched background migration' do
+      resume
+
+      aggregate_failures "testing response" do
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(json_response['id']).to eq(migration.id)
+        expect(json_response['status']).to eq('active')
+      end
+    end
+
+    context 'when the batched background migration does not exist' do
+      let(:params) { { database: database } }
+
+      it 'returns 404' do
+        put api("/admin/batched_background_migrations/#{non_existing_record_id}/resume", admin), params: params
+
+        expect(response).to have_gitlab_http_status(:not_found)
+      end
+    end
+
+    context 'when multiple database is enabled' do
+      let(:ci_model) { Ci::ApplicationRecord }
+      let(:database) { :ci }
+
+      before do
+        skip_if_multiple_databases_not_setup
+      end
+
+      it 'uses the correct connection' do
+        expect(Gitlab::Database::SharedModel).to receive(:using_connection).with(ci_model.connection).and_yield
+
+        resume
+      end
+    end
+
+    context 'when authenticated as a non-admin user' do
+      it 'returns 403' do
+        put api("/admin/batched_background_migrations/#{migration.id}/resume", unauthorized_user)
+
+        expect(response).to have_gitlab_http_status(:forbidden)
+      end
+    end
+  end
 end
diff --git a/spec/services/ci/create_pipeline_service/partitioning_spec.rb b/spec/services/ci/create_pipeline_service/partitioning_spec.rb
new file mode 100644
index 00000000000..43ac63a8b94
--- /dev/null
+++ b/spec/services/ci/create_pipeline_service/partitioning_spec.rb
@@ -0,0 +1,78 @@
+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe Ci::CreatePipelineService, :yaml_processor_feature_flag_corectness, :aggregate_failures do
+  let_it_be(:project) { create(:project, :repository) }
+  let_it_be(:user)    { project.first_owner }
+
+  let(:service) { described_class.new(project, user, { ref: 'master' }) }
+  let(:config) do
+    <<-YAML
+    stages:
+      - build
+      - test
+      - deploy
+
+    build:
+      stage: build
+      script: make build
+
+    test:
+      stage: test
+      trigger:
+        include: child.yml
+
+    deploy:
+      stage: deploy
+      script: make deploy
+      environment: review/$CI_JOB_NAME
+    YAML
+  end
+
+  let(:pipeline) { service.execute(:push).payload }
+  let(:current_partition_id) { 123 }
+
+  before do
+    stub_ci_pipeline_yaml_file(config)
+    stub_const(
+      'Gitlab::Ci::Pipeline::Chain::AssignPartition::DEFAULT_PARTITION_ID',
+      current_partition_id)
+  end
+
+  it 'assigns partition_id to pipeline' do
+    expect(pipeline).to be_created_successfully
+    expect(pipeline.partition_id).to eq(current_partition_id)
+  end
+
+  it 'assigns partition_id to stages' do
+    stage_partition_ids = pipeline.stages.map(&:partition_id).uniq
+
+    expect(stage_partition_ids).to eq([current_partition_id])
+  end
+
+  it 'assigns partition_id to processables' do
+    processables_partition_ids = pipeline.processables.map(&:partition_id).uniq
+
+    expect(processables_partition_ids).to eq([current_partition_id])
+  end
+
+  it 'assigns partition_id to metadata' do
+    metadata_partition_ids = pipeline.processables.map { |job| job.metadata.partition_id }.uniq
+
+    expect(metadata_partition_ids).to eq([current_partition_id])
+  end
+
+  it 'correctly assigns partition and environment' do
+    metadata = find_metadata('deploy')
+
+    expect(metadata.partition_id).to eq(current_partition_id)
+    expect(metadata.expanded_environment_name).to eq('review/deploy')
+  end
+
+  def find_metadata(name)
+    pipeline
+      .processables
+      .find { |job| job.name == name }
+      .metadata
+  end
+end
diff --git a/spec/services/ci/list_config_variables_service_spec.rb b/spec/services/ci/list_config_variables_service_spec.rb
index 1735f4cfc97..4953b18bfcc 100644
--- a/spec/services/ci/list_config_variables_service_spec.rb
+++ b/spec/services/ci/list_config_variables_service_spec.rb
@@ -40,8 +40,8 @@ RSpec.describe Ci::ListConfigVariablesService, :use_clean_rails_memory_store_cac
     it 'returns variable list' do
       expect(subject['KEY1']).to eq({ value: 'val 1', description: 'description 1' })
       expect(subject['KEY2']).to eq({ value: 'val 2', description: '' })
-      expect(subject['KEY3']).to eq({ value: 'val 3', description: nil })
-      expect(subject['KEY4']).to eq({ value: 'val 4', description: nil })
+      expect(subject['KEY3']).to eq({ value: 'val 3' })
+      expect(subject['KEY4']).to eq({ value: 'val 4' })
     end
   end
 
diff --git a/spec/services/ci/pipelines/add_job_service_spec.rb b/spec/services/ci/pipelines/add_job_service_spec.rb
index 560724a1c6a..e735b2752d9 100644
--- a/spec/services/ci/pipelines/add_job_service_spec.rb
+++ b/spec/services/ci/pipelines/add_job_service_spec.rb
@@ -34,6 +34,14 @@ RSpec.describe Ci::Pipelines::AddJobService do
       ).and change { job.metadata.project }.to(pipeline.project)
     end
 
+    it 'assigns partition_id to job and metadata' do
+      pipeline.partition_id = 123
+
+      expect { execute }
+        .to change(job, :partition_id).to(pipeline.partition_id)
+        .and change { job.metadata.partition_id }.to(pipeline.partition_id)
+    end
+
     it 'returns a service response with the job as payload' do
       expect(execute).to be_success
       expect(execute.payload[:job]).to eq(job)
diff --git a/workhorse/internal/upload/destination/objectstore/uploader.go b/workhorse/internal/upload/destination/objectstore/uploader.go
index aedfbe55ead..43e573872ee 100644
--- a/workhorse/internal/upload/destination/objectstore/uploader.go
+++ b/workhorse/internal/upload/destination/objectstore/uploader.go
@@ -80,13 +80,13 @@ func (u *uploader) Consume(outerCtx context.Context, reader io.Reader, deadline
 
 	cr := &countReader{r: reader}
 	if err := u.strategy.Upload(uploadCtx, cr); err != nil {
-		return cr.n, err
+		return 0, err
 	}
 
 	if u.checkETag {
 		if err := compareMD5(hexString(hasher), u.strategy.ETag()); err != nil {
 			log.ContextLogger(uploadCtx).WithError(err).Error("error comparing MD5 checksum")
-			return cr.n, err
+			return 0, err
 		}
 	}