From eeb25534bae1021f5b7940138ee56dea8fc79949 Mon Sep 17 00:00:00 2001
From: GitLab Bot <gitlab-bot@gitlab.com>
Date: Wed, 17 May 2023 09:10:09 +0000
Subject: Add latest changes from gitlab-org/gitlab@master

---
 .../rspec/avoid_conditional_statements.yml         |   1 -
 .../boards/components/board_content.vue            |   2 +-
 .../javascripts/graphql_shared/issuable_client.js  |  10 +
 .../components/packages_cleanup_policy_form.vue    |   2 +-
 .../permissions/components/settings_panel.vue      |  10 +-
 .../repository/components/fork_info.vue            |   2 +-
 .../work_items/components/notes/system_note.vue    | 107 +------
 .../components/work_item_description.vue           |   4 +-
 .../work_items/components/work_item_notes.vue      |   6 +-
 .../notes/create_work_item_note.mutation.graphql   |   2 +-
 .../notes/update_work_item_note.mutation.graphql   |   2 +-
 .../work_item_discussion_note.fragment.graphql     |   2 +-
 .../graphql/notes/work_item_note.fragment.graphql  |   7 +
 .../work_item_note_updated.subscription.graphql    |   2 +-
 .../notes/work_item_notes_by_iid.query.graphql     |   2 +-
 .../mixins/description_version_history.js          |  14 +
 .../javascripts/work_items/notes/collapse_utils.js |  92 ++++++
 app/views/shared/projects/_project.html.haml       |   2 +-
 .../16_0/16-0-source-code-approvals-endpoint.yml   |  30 ++
 doc/api/merge_request_approvals.md                 |  14 +
 doc/api/search_admin.md                            | 125 ++++++++
 doc/update/removals.md                             |  10 +
 doc/user/group/epics/index.md                      |   7 +
 doc/user/project/issues/index.md                   |   7 +
 spec/features/snippets/explore_spec.rb             |  20 +-
 .../boards/components/board_content_spec.js        |  24 ++
 .../components/notes/system_note_spec.js           |  96 +-----
 .../components/notes/work_item_add_note_spec.js    |   2 +-
 .../work_items/components/work_item_labels_spec.js |   2 +-
 spec/frontend/work_items/mock_data.js              | 353 +++++++++++++++++++++
 .../work_items/notes/collapse_utils_spec.js        |  29 ++
 31 files changed, 791 insertions(+), 197 deletions(-)
 create mode 100644 app/assets/javascripts/work_items/mixins/description_version_history.js
 create mode 100644 app/assets/javascripts/work_items/notes/collapse_utils.js
 create mode 100644 data/removals/16_0/16-0-source-code-approvals-endpoint.yml
 create mode 100644 doc/api/search_admin.md
 create mode 100644 spec/frontend/work_items/notes/collapse_utils_spec.js

diff --git a/.rubocop_todo/rspec/avoid_conditional_statements.yml b/.rubocop_todo/rspec/avoid_conditional_statements.yml
index 4817708667a..4a4ba87eab3 100644
--- a/.rubocop_todo/rspec/avoid_conditional_statements.yml
+++ b/.rubocop_todo/rspec/avoid_conditional_statements.yml
@@ -77,7 +77,6 @@ RSpec/AvoidConditionalStatements:
     - 'spec/features/projects/tree/create_file_spec.rb'
     - 'spec/features/projects_spec.rb'
     - 'spec/features/search/user_uses_header_search_field_spec.rb'
-    - 'spec/features/snippets/explore_spec.rb'
     - 'spec/features/usage_stats_consent_spec.rb'
     - 'spec/features/users/login_spec.rb'
     - 'spec/features/users/overview_spec.rb'
diff --git a/app/assets/javascripts/boards/components/board_content.vue b/app/assets/javascripts/boards/components/board_content.vue
index 8304dfef527..9416cbf1884 100644
--- a/app/assets/javascripts/boards/components/board_content.vue
+++ b/app/assets/javascripts/boards/components/board_content.vue
@@ -130,7 +130,7 @@ export default {
         :list="list"
         :filters="filterParams"
         :data-draggable-item-type="$options.draggableItemTypes.list"
-        :class="{ 'gl-xs-display-none!': addColumnFormVisible }"
+        :class="{ 'gl-display-none! gl-sm-display-inline-block!': addColumnFormVisible }"
         @setActiveList="$emit('setActiveList', $event)"
       />
 
diff --git a/app/assets/javascripts/graphql_shared/issuable_client.js b/app/assets/javascripts/graphql_shared/issuable_client.js
index d0b0a485fe6..706bfc9bdac 100644
--- a/app/assets/javascripts/graphql_shared/issuable_client.js
+++ b/app/assets/javascripts/graphql_shared/issuable_client.js
@@ -47,6 +47,16 @@ export const config = {
           },
         },
       },
+      DescriptionVersion: {
+        fields: {
+          startVersionId: {
+            read() {
+              // we need to set this when fetching the diff in the last 10 mins , the starting diff will be the very first one , so need to save it
+              return '';
+            },
+          },
+        },
+      },
       WorkItem: {
         fields: {
           // widgets policy because otherwise the subscriptions invalidate the cache
diff --git a/app/assets/javascripts/packages_and_registries/settings/project/components/packages_cleanup_policy_form.vue b/app/assets/javascripts/packages_and_registries/settings/project/components/packages_cleanup_policy_form.vue
index f95ec4336dc..80df8ef81e6 100644
--- a/app/assets/javascripts/packages_and_registries/settings/project/components/packages_cleanup_policy_form.vue
+++ b/app/assets/javascripts/packages_and_registries/settings/project/components/packages_cleanup_policy_form.vue
@@ -139,7 +139,7 @@ export default {
       :form-options="$options.formOptions.keepNDuplicatedPackageFiles"
       :label="$options.i18n.KEEP_N_DUPLICATED_PACKAGE_FILES_LABEL"
       :description="$options.i18n.KEEP_N_DUPLICATED_PACKAGE_FILES_DESCRIPTION"
-      dropdown-class="gl-md-max-w-50p gl-sm-pr-5"
+      dropdown-class="gl-md-max-w-50p"
       name="keep-n-duplicated-package-files"
       data-testid="keep-n-duplicated-package-files-dropdown"
       @input="onModelChange($event, 'keepNDuplicatedPackageFiles')"
diff --git a/app/assets/javascripts/pages/projects/shared/permissions/components/settings_panel.vue b/app/assets/javascripts/pages/projects/shared/permissions/components/settings_panel.vue
index 64c363dd721..031910b1cdb 100644
--- a/app/assets/javascripts/pages/projects/shared/permissions/components/settings_panel.vue
+++ b/app/assets/javascripts/pages/projects/shared/permissions/components/settings_panel.vue
@@ -552,7 +552,7 @@ export default {
 <template>
   <div>
     <div
-      class="project-visibility-setting gl-border-1 gl-border-solid gl-border-gray-100 gl-py-3 gl-px-7 gl-sm-pr-5 gl-sm-pl-5"
+      class="project-visibility-setting gl-border-1 gl-border-solid gl-border-gray-100 gl-py-3 gl-px-5"
     >
       <project-setting-row
         ref="project-visibility-settings"
@@ -647,7 +647,7 @@ export default {
     </div>
     <div
       :class="{ 'highlight-changes': highlightChangesClass }"
-      class="gl-border-1 gl-border-solid gl-border-t-none gl-border-gray-100 gl-mb-5 gl-py-3 gl-px-7 gl-sm-pr-5 gl-sm-pl-5 gl-bg-gray-10"
+      class="gl-border-1 gl-border-solid gl-border-t-none gl-border-gray-100 gl-mb-5 gl-py-3 gl-px-5 gl-bg-gray-10"
     >
       <project-setting-row
         ref="issues-settings"
@@ -693,7 +693,7 @@ export default {
           name="project[project_feature_attributes][repository_access_level]"
         />
       </project-setting-row>
-      <div class="project-feature-setting-group gl-pl-7 gl-sm-pl-5">
+      <div class="project-feature-setting-group gl-pl-5 gl-md-pl-7">
         <project-setting-row
           ref="merge-request-settings"
           :label="$options.i18n.mergeRequestsLabel"
@@ -875,7 +875,7 @@ export default {
         />
         <div
           v-if="packageRegistryApiForEveryoneEnabledShown"
-          class="project-feature-setting-group gl-pl-7 gl-sm-pl-5 gl-my-3"
+          class="project-feature-setting-group gl-pl-5 gl-md-pl-7 gl-my-3"
         >
           <project-setting-row
