src/components/status/status.js

@@ -437,6 +437,12 @@ const Status = {
     },
     visibilityLocalized () {
       return this.$i18n.t('general.scope_in_timeline.' + this.status.visibility)
+    },
+    isEdited () {
+      return this.status.edited_at !== null
+    },
+    editingAvailable () {
+      return this.$store.state.instance.editingAvailable
     }
   },
   methods: {

src/components/status/status.scss

@@ -160,7 +160,8 @@
     margin-right: 0.2em;
   }
 
-  & .heading-reply-row {
+  & .heading-reply-row,
+  & .heading-edited-row {
     position: relative;
     align-content: baseline;
     font-size: 0.85em;

src/components/status/status.vue

@@ -329,6 +329,30 @@
                 class="mentions-line"
               />
             </div>
+            <div
+              v-if="isEdited && editingAvailable"
+              class="heading-edited-row"
+            >
+              <i18n-t
+                keypath="status.edited_at"
+                tag="span"
+              >
+                <template #time>
+                  <i18n-t
+                    keypath="time.in_past"
+                    tag="span"
+                  >
+                    <template>
+                      <Timeago
+                        :time="status.edited_at"
+                        :auto-update="60"
+                        :long-format="true"
+                      />
+                    </template>
+                  </i18n-t>
+                </template>
+              </i18n-t>
+            </div>
           </div>
 
           <StatusContent