             :label="$options.i18n.packageRegistryForEveryoneLabel"
@@ -932,7 +932,7 @@ export default {
       </project-setting-row>
       <div
         v-if="!glFeatures.removeMonitorMetrics"
-        class="project-feature-setting-group gl-pl-7 gl-sm-pl-5"
+        class="project-feature-setting-group gl-pl-5 gl-md-pl-7"
       >
         <project-setting-row
           ref="metrics-visibility-settings"
diff --git a/app/assets/javascripts/repository/components/fork_info.vue b/app/assets/javascripts/repository/components/fork_info.vue
index 1da445a7906..e4a10784bd5 100644
--- a/app/assets/javascripts/repository/components/fork_info.vue
+++ b/app/assets/javascripts/repository/components/fork_info.vue
@@ -314,7 +314,7 @@ export default {
         >
           {{ $options.i18n.inaccessibleProject }}
         </div>
-        <div class="gl-display-flex gl-xs-display-none!">
+        <div class="gl-display-none gl-sm-display-flex">
           <gl-button
             v-if="hasCreateMrButton"
             class="gl-ml-4"
diff --git a/app/assets/javascripts/work_items/components/notes/system_note.vue b/app/assets/javascripts/work_items/components/notes/system_note.vue
index f8dfa1c7f01..534fbbe96ac 100644
--- a/app/assets/javascripts/work_items/components/notes/system_note.vue
+++ b/app/assets/javascripts/work_items/components/notes/system_note.vue
@@ -19,8 +19,7 @@ import { GlButton, GlSkeletonLoader, GlTooltipDirective, GlIcon } from '@gitlab/
 import $ from 'jquery';
 import { renderGFM } from '~/behaviors/markdown/render_gfm';
 import SafeHtml from '~/vue_shared/directives/safe_html';
-import descriptionVersionHistoryMixin from 'ee_else_ce/notes/mixins/description_version_history';
-import axios from '~/lib/utils/axios_utils';
+import descriptionVersionHistoryMixin from 'ee_else_ce/work_items/mixins/description_version_history';
 import { getLocationHash } from '~/lib/utils/url_utility';
 import { getIdFromGraphQLId } from '~/graphql_shared/utils';
 import { __ } from '~/locale';
@@ -28,8 +27,6 @@ import NoteHeader from '~/notes/components/note_header.vue';
 import glFeatureFlagsMixin from '~/vue_shared/mixins/gl_feature_flags_mixin';
 import TimelineEntryItem from '~/vue_shared/components/notes/timeline_entry_item.vue';
 
-const MAX_VISIBLE_COMMIT_LIST_COUNT = 3;
-
 export default {
   i18n: {
     deleteButtonLabel: __('Remove description history'),
@@ -60,15 +57,13 @@ export default {
       showLines: false,
       loadingDiff: false,
       isLoadingDescriptionVersion: false,
+      descriptionVersions: {},
     };
   },
   computed: {
     targetNoteHash() {
       return getLocationHash();
     },
-    descriptionVersions() {
-      return [];
-    },
     noteAnchorId() {
       return `note_${this.noteId}`;
     },
@@ -78,42 +73,22 @@ export default {
     toggleIcon() {
       return this.expanded ? 'chevron-up' : 'chevron-down';
     },
-    // following 2 methods taken from code in `collapseLongCommitList` of notes.js:
     actionTextHtml() {
       return $(this.note.bodyHtml).unwrap().html();
     },
-    hasMoreCommits() {
-      return $(this.note.bodyHtml).filter('ul').children().length > MAX_VISIBLE_COMMIT_LIST_COUNT;
-    },
-    descriptionVersion() {
-      return this.descriptionVersions[this.note.description_version_id];
+    descriptionVersionId() {
+      return getIdFromGraphQLId(this.systemNoteDescriptionVersion?.id);
     },
     noteId() {
       return getIdFromGraphQLId(this.note.id);
     },
+    descriptionVersion() {
+      return this.descriptionVersions[this.descriptionVersionId];
+    },
   },
   mounted() {
     renderGFM(this.$refs['gfm-content']);
   },
-  methods: {
-    fetchDescriptionVersion() {},
-    softDeleteDescriptionVersion() {},
-
-    async toggleDiff() {
-      this.showLines = !this.showLines;
-
-      if (!this.lines.length) {
-        this.loadingDiff = true;
-        const { data } = await axios.get(this.note.outdated_line_change_path);
-
-        this.lines = data.map((l) => ({
-          ...l,
-          rich_text: l.rich_text.replace(/^[+ -]/, ''),
-        }));
-        this.loadingDiff = false;
-      }
-    },
-  },
   safeHtmlConfig: {
     ADD_TAGS: ['use'], // to support icon SVGs
   },
@@ -141,10 +116,7 @@ export default {
           :is-system-note="true"
         >
           <span ref="gfm-content" v-safe-html="actionTextHtml"></span>
-          <template
-            v-if="canSeeDescriptionVersion || note.outdated_line_change_path"
-            #extra-controls
-          >
+          <template v-if="canSeeDescriptionVersion" #extra-controls>
             &middot;
             <gl-button
               v-if="canSeeDescriptionVersion"
@@ -155,36 +127,20 @@ export default {
               @click="toggleDescriptionVersion"
               >{{ __('Compare with previous version') }}</gl-button
             >
-            <gl-button
-              v-if="note.outdated_line_change_path"
-              :icon="showLines ? 'chevron-up' : 'chevron-down'"
-              variant="link"
-              data-testid="outdated-lines-change-btn"
-              class="gl-vertical-align-text-bottom gl-font-sm!"
-              @click="toggleDiff"
-            >
-              {{ __('Compare changes') }}
-            </gl-button>
           </template>
         </note-header>
       </div>
       <div class="note-body">
-        <div
-          v-safe-html="note.bodyHtml"
-          :class="{ 'system-note-commit-list': hasMoreCommits, 'hide-shade': expanded }"
-          class="note-text md"
-        ></div>
-        <div v-if="hasMoreCommits" class="flex-list">
-          <div class="system-note-commit-list-toggler flex-row" @click="expanded = !expanded">
-            <gl-icon :name="toggleIcon" :size="8" class="gl-mr-2" />
-            <span>{{ __('Toggle commit list') }}</span>
-          </div>
-        </div>
-        <div v-if="shouldShowDescriptionVersion" class="description-version pt-2">
+        <div v-if="shouldShowDescriptionVersion" class="description-version gl-pt-3! gl-pl-4">
           <pre v-if="isLoadingDescriptionVersion" class="loading-state">
             <gl-skeleton-loader />
           </pre>
-          <pre v-else v-safe-html="descriptionVersion" class="wrapper mt-2"></pre>
+          <pre
+            v-else
+            v-safe-html="descriptionVersion"
+            data-testid="description-version-diff"
+            class="wrapper gl-mt-3"
+          ></pre>
           <gl-button
             v-if="displayDeleteButton"
             v-gl-tooltip
@@ -198,39 +154,6 @@ export default {
             @click="deleteDescriptionVersion"
           />
         </div>
-        <div
-          v-if="lines.length && showLines"
-          class="diff-content outdated-lines-wrapper gl-border-solid gl-border-1 gl-border-gray-200 gl-mt-4 gl-rounded-small gl-overflow-hidden"
-        >
-          <table
-            :class="$options.userColorSchemeClass"
-            class="code js-syntax-highlight"
-            data-testid="outdated-lines"
-          >
-            <tr v-for="line in lines" v-once :key="line.line_code" class="line_holder">
-              <td
-                :class="line.type"
-                class="diff-line-num old_line gl-border-bottom-0! gl-border-top-0! gl-border-0! gl-rounded-0!"
-              >
-                {{ line.old_line }}
-              </td>
-              <td
-                :class="line.type"
-                class="diff-line-num new_line gl-border-bottom-0! gl-border-top-0!"
-              >
-                {{ line.new_line }}
-              </td>
-              <td
-                :class="line.type"
-                class="line_content gl-display-table-cell! gl-border-0! gl-rounded-0!"
-                v-html="line.rich_text /* eslint-disable-line vue/no-v-html */"
-              ></td>
-            </tr>
-          </table>
-        </div>
-        <div v-else-if="showLines" class="mt-4">
-          <gl-skeleton-loader />
-        </div>
       </div>
     </div>
   </timeline-entry-item>
diff --git a/app/assets/javascripts/work_items/components/work_item_description.vue b/app/assets/javascripts/work_items/components/work_item_description.vue
index a4cbc430b84..279acc98cd4 100644
--- a/app/assets/javascripts/work_items/components/work_item_description.vue
+++ b/app/assets/javascripts/work_items/components/work_item_description.vue
@@ -229,13 +229,13 @@ export default {
   <div>
     <gl-form-group
       v-if="isEditing"
-      class="gl-mb-5 gl-border-t gl-pt-6"
+      class="gl-mb-5 gl-border-t gl-pt-6 common-note-form"
       :label="__('Description')"
       label-for="work-item-description"
     >
       <markdown-editor
         v-if="glFeatures.workItemsMvc"
-        class="gl-my-3 common-note-form"
+        class="gl-my-5"
         :value="descriptionText"
         :render-markdown-path="markdownPreviewPath"
         :markdown-docs-path="$options.markdownDocsPath"
diff --git a/app/assets/javascripts/work_items/components/work_item_notes.vue b/app/assets/javascripts/work_items/components/work_item_notes.vue
index 092b90a5731..8fc460294e6 100644
--- a/app/assets/javascripts/work_items/components/work_item_notes.vue
+++ b/app/assets/javascripts/work_items/components/work_item_notes.vue
@@ -21,6 +21,7 @@ import {
   updateCacheAfterDeletingNote,
 } from '~/work_items/graphql/cache_utils';
 import { getLocationHash } from '~/lib/utils/url_utility';
+import { collapseSystemNotes } from '~/work_items/notes/collapse_utils';
 import WorkItemDiscussion from '~/work_items/components/notes/work_item_discussion.vue';
 import WorkItemHistoryOnlyFilterNote from '~/work_items/components/notes/work_item_history_only_filter_note.vue';
 import workItemNoteCreatedSubscription from '~/work_items/graphql/notes/work_item_note_created.subscription.graphql';
@@ -128,7 +129,9 @@ export default {
     notesArray() {
       const notes = this.workItemNotes?.nodes || [];
 
-      const visibleNotes = notes.filter((note) => {
+      let visibleNotes = collapseSystemNotes(notes);
+
+      visibleNotes = visibleNotes.filter((note) => {
         const isSystemNote = this.isSystemNote(note);
 
         if (this.discussionFilter === WORK_ITEM_NOTES_FILTER_ONLY_COMMENTS && isSystemNote) {
@@ -145,6 +148,7 @@ export default {
       if (this.sortOrder === DESC) {
         return [...visibleNotes].reverse();
       }
+
       return visibleNotes;
     },
     commentsDisabled() {
diff --git a/app/assets/javascripts/work_items/graphql/notes/create_work_item_note.mutation.graphql b/app/assets/javascripts/work_items/graphql/notes/create_work_item_note.mutation.graphql
index 5050aa7cbda..3286895215f 100644
--- a/app/assets/javascripts/work_items/graphql/notes/create_work_item_note.mutation.graphql
+++ b/app/assets/javascripts/work_items/graphql/notes/create_work_item_note.mutation.graphql
@@ -1,4 +1,4 @@
-#import "./work_item_note.fragment.graphql"
+#import "ee_else_ce/work_items/graphql/notes/work_item_note.fragment.graphql"
 
 mutation createWorkItemNote($input: CreateNoteInput!) {
   createNote(input: $input) {
diff --git a/app/assets/javascripts/work_items/graphql/notes/update_work_item_note.mutation.graphql b/app/assets/javascripts/work_items/graphql/notes/update_work_item_note.mutation.graphql
index 3da8e7677e4..eb52eb912e7 100644
--- a/app/assets/javascripts/work_items/graphql/notes/update_work_item_note.mutation.graphql
+++ b/app/assets/javascripts/work_items/graphql/notes/update_work_item_note.mutation.graphql
@@ -1,4 +1,4 @@
-#import "./work_item_note.fragment.graphql"
+#import "ee_else_ce/work_items/graphql/notes/work_item_note.fragment.graphql"
 
 mutation updateWorkItemNote($input: UpdateNoteInput!) {
   updateNote(input: $input) {
diff --git a/app/assets/javascripts/work_items/graphql/notes/work_item_discussion_note.fragment.graphql b/app/assets/javascripts/work_items/graphql/notes/work_item_discussion_note.fragment.graphql
index 58561e33e53..635faf27892 100644
--- a/app/assets/javascripts/work_items/graphql/notes/work_item_discussion_note.fragment.graphql
+++ b/app/assets/javascripts/work_items/graphql/notes/work_item_discussion_note.fragment.graphql
@@ -1,5 +1,5 @@
 #import "~/graphql_shared/fragments/user.fragment.graphql"
-#import "./work_item_note.fragment.graphql"
+#import "ee_else_ce/work_items/graphql/notes/work_item_note.fragment.graphql"
 
 fragment WorkItemDiscussionNote on Note {
   id
diff --git a/app/assets/javascripts/work_items/graphql/notes/work_item_note.fragment.graphql b/app/assets/javascripts/work_items/graphql/notes/work_item_note.fragment.graphql
index 93616c39e55..973c6fde474 100644
--- a/app/assets/javascripts/work_items/graphql/notes/work_item_note.fragment.graphql
+++ b/app/assets/javascripts/work_items/graphql/notes/work_item_note.fragment.graphql
@@ -28,4 +28,11 @@ fragment WorkItemNote on Note {
     resolveNote
     repositionNote
   }
+  systemNoteMetadata {
+    id
+    descriptionVersion {
+      id
+      description
+    }
+  }
 }
diff --git a/app/assets/javascripts/work_items/graphql/notes/work_item_note_updated.subscription.graphql b/app/assets/javascripts/work_items/graphql/notes/work_item_note_updated.subscription.graphql
index c68d5f491cf..1a6f4e44ee0 100644
--- a/app/assets/javascripts/work_items/graphql/notes/work_item_note_updated.subscription.graphql
+++ b/app/assets/javascripts/work_items/graphql/notes/work_item_note_updated.subscription.graphql
@@ -1,4 +1,4 @@
-#import "./work_item_note.fragment.graphql"
+#import "ee_else_ce/work_items/graphql/notes/work_item_note.fragment.graphql"
 
 subscription workItemNoteUpdated($noteableId: NoteableID) {
   workItemNoteUpdated(noteableId: $noteableId) {
diff --git a/app/assets/javascripts/work_items/graphql/notes/work_item_notes_by_iid.query.graphql b/app/assets/javascripts/work_items/graphql/notes/work_item_notes_by_iid.query.graphql
index 6b37c68cb43..6022b280d72 100644
--- a/app/assets/javascripts/work_items/graphql/notes/work_item_notes_by_iid.query.graphql
+++ b/app/assets/javascripts/work_items/graphql/notes/work_item_notes_by_iid.query.graphql
@@ -1,5 +1,5 @@
 #import "~/graphql_shared/fragments/page_info.fragment.graphql"
-#import "./work_item_note.fragment.graphql"
+#import "ee_else_ce/work_items/graphql/notes/work_item_note.fragment.graphql"
 
 query workItemNotesByIid($fullPath: ID!, $iid: String, $after: String, $pageSize: Int) {
   workspace: project(fullPath: $fullPath) {
diff --git a/app/assets/javascripts/work_items/mixins/description_version_history.js b/app/assets/javascripts/work_items/mixins/description_version_history.js
new file mode 100644
index 00000000000..d1006e37a70
--- /dev/null
+++ b/app/assets/javascripts/work_items/mixins/description_version_history.js
@@ -0,0 +1,14 @@
+// Placeholder for GitLab FOSS
+// Actual implementation: ee/app/assets/javascripts/notes/mixins/description_version_history.js
+export default {
+  computed: {
+    canSeeDescriptionVersion() {},
+    displayDeleteButton() {},
+    shouldShowDescriptionVersion() {},
+    descriptionVersionToggleIcon() {},
+  },
+  methods: {
+    toggleDescriptionVersion() {},
+    deleteDescriptionVersion() {},
+  },
+};
diff --git a/app/assets/javascripts/work_items/notes/collapse_utils.js b/app/assets/javascripts/work_items/notes/collapse_utils.js
new file mode 100644
index 00000000000..db7b4530e2a
--- /dev/null
+++ b/app/assets/javascripts/work_items/notes/collapse_utils.js
@@ -0,0 +1,92 @@
+import { DESCRIPTION_TYPE, TIME_DIFFERENCE_VALUE } from '~/notes/constants';
+
+/**
+ * Checks the time difference between two notes from their 'created_at' dates
+ * returns an integer
+ */
+export const getTimeDifferenceInMinutes = (noteBeginning, noteEnd) => {
+  const descriptionNoteBegin = new Date(noteBeginning.createdAt);
+  const descriptionNoteEnd = new Date(noteEnd.createdAt);
+  const timeDifferenceMinutes = (descriptionNoteEnd - descriptionNoteBegin) / 1000 / 60;
+
+  return Math.ceil(timeDifferenceMinutes);
+};
+
+/**
+ * Checks if a note is a system note and if the content is description
+ *
+ * @param {Object} note
+ * @returns {Boolean}
+ */
+export const isDescriptionSystemNote = (note) => {
+  return note.system && note.body === DESCRIPTION_TYPE;
+};
+
+/**
+ * Collapses the system notes of a description type, e.g. Changed the description, n minutes ago
+ * the notes will collapse as long as they happen no more than 10 minutes away from each away
+ * in between the notes can be anything, another type of system note
+ * (such as 'changed the weight') or a comment.
+ *
+ * @param {Array} notes
+ * @returns {Array}
+ */
+export const collapseSystemNotes = (notes) => {
+  let lastDescriptionSystemNote = null;
+  let lastDescriptionSystemNoteIndex = -1;
+
+  return notes.reduce((acc, currentNote) => {
+    const note = currentNote.notes.nodes[0];
+    let lastStartVersionId = '';
+
+    if (isDescriptionSystemNote(note)) {
+      // is it the first one?
+      if (!lastDescriptionSystemNote) {
+        lastDescriptionSystemNote = note;
+      } else {
+        const timeDifferenceMinutes = getTimeDifferenceInMinutes(lastDescriptionSystemNote, note);
+
+        // are they less than 10 minutes apart from the same user?
+        if (
+          timeDifferenceMinutes > TIME_DIFFERENCE_VALUE ||
+          note.author.id !== lastDescriptionSystemNote.author.id ||
+          lastDescriptionSystemNote.systemNoteMetadata.descriptionVersion?.deleted
+        ) {
+          // update the previous system note
+          lastDescriptionSystemNote = note;
+        } else {
+          // set the first version to fetch grouped system note versions
+
+          lastStartVersionId = lastDescriptionSystemNote.systemNoteMetadata.descriptionVersion.id;
+
+          // delete the previous one
+          acc.splice(lastDescriptionSystemNoteIndex, 1);
+        }
+      }
+
+      // update the previous system note index
+      lastDescriptionSystemNoteIndex = acc.length;
+
+      acc.push({
+        notes: {
+          nodes: [
+            {
+              ...note,
+              systemNoteMetadata: {
+                ...note.systemNoteMetadata,
+                descriptionVersion: {
+                  ...note.systemNoteMetadata.descriptionVersion,
+                  startVersionId: lastStartVersionId,
+                },
+              },
+            },
+          ],
+        },
+      });
+    } else {
+      acc.push(currentNote);
+    }
+
+    return acc;
+  }, []);
+};
diff --git a/app/views/shared/projects/_project.html.haml b/app/views/shared/projects/_project.html.haml
index 79a33316b1a..bc07c3f4370 100644
--- a/app/views/shared/projects/_project.html.haml
+++ b/app/views/shared/projects/_project.html.haml
@@ -83,7 +83,7 @@
             = _('Updated')
             = updated_tooltip
 
-  .project-cell{ class: "#{css_class} gl-xs-display-none!" }
+  .project-cell{ class: "#{css_class} gl-display-none! gl-sm-display-table-cell!" }
     .project-controls.gl-display-flex.gl-flex-direction-column.gl-align-items-flex-end.gl-w-full{ data: { testid: 'project_controls'} }
       .controls.gl-display-flex.gl-align-items-center.gl-mb-2{ class: "#{css_controls_class} gl-pr-0!" }
         - if show_pipeline_status_icon && last_pipeline.present?
diff --git a/data/removals/16_0/16-0-source-code-approvals-endpoint.yml b/data/removals/16_0/16-0-source-code-approvals-endpoint.yml
new file mode 100644
index 00000000000..786ed39566b
--- /dev/null
+++ b/data/removals/16_0/16-0-source-code-approvals-endpoint.yml
@@ -0,0 +1,30 @@
+# This is a template for announcing a feature removal or other important change.
+#
+# Please refer to the deprecation guidelines to confirm your understanding of GitLab's definitions.
+# https://docs.gitlab.com/ee/development/deprecation_guidelines/#terminology
+#
+# If this is a breaking change, it must happen in a major release.
+#
+# For more information please refer to the handbook documentation here:
+# https://about.gitlab.com/handbook/marketing/blog/release-posts/#deprecations-and-other-planned-breaking-change-announcements
+#
+# Please delete this line and above before submitting your merge request.
+#
+# REQUIRED FIELDS
+#
+- title: "`POST /projects/:id/merge_requests/:merge_request_iid/approvals` removed"  # (required) Clearly explain the change. For example, "The `confidential` field for a `Note` is removed" or "CI/CD job names are limited to 250 characters."
+  announcement_milestone: "12.3"  # (required) The milestone when this feature was deprecated.
+  removal_milestone: "16.0"  # (required) The milestone when this feature is being removed.
+  breaking_change: true  # (required) Change to false if this is not a breaking change.
+  reporter: tlinz  # (required) GitLab username of the person reporting the removal
+  stage: create  # (required) String value of the stage that the feature was created in. e.g., Growth
+  issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/353097  # (required) Link to the deprecation issue in GitLab
+  body: |  # (required) Do not modify this line, instead modify the lines below.
+    The `/approvals` endpoint was [deprecated](https://gitlab.com/gitlab-org/gitlab/-/issues/11132) in GitLab 12.3. To change the approvals required for a merge request via the API, use the `/approval_rules` endpoint described in [Create merge request level rule](https://docs.gitlab.com/ee/api/merge_request_approvals.html#create-merge-request-level-rule).
+#
+# OPTIONAL FIELDS
+#
+  tiers: [Premium, Ultimate] # (optional - may be required in the future) An array of tiers that the feature is available in currently.  e.g., [Free, Silver, Gold, Core, Premium, Ultimate]
+  documentation_url: https://docs.gitlab.com/ee/api/merge_request_approvals.html#create-merge-request-level-rule  # (optional) This is a link to the current documentation page
+  image_url:  # (optional) This is a link to a thumbnail image depicting the feature
+  video_url:  # (optional) Use the youtube thumbnail URL with the structure of https://img.youtube.com/vi/UNIQUEID/hqdefault.jpg
diff --git a/doc/api/merge_request_approvals.md b/doc/api/merge_request_approvals.md
index ccd79c697a0..19179bddb00 100644
--- a/doc/api/merge_request_approvals.md
+++ b/doc/api/merge_request_approvals.md
@@ -596,6 +596,20 @@ Supported attributes:
 }
 ```
 
+<!--- start_remove The following content will be removed on remove_date: '2023-08-17' -->
+
+### Change approval configuration (removed)
+
+> - Endpoint `/approvals` [deprecated](https://gitlab.com/gitlab-org/gitlab/-/issues/11132) in GitLab 12.3.
+> - Endpoint `approvals` [disabled](https://gitlab.com/gitlab-org/gitlab/-/issues/353097) in GitLab 16.0 [with a flag](../administration/feature_flags.md) named `remove_deprecated_approvals`. Disabled by default.
+
+The endpoint `POST /projects/:id/merge_requests/:merge_request_iid/approvals` was
+deprecated in GitLab 12.3, and removed in GitLab 16.0. To change the approvals
+required for a merge request, use the `/approval_rules` endpoint described in
+[Create merge request level rule](#create-merge-request-level-rule) on this page.
+
+<!--- end_remove -->
+
 ### Get the approval state of merge requests
 
 > Moved to GitLab Premium in 13.9.
diff --git a/doc/api/search_admin.md b/doc/api/search_admin.md
new file mode 100644
index 00000000000..9e1aa1a4439
--- /dev/null
+++ b/doc/api/search_admin.md
@@ -0,0 +1,125 @@
+---
+stage: Data Stores
+group: Global Search
+info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
+---
+
+# Search admin API **(PREMIUM SELF)**
+
+> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/120751) in GitLab 16.1
+
+The search admin API returns information about [advanced search migrations](../integration/advanced_search/elasticsearch.md#advanced-search-migrations).
+
+You must have administrator access to use this API.
+
+## List all advanced search migrations
+
+Get a list of all advanced search migrations for the GitLab instance.
+
+```plaintext
+GET /admin/search/migrations
+```
+
+Example request:
+
+```shell
+curl --header "PRIVATE-TOKEN: <your_access_token>" "https://primary.example.com/api/v4/admin/search/migrations"
+```
+
+Example response:
+
+```json
+[
+  {
+    "version": 20230427555555,
+    "name": "BackfillHiddenOnMergeRequests",
+    "started_at": "2023-05-12T01:35:05.469+00:00",
+    "completed_at": "2023-05-12T01:36:06.432+00:00",
+    "completed": true,
+    "obsolete": false,
+    "migration_state": {}
+  },
+  {
+    "version": 20230428500000,
+    "name": "AddSuffixProjectInWikiRid",
+    "started_at": "2023-05-04T18:59:43.542+00:00",
+    "completed_at": "2023-05-04T18:59:43.542+00:00",
+    "completed": false,
+    "obsolete": false,
+    "migration_state": {
+      "pause_indexing": true,
+      "slice": 1,
+      "task_id": null,
+      "max_slices": 5,
+      "retry_attempt": 0
+    }
+  },
+  {
+    "version": 20230503064300,
+    "name": "BackfillProjectPermissionsInBlobsUsingPermutations",
+    "started_at": "2023-05-03T16:04:44.074+00:00",
+    "completed_at": "2023-05-03T16:04:44.074+00:00",
+    "completed": true,
+    "obsolete": false,
+    "migration_state": {
+      "permutation_idx": 8,
+      "documents_remaining": 5,
+      "task_id": "I2_LXc-xQlOeu-KmjYpM8g:172820",
+      "documents_remaining_for_permutation": 0
+    }
+  }
+]
+```
+
+## Get an advanced search migration
+
+Get a single advanced search migration by providing the migration version or name.
+
+```plaintext
+GET /admin/search/mirations/:version_or_name
+```
+
+Parameters:
+
+| Attribute         | Type           | Required | Description                          |
+|-------------------|----------------|----------|--------------------------------------|
+| `version_or_name` | integer/string | Yes      | The version or name of the migration. |
+
+Example request:
+
+```shell
+curl --header "PRIVATE-TOKEN: <your_access_token>" "https://primary.example.com/api/v4/admin/search/mirations/20230503064300"
+curl --header "PRIVATE-TOKEN: <your_access_token>" "https://primary.example.com/api/v4/admin/search/mirations/BackfillProjectPermissionsInBlobsUsingPermutations"
+```
+
+If successful, returns [`200`](rest/index.md#status-codes) and the following
+response attributes:
+
+| Attribute         | Type     | Description                                           |
+|:------------------|:---------|:------------------------------------------------------|
+| `version`         | integer  | Version of the migration.                             |
+| `name`            | string   | Name of the migration.                                |
+| `started_at`      | datetime | Start date for the migration.                         |
+| `completed_at`    | datetime | Completion date for the migration.                    |
+| `completed`       | boolean  | If `true`, the migration is completed.                |
+| `obsolete`        | boolean  | If `true`, the migration has been marked as obsolete. |
+| `migration_state` | object   | Stored migration state.                               |
+
+Example response:
+
+```json
+{
+  "version": 20230503064300,
+  "name": "BackfillProjectPermissionsInBlobsUsingPermutations",
+  "started_at": "2023-05-03T16:04:44.074+00:00",
+  "completed_at": "2023-05-03T16:04:44.074+00:00",
+  "completed": true,
+  "obsolete": false,
+  "migration_state": {
+    "permutation_idx": 8,
+    "documents_remaining": 5,
+    "task_id": "I2_LXc-xQlOeu-KmjYpM8g:172820",
+    "documents_remaining_for_permutation": 0
+  }
+}
+```
diff --git a/doc/update/removals.md b/doc/update/removals.md
index 1673fb6bf49..e371e2f0fb0 100644
--- a/doc/update/removals.md
+++ b/doc/update/removals.md
@@ -804,6 +804,16 @@ The predefined CI/CD variables that start with `CI_BUILD_*` were deprecated in G
 | `CI_BUILD_TOKEN`      | `CI_JOB_TOKEN`          |
 | `CI_BUILD_TRIGGERED`  | `CI_PIPELINE_TRIGGERED` |
 
+### `POST /projects/:id/merge_requests/:merge_request_iid/approvals` removed
+
+<div class="deprecation-notes">
+- Announced in: GitLab <span class="milestone">12.3</span>
+- This is a [breaking change](https://docs.gitlab.com/ee/development/deprecation_guidelines/). Review the details carefully before upgrading.
+- To discuss this change or learn more, see the [deprecation issue](https://gitlab.com/gitlab-org/gitlab/-/issues/353097).
+</div>
+
+The `/approvals` endpoint was [deprecated](https://gitlab.com/gitlab-org/gitlab/-/issues/11132) in GitLab 12.3. To change the approvals required for a merge request via the API, use the `/approval_rules` endpoint described in [Create merge request level rule](https://docs.gitlab.com/ee/api/merge_request_approvals.html#create-merge-request-level-rule).
+
 ### `POST ci/lint` API endpoint removed
 
 <div class="deprecation-notes">
diff --git a/doc/user/group/epics/index.md b/doc/user/group/epics/index.md
index 32454693d71..5d3bac4f895 100644
--- a/doc/user/group/epics/index.md
+++ b/doc/user/group/epics/index.md
@@ -19,6 +19,13 @@ Use epics:
 - To track when the work for the group of issues is targeted to begin and end.
 - To discuss and collaborate on feature ideas and scope at a high level.
 
+<div class="video-fallback">
+  See the video: <a href="https://www.youtube.com/watch?v=kdE-yb6Puuo">GitLab Epics - Setting up your Organization with GitLab</a>.
+</div>
+<figure class="video-container">
+  <iframe src="https://www.youtube-nocookie.com/embed/kdE-yb6Puuo" frameborder="0" allowfullscreen> </iframe>
+</figure>
+
 ## Relationships between epics and issues
 
 The possible relationships between epics and issues are:
diff --git a/doc/user/project/issues/index.md b/doc/user/project/issues/index.md
index 6c9a645d817..a43dd65ed74 100644
--- a/doc/user/project/issues/index.md
+++ b/doc/user/project/issues/index.md
@@ -22,6 +22,13 @@ For more information about using issues, see the GitLab blog post:
 Issues are always associated with a specific project. If you have multiple
 projects in a group, you can view all of the projects' issues at once.
 
+<div class="video-fallback">
+  See the video: <a href="https://www.youtube.com/watch?v=tTE6omrBBZI">Issues - Setting up your Organization with GitLab</a>.
+</div>
+<figure class="video-container">
+  <iframe src="https://www.youtube-nocookie.com/embed/tTE6omrBBZI" frameborder="0" allowfullscreen> </iframe>
+</figure>
+
 <i class="fa fa-youtube-play youtube" aria-hidden="true"></i>
 To learn how the GitLab Strategic Marketing department uses GitLab issues with [labels](../labels.md) and
 [issue boards](../issue_board.md), see the video on
diff --git a/spec/features/snippets/explore_spec.rb b/spec/features/snippets/explore_spec.rb
index ef4b75ac3b4..2e06125963e 100644
--- a/spec/features/snippets/explore_spec.rb
+++ b/spec/features/snippets/explore_spec.rb
@@ -6,16 +6,15 @@ RSpec.describe 'Explore Snippets', feature_category: :source_code_management do
   let!(:public_snippet) { create(:personal_snippet, :public) }
   let!(:internal_snippet) { create(:personal_snippet, :internal) }
   let!(:private_snippet) { create(:personal_snippet, :private) }
-  let(:user) { nil }
-
-  before do
-    sign_in(user) if user
-    visit explore_snippets_path
-  end
 
   context 'User' do
     let(:user) { create(:user) }
 
+    before do
+      sign_in(user)
+      visit explore_snippets_path
+    end
+
     it 'see snippets that are not private' do
       expect(page).to have_content(public_snippet.title)
       expect(page).to have_content(internal_snippet.title)
@@ -31,6 +30,11 @@ RSpec.describe 'Explore Snippets', feature_category: :source_code_management do
   context 'External user' do
     let(:user) { create(:user, :external) }
 
+    before do
+      sign_in(user)
+      visit explore_snippets_path
+    end
+
     it 'see only public snippets' do
       expect(page).to have_content(public_snippet.title)
       expect(page).not_to have_content(internal_snippet.title)
@@ -55,6 +59,10 @@ RSpec.describe 'Explore Snippets', feature_category: :source_code_management do
   end
 
   context 'Not authenticated user' do
+    before do
+      visit explore_snippets_path
+    end
+
     it 'see only public snippets' do
       expect(page).to have_content(public_snippet.title)
       expect(page).not_to have_content(internal_snippet.title)
diff --git a/spec/frontend/boards/components/board_content_spec.js b/spec/frontend/boards/components/board_content_spec.js
index e14f661a8bd..c8b1811cdeb 100644
--- a/spec/frontend/boards/components/board_content_spec.js
+++ b/spec/frontend/boards/components/board_content_spec.js
@@ -11,6 +11,7 @@ import getters from 'ee_else_ce/boards/stores/getters';
 import BoardColumn from '~/boards/components/board_column.vue';
 import BoardContent from '~/boards/components/board_content.vue';
 import BoardContentSidebar from '~/boards/components/board_content_sidebar.vue';
+import BoardAddNewColumn from 'ee_else_ce/boards/components/board_add_new_column.vue';
 import { mockLists, mockListsById } from '../mock_data';
 
 Vue.use(Vuex);
@@ -76,6 +77,9 @@ describe('BoardContent', () => {
     });
   };
 
+  const findBoardColumns = () => wrapper.findAllComponents(BoardColumn);
+  const findBoardAddNewColumn = () => wrapper.findComponent(BoardAddNewColumn);
+
   describe('default', () => {
     beforeEach(() => {
       createComponent();
@@ -100,6 +104,10 @@ describe('BoardContent', () => {
       expect(listEl.attributes('delay')).toBe('100');
       expect(listEl.attributes('delayontouchonly')).toBe('true');
     });
+
+    it('does not show the "add column" form', () => {
+      expect(findBoardAddNewColumn().exists()).toBe(false);
+    });
   });
 
   describe('when issuableType is not issue', () => {
@@ -155,4 +163,20 @@ describe('BoardContent', () => {
       expect(eventHub.$on).toHaveBeenCalledWith('updateBoard', wrapper.vm.refetchLists);
     });
   });
+
+  describe('when "add column" form is visible', () => {
+    beforeEach(() => {
+      createComponent({ state: { addColumnForm: { visible: true } } });
+    });
+
+    it('shows the "add column" form', () => {
+      expect(findBoardAddNewColumn().exists()).toBe(true);
+    });
+
+    it('hides other columns on mobile viewports', () => {
+      findBoardColumns().wrappers.forEach((column) => {
+        expect(column.classes()).toEqual(['gl-display-none!', 'gl-sm-display-inline-block!']);
+      });
+    });
+  });
 });
diff --git a/spec/frontend/work_items/components/notes/system_note_spec.js b/spec/frontend/work_items/components/notes/system_note_spec.js
index fd5f373d076..03f1aa356ad 100644
--- a/spec/frontend/work_items/components/notes/system_note_spec.js
+++ b/spec/frontend/work_items/components/notes/system_note_spec.js
@@ -1,54 +1,32 @@
 import { GlIcon } from '@gitlab/ui';
-import MockAdapter from 'axios-mock-adapter';
 import { shallowMount } from '@vue/test-utils';
-import waitForPromises from 'helpers/wait_for_promises';
-import { renderGFM } from '~/behaviors/markdown/render_gfm';
+import MockAdapter from 'axios-mock-adapter';
+import { getIdFromGraphQLId } from '~/graphql_shared/utils';
 import WorkItemSystemNote from '~/work_items/components/notes/system_note.vue';
-import NoteHeader from '~/notes/components/note_header.vue';
+import { workItemSystemNoteWithMetadata } from 'jest/work_items/mock_data';
 import axios from '~/lib/utils/axios_utils';
-import { HTTP_STATUS_OK } from '~/lib/utils/http_status';
 
 jest.mock('~/behaviors/markdown/render_gfm');
 
-describe('system note component', () => {
+describe('Work Items system note component', () => {
   let wrapper;
-  let props;
   let mock;
 
-  const findTimelineIcon = () => wrapper.findComponent(GlIcon);
-  const findSystemNoteMessage = () => wrapper.findComponent(NoteHeader);
-  const findOutdatedLineButton = () =>
-    wrapper.findComponent('[data-testid="outdated-lines-change-btn"]');
-  const findOutdatedLines = () => wrapper.findComponent('[data-testid="outdated-lines"]');
+  const createComponent = ({ note = workItemSystemNoteWithMetadata } = {}) => {
+    mock = new MockAdapter(axios);
 
-  const createComponent = (propsData = {}) => {
     wrapper = shallowMount(WorkItemSystemNote, {
-      propsData,
-      slots: {
-        'extra-controls':
-          '<gl-button data-testid="outdated-lines-change-btn">Compare with last version</gl-button>',
+      propsData: {
+        note,
       },
     });
   };
 
-  beforeEach(() => {
-    props = {
-      note: {
-        id: '1424',
-        author: {
-          id: 1,
-          name: 'Root',
-          username: 'root',
-          state: 'active',
-          avatarUrl: 'path',
-          path: '/root',
-        },
-        bodyHtml: '<p dir="auto">closed</p>',
-        systemNoteIconName: 'status_closed',
-        createdAt: '2017-08-02T10:51:58.559Z',
-      },
-    };
+  const findTimelineIcon = () => wrapper.findComponent(GlIcon);
+  const findComparePreviousVersionButton = () => wrapper.find('[data-testid="compare-btn"]');
 
+  beforeEach(() => {
+    createComponent();
     mock = new MockAdapter(axios);
   });
 
@@ -57,56 +35,16 @@ describe('system note component', () => {
   });
 
   it('should render a list item with correct id', () => {
-    createComponent(props);
-
-    expect(wrapper.attributes('id')).toBe(`note_${props.note.id}`);
-  });
-
-  // Note: The test case below is to handle a use case related to vuex store but since this does not
-  // have a vuex store , disabling it now will be fixing it in the next iteration
-  // eslint-disable-next-line jest/no-disabled-tests
-  it.skip('should render target class is note is target note', () => {
-    createComponent(props);
-
-    expect(wrapper.classes()).toContain('target');
+    expect(wrapper.attributes('id')).toBe(
+      `note_${getIdFromGraphQLId(workItemSystemNoteWithMetadata.id)}`,
+    );
   });
 
   it('should render svg icon', () => {
-    createComponent(props);
-
     expect(findTimelineIcon().exists()).toBe(true);
   });
 
-  // Redcarpet Markdown renderer wraps text in `<p>` tags
-  // we need to strip them because they break layout of commit lists in system notes:
-  // https://gitlab.com/gitlab-org/gitlab-foss/uploads/b07a10670919254f0220d3ff5c1aa110/jqzI.png
-  it('removes wrapping paragraph from note HTML', () => {
-    createComponent(props);
-
-    expect(findSystemNoteMessage().html()).toContain('<span>closed</span>');
-  });
-
-  it('should renderGFM onMount', () => {
-    createComponent(props);
-
-    expect(renderGFM).toHaveBeenCalled();
-  });
-
-  // eslint-disable-next-line jest/no-disabled-tests
-  it.skip('renders outdated code lines', async () => {
-    mock
-      .onGet('/outdated_line_change_path')
-      .reply(HTTP_STATUS_OK, [
-        { rich_text: 'console.log', type: 'new', line_code: '123', old_line: null, new_line: 1 },
-      ]);
-
-    createComponent({
-      note: { ...props.note, outdated_line_change_path: '/outdated_line_change_path' },
-    });
-
-    await findOutdatedLineButton().vm.$emit('click');
-    await waitForPromises();
-
-    expect(findOutdatedLines().exists()).toBe(true);
+  it('should not show compare previous version for FOSS', () => {
+    expect(findComparePreviousVersionButton().exists()).toBe(false);
   });
 });
diff --git a/spec/frontend/work_items/components/notes/work_item_add_note_spec.js b/spec/frontend/work_items/components/notes/work_item_add_note_spec.js
index 739340f4936..e575b6bc097 100644
--- a/spec/frontend/work_items/components/notes/work_item_add_note_spec.js
+++ b/spec/frontend/work_items/components/notes/work_item_add_note_spec.js
@@ -225,7 +225,7 @@ describe('Work item add note', () => {
   });
 
   it('skips calling the work item query when missing workItemIid', async () => {
-    await createComponent({ workItemIid: null, isEditing: false });
+    await createComponent({ workItemIid: '', isEditing: false });
 
     expect(workItemResponseHandler).not.toHaveBeenCalled();
   });
diff --git a/spec/frontend/work_items/components/work_item_labels_spec.js b/spec/frontend/work_items/components/work_item_labels_spec.js
index 554c9a4f7b8..6894aa236e3 100644
--- a/spec/frontend/work_items/components/work_item_labels_spec.js
+++ b/spec/frontend/work_items/components/work_item_labels_spec.js
@@ -266,7 +266,7 @@ describe('WorkItemLabels component', () => {
   });
 
   it('skips calling the work item query when missing workItemIid', async () => {
-    createComponent({ workItemIid: null });
+    createComponent({ workItemIid: '' });
     await waitForPromises();
 
     expect(workItemQuerySuccess).not.toHaveBeenCalled();
diff --git a/spec/frontend/work_items/mock_data.js b/spec/frontend/work_items/mock_data.js
index 05c6a21bb38..93f24cf2337 100644
--- a/spec/frontend/work_items/mock_data.js
+++ b/spec/frontend/work_items/mock_data.js
@@ -1879,6 +1879,10 @@ export const mockWorkItemNotesResponse = {
                         repositionNote: true,
                         __typename: 'NotePermissions',
                       },
+                      systemNoteMetadata: {
+                        id: 'gid://gitlab/SystemNoteMetadata/36',
+                        descriptionVersion: null,
+                      },
                       author: {
                         avatarUrl:
                           'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
@@ -1924,6 +1928,10 @@ export const mockWorkItemNotesResponse = {
                         repositionNote: true,
                         __typename: 'NotePermissions',
                       },
+                      systemNoteMetadata: {
+                        id: 'gid://gitlab/SystemNoteMetadata/76',
+                        descriptionVersion: null,
+                      },
                       author: {
                         avatarUrl:
                           'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
@@ -1968,6 +1976,10 @@ export const mockWorkItemNotesResponse = {
                         repositionNote: true,
                         __typename: 'NotePermissions',
                       },
+                      systemNoteMetadata: {
+                        id: 'gid://gitlab/SystemNoteMetadata/71',
+                        descriptionVersion: null,
+                      },
                       author: {
                         avatarUrl:
                           'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
@@ -2073,6 +2085,10 @@ export const mockWorkItemNotesByIidResponse = {
                               repositionNote: true,
                               __typename: 'NotePermissions',
                             },
+                            systemNoteMetadata: {
+                              id: 'gid://gitlab/SystemNoteMetadata/72',
+                              descriptionVersion: null,
+                            },
                             author: {
                               id: 'gid://gitlab/User/1',
                               avatarUrl:
@@ -2120,6 +2136,10 @@ export const mockWorkItemNotesByIidResponse = {
                               repositionNote: true,
                               __typename: 'NotePermissions',
                             },
+                            systemNoteMetadata: {
+                              id: 'gid://gitlab/SystemNoteMetadata/76',
+                              descriptionVersion: null,
+                            },
                             author: {
                               id: 'gid://gitlab/User/1',
                               avatarUrl:
@@ -2168,6 +2188,10 @@ export const mockWorkItemNotesByIidResponse = {
                               repositionNote: true,
                               __typename: 'NotePermissions',
                             },
+                            systemNoteMetadata: {
+                              id: 'gid://gitlab/SystemNoteMetadata/22',
+                              descriptionVersion: null,
+                            },
                             author: {
                               id: 'gid://gitlab/User/1',
                               avatarUrl:
@@ -2274,6 +2298,10 @@ export const mockMoreWorkItemNotesResponse = {
                               repositionNote: true,
                               __typename: 'NotePermissions',
                             },
+                            systemNoteMetadata: {
+                              id: 'gid://gitlab/SystemNoteMetadata/16',
+                              descriptionVersion: null,
+                            },
                             author: {
                               avatarUrl:
                                 'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
@@ -2321,6 +2349,10 @@ export const mockMoreWorkItemNotesResponse = {
                               repositionNote: true,
                               __typename: 'NotePermissions',
                             },
+                            systemNoteMetadata: {
+                              id: 'gid://gitlab/SystemNoteMetadata/96',
+                              descriptionVersion: null,
+                            },
                             author: {
                               avatarUrl:
                                 'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
@@ -2366,6 +2398,10 @@ export const mockMoreWorkItemNotesResponse = {
                               repositionNote: true,
                               __typename: 'NotePermissions',
                             },
+                            systemNoteMetadata: {
+                              id: 'gid://gitlab/SystemNoteMetadata/56',
+                              descriptionVersion: null,
+                            },
                             author: {
                               avatarUrl:
                                 'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
@@ -2430,6 +2466,7 @@ export const createWorkItemNoteResponse = {
                   webUrl: 'http://127.0.0.1:3000/root',
                   __typename: 'UserCore',
                 },
+                systemNoteMetadata: null,
                 userPermissions: {
                   adminNote: true,
                   awardEmoji: true,
@@ -2479,6 +2516,7 @@ export const mockWorkItemCommentNote = {
     repositionNote: true,
     __typename: 'NotePermissions',
   },
+  systemNoteMetadata: null,
   author: {
     avatarUrl: 'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
     id: 'gid://gitlab/User/1',
@@ -2564,6 +2602,7 @@ export const mockWorkItemNotesResponseWithComments = {
                               webUrl: 'http://127.0.0.1:3000/root',
                               __typename: 'UserCore',
                             },
+                            systemNoteMetadata: null,
                             userPermissions: {
                               adminNote: true,
                               awardEmoji: true,
@@ -2601,6 +2640,7 @@ export const mockWorkItemNotesResponseWithComments = {
                               webUrl: 'http://127.0.0.1:3000/root',
                               __typename: 'UserCore',
                             },
+                            systemNoteMetadata: null,
                             userPermissions: {
                               adminNote: true,
                               awardEmoji: true,
@@ -2646,6 +2686,7 @@ export const mockWorkItemNotesResponseWithComments = {
                               repositionNote: true,
                               __typename: 'NotePermissions',
                             },
+                            systemNoteMetadata: null,
                             author: {
                               avatarUrl:
                                 'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
@@ -2716,6 +2757,10 @@ export const workItemNotesCreateSubscriptionResponse = {
                 repositionNote: true,
                 __typename: 'NotePermissions',
               },
+              systemNoteMetadata: {
+                id: 'gid://gitlab/SystemNoteMetadata/65',
+                descriptionVersion: null,
+              },
               author: {
                 avatarUrl:
                   'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
@@ -2739,6 +2784,10 @@ export const workItemNotesCreateSubscriptionResponse = {
         repositionNote: true,
         __typename: 'NotePermissions',
       },
+      systemNoteMetadata: {
+        id: 'gid://gitlab/SystemNoteMetadata/26',
+        descriptionVersion: null,
+      },
       author: {
         avatarUrl:
           'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
@@ -2778,6 +2827,10 @@ export const workItemNotesUpdateSubscriptionResponse = {
         repositionNote: true,
         __typename: 'NotePermissions',
       },
+      systemNoteMetadata: {
+        id: 'gid://gitlab/SystemNoteMetadata/46',
+        descriptionVersion: null,
+      },
       author: {
         avatarUrl:
           'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
@@ -2801,3 +2854,303 @@ export const workItemNotesDeleteSubscriptionResponse = {
     },
   },
 };
+
+export const workItemSystemNoteWithMetadata = {
+  id: 'gid://gitlab/Note/1651',
+  body: 'changed the description',
+  bodyHtml: '<p data-sourcepos="1:1-1:23" dir="auto">changed the description</p>',
+  system: true,
+  internal: false,
+  systemNoteIconName: 'pencil',
+  createdAt: '2023-05-05T07:19:37Z',
+  lastEditedAt: '2023-05-05T07:19:37Z',
+  url: 'https://gdk.test:3443/flightjs/Flight/-/work_items/46#note_1651',
+  lastEditedBy: null,
+  discussion: {
+    id: 'gid://gitlab/Discussion/7d4a46ea0525e2eeed451f7b718b0ebe73205374',
+    __typename: 'Discussion',
+  },
+  author: {
+    id: 'gid://gitlab/User/1',
+    avatarUrl:
+      'https://secure.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
+    name: 'Administrator',
+    username: 'root',
+    webUrl: 'https://gdk.test:3443/root',
+    __typename: 'UserCore',
+  },
+  userPermissions: {
+    adminNote: false,
+    awardEmoji: true,
+    readNote: true,
+    createNote: true,
+    resolveNote: true,
+    repositionNote: false,
+    __typename: 'NotePermissions',
+  },
+  systemNoteMetadata: {
+    id: 'gid://gitlab/SystemNoteMetadata/670',
+    descriptionVersion: {
+      id: 'gid://gitlab/DescriptionVersion/167',
+      description: '5th May 90 987',
+      diff: '<span class="idiff">5th May 90</span><span class="idiff addition"> 987</span>',
+      diffPath: '/flightjs/Flight/-/issues/46/descriptions/167/diff',
+      deletePath: '/flightjs/Flight/-/issues/46/descriptions/167',
+      canDelete: true,
+      deleted: false,
+      startVersionId: '',
+      __typename: 'DescriptionVersion',
+    },
+    __typename: 'SystemNoteMetadata',
+  },
+  __typename: 'Note',
+};
+
+export const workItemNotesWithSystemNotesWithChangedDescription = {
+  data: {
+    workspace: {
+      id: 'gid://gitlab/Project/4',
+      workItems: {
+        nodes: [
+          {
+            id: 'gid://gitlab/WorkItem/733',
+            iid: '79',
+            widgets: [
+              {
+                __typename: 'WorkItemWidgetAssignees',
+              },
+              {
+                __typename: 'WorkItemWidgetLabels',
+              },
+              {
+                __typename: 'WorkItemWidgetDescription',
+              },
+              {
+                __typename: 'WorkItemWidgetHierarchy',
+              },
+              {
+                __typename: 'WorkItemWidgetMilestone',
+              },
+              {
+                type: 'NOTES',
+                discussions: {
+                  pageInfo: {
+                    hasNextPage: false,
+                    hasPreviousPage: false,
+                    startCursor: null,
+                    endCursor: null,
+                    __typename: 'PageInfo',
+                  },
+                  nodes: [
+                    {
+                      id: 'gid://gitlab/Discussion/aa72f4c2f3eef66afa6d79a805178801ce4bd89f',
+                      notes: {
+                        nodes: [
+                          {
+                            id: 'gid://gitlab/Note/1687',
+                            body: 'changed the description',
+                            bodyHtml:
+                              '<p data-sourcepos="1:1-1:23" dir="auto">changed the description</p>',
+                            system: true,
+                            internal: false,
+                            systemNoteIconName: 'pencil',
+                            createdAt: '2023-05-10T05:21:01Z',
+                            lastEditedAt: '2023-05-10T05:21:01Z',
+                            url: 'https://gdk.test:3443/gnuwget/Wget2/-/work_items/79#note_1687',
+                            lastEditedBy: null,
+                            discussion: {
+                              id:
+                                'gid://gitlab/Discussion/aa72f4c2f3eef66afa6d79a805178801ce4bd89f',
+                              __typename: 'Discussion',
+                            },
+                            author: {
+                              id: 'gid://gitlab/User/1',
+                              avatarUrl:
+                                'https://secure.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
+                              name: 'Administrator',
+                              username: 'root',
+                              webUrl: 'https://gdk.test:3443/root',
+                              __typename: 'UserCore',
+                            },
+                            userPermissions: {
+                              adminNote: false,
+                              awardEmoji: true,
+                              readNote: true,
+                              createNote: true,
+                              resolveNote: true,
+                              repositionNote: false,
+                              __typename: 'NotePermissions',
+                            },
+                            systemNoteMetadata: {
+                              id: 'gid://gitlab/SystemNoteMetadata/703',
+                              descriptionVersion: {
+                                id: 'gid://gitlab/DescriptionVersion/198',
+                                description: 'Desc1',
+                                diff: '<span class="idiff addition">Desc1</span>',
+                                diffPath: '/gnuwget/Wget2/-/issues/79/descriptions/198/diff',
+                                deletePath: '/gnuwget/Wget2/-/issues/79/descriptions/198',
+                                canDelete: true,
+                                deleted: false,
+                                __typename: 'DescriptionVersion',
+                              },
+                              __typename: 'SystemNoteMetadata',
+                            },
+                            __typename: 'Note',
+                          },
+                        ],
+                        __typename: 'NoteConnection',
+                      },
+                      __typename: 'Discussion',
+                    },
+                    {
+                      id: 'gid://gitlab/Discussion/a7d3cf7bd72f7a98f802845f538af65cb11a02cc',
+                      notes: {
+                        nodes: [
+                          {
+                            id: 'gid://gitlab/Note/1688',
+                            body: 'changed the description',
+                            bodyHtml:
+                              '<p data-sourcepos="1:1-1:23" dir="auto">changed the description</p>',
+                            system: true,
+                            internal: false,
+                            systemNoteIconName: 'pencil',
+                            createdAt: '2023-05-10T05:21:05Z',
+                            lastEditedAt: '2023-05-10T05:21:05Z',
+                            url: 'https://gdk.test:3443/gnuwget/Wget2/-/work_items/79#note_1688',
+                            lastEditedBy: null,
+                            discussion: {
+                              id:
+                                'gid://gitlab/Discussion/a7d3cf7bd72f7a98f802845f538af65cb11a02cc',
+                              __typename: 'Discussion',
+                            },
+                            author: {
+                              id: 'gid://gitlab/User/1',
+                              avatarUrl:
+                                'https://secure.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
+                              name: 'Administrator',
+                              username: 'root',
+                              webUrl: 'https://gdk.test:3443/root',
+                              __typename: 'UserCore',
+                            },
+                            userPermissions: {
+                              adminNote: false,
+                              awardEmoji: true,
+                              readNote: true,
+                              createNote: true,
+                              resolveNote: true,
+                              repositionNote: false,
+                              __typename: 'NotePermissions',
+                            },
+                            systemNoteMetadata: {
+                              id: 'gid://gitlab/SystemNoteMetadata/704',
+                              descriptionVersion: {
+                                id: 'gid://gitlab/DescriptionVersion/199',
+                                description: 'Desc2',
+                                diff:
+                                  '<span class="idiff">Desc</span><span class="idiff deletion">1</span><span class="idiff addition">2</span>',
+                                diffPath: '/gnuwget/Wget2/-/issues/79/descriptions/199/diff',
+                                deletePath: '/gnuwget/Wget2/-/issues/79/descriptions/199',
+                                canDelete: true,
+                                deleted: false,
+                                __typename: 'DescriptionVersion',
+                              },
+                              __typename: 'SystemNoteMetadata',
+                            },
+                            __typename: 'Note',
+                          },
+                        ],
+                        __typename: 'NoteConnection',
+                      },
+                      __typename: 'Discussion',
+                    },
+                    {
+                      id: 'gid://gitlab/Discussion/391eed1ee0a258cc966a51dde900424f3b51b95d',
+                      notes: {
+                        nodes: [
+                          {
+                            id: 'gid://gitlab/Note/1689',
+                            body: 'changed the description',
+                            bodyHtml:
+                              '<p data-sourcepos="1:1-1:23" dir="auto">changed the description</p>',
+                            system: true,
+                            internal: false,
+                            systemNoteIconName: 'pencil',
+                            createdAt: '2023-05-10T05:21:08Z',
+                            lastEditedAt: '2023-05-10T05:21:08Z',
+                            url: 'https://gdk.test:3443/gnuwget/Wget2/-/work_items/79#note_1689',
+                            lastEditedBy: null,
+                            discussion: {
+                              id:
+                                'gid://gitlab/Discussion/391eed1ee0a258cc966a51dde900424f3b51b95d',
+                              __typename: 'Discussion',
+                            },
+                            author: {
+                              id: 'gid://gitlab/User/1',
+                              avatarUrl:
+                                'https://secure.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
+                              name: 'Administrator',
+                              username: 'root',
+                              webUrl: 'https://gdk.test:3443/root',
+                              __typename: 'UserCore',
+                            },
+                            userPermissions: {
+                              adminNote: false,
+                              awardEmoji: true,
+                              readNote: true,
+                              createNote: true,
+                              resolveNote: true,
+                              repositionNote: false,
+                              __typename: 'NotePermissions',
+                            },
+                            systemNoteMetadata: {
+                              id: 'gid://gitlab/SystemNoteMetadata/705',
+                              descriptionVersion: {
+                                id: 'gid://gitlab/DescriptionVersion/200',
+                                description: 'Desc3',
+                                diff:
+                                  '<span class="idiff">Desc</span><span class="idiff deletion">2</span><span class="idiff addition">3</span>',
+                                diffPath: '/gnuwget/Wget2/-/issues/79/descriptions/200/diff',
+                                deletePath: '/gnuwget/Wget2/-/issues/79/descriptions/200',
+                                canDelete: true,
+                                deleted: false,
+                                __typename: 'DescriptionVersion',
+                              },
+                              __typename: 'SystemNoteMetadata',
+                            },
+                            __typename: 'Note',
+                          },
+                        ],
+                        __typename: 'NoteConnection',
+                      },
+                      __typename: 'Discussion',
+                    },
+                  ],
+                  __typename: 'DiscussionConnection',
+                },
+                __typename: 'WorkItemWidgetNotes',
+              },
+              {
+                __typename: 'WorkItemWidgetHealthStatus',
+              },
+              {
+                __typename: 'WorkItemWidgetProgress',
+              },
+              {
+                __typename: 'WorkItemWidgetNotifications',
+              },
+              {
+                __typename: 'WorkItemWidgetCurrentUserTodos',
+              },
+              {
+                __typename: 'WorkItemWidgetAwardEmoji',
+              },
+            ],
+            __typename: 'WorkItem',
+          },
+        ],
+        __typename: 'WorkItemConnection',
+      },
+      __typename: 'Project',
+    },
+  },
+};
diff --git a/spec/frontend/work_items/notes/collapse_utils_spec.js b/spec/frontend/work_items/notes/collapse_utils_spec.js
new file mode 100644
index 00000000000..c26ef891e9f
--- /dev/null
+++ b/spec/frontend/work_items/notes/collapse_utils_spec.js
@@ -0,0 +1,29 @@
+import {
+  isDescriptionSystemNote,
+  getTimeDifferenceInMinutes,
+} from '~/work_items/notes/collapse_utils';
+import { workItemSystemNoteWithMetadata } from '../mock_data';
+
+describe('Work items collapse utils', () => {
+  it('checks if a system note is of a description type', () => {
+    expect(isDescriptionSystemNote(workItemSystemNoteWithMetadata)).toEqual(true);
+  });
+
+  it('returns false when a system note is not a description type', () => {
+    expect(isDescriptionSystemNote({ ...workItemSystemNoteWithMetadata, system: false })).toEqual(
+      false,
+    );
+  });
+
+  it('gets the time difference between two notes', () => {
+    const anotherSystemNote = {
+      ...workItemSystemNoteWithMetadata,
+      createdAt: '2023-05-06T07:19:37Z',
+    };
+
+    // kept the dates 24 hours apart so 24 * 60 mins = 1440
+    expect(getTimeDifferenceInMinutes(workItemSystemNoteWithMetadata, anotherSystemNote)).toEqual(
+      1440,
+    );
+  });
+});
-- 
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