diff --git a/app/docs/slate/source/includes/_users.md b/app/docs/slate/source/includes/_users.md
index 4df28755b..be2728d0b 100644
--- a/app/docs/slate/source/includes/_users.md
+++ b/app/docs/slate/source/includes/_users.md
@@ -438,12 +438,6 @@ await octokit.request('GET /api/template_message_settings.json')
             "type_name": "我创建的或负责的",
             "total_settings_count": 4,
             "settings": [
-                {
-                    "name": "易修状态变更",
-                    "key": "IssueChanged",
-                    "notification_disabled": true,
-                    "email_disabled": false
-                },
                 {
                     "name": "易修被指派",
                     "key": "IssueAssigned",
@@ -455,12 +449,6 @@ await octokit.request('GET /api/template_message_settings.json')
                     "key": "PullRequestAssigned",
                     "notification_disabled": true,
                     "email_disabled": false
-                },
-                {
-                    "name": "合并请求状态变更",
-                    "key": "PullRequestAssigned",
-                    "notification_disabled": true,
-                    "email_disabled": false
                 }
             ]
         },
@@ -539,10 +527,8 @@ await octokit.request('GET /api/uses/yystopf/template_message_settings.json')
         "image_url": "system/lets/letter_avatars/2/H/188_239_142/120.png"
     },
     "notification_body": {
-        "CreateOrAssign::IssueChanged": true,
         "CreateOrAssign::IssueAssigned": true,
         "CreateOrAssign::PullRequestAssigned": true,
-        "CreateOrAssign::PullRequestChanged": true,
         "ManageProject::Issue": true,
         "ManageProject::PullRequest": true,
         "ManageProject::Member": true,
@@ -552,10 +538,8 @@ await octokit.request('GET /api/uses/yystopf/template_message_settings.json')
         "Normal::Permission": true
     },
     "email_body": {
-        "CreateOrAssign::IssueChanged": false,
         "CreateOrAssign::IssueAssigned": false,
         "CreateOrAssign::PullRequestAssigned": false,
-        "CreateOrAssign::PullRequestChanged": false,
         "ManageProject::Issue": false,
         "ManageProject::PullRequest": false,
         "ManageProject::Member": false,
@@ -599,10 +583,8 @@ await octokit.request('POST /api/uses/yystopf/template_message_settings/update_s
 {
     "setting": {
         "notification_body": {
-            "CreateOrAssign::IssueChanged": true,
             "CreateOrAssign::IssueAssigned": true,
             "CreateOrAssign::PullRequestAssigned": true,
-            "CreateOrAssign::PullRequestChanged": true,
             "ManageProject::Issue": true,
             "ManageProject::PullRequest": true,
             "ManageProject::Member": true,
@@ -612,10 +594,8 @@ await octokit.request('POST /api/uses/yystopf/template_message_settings/update_s
             "Normal::Permission": true
         },
         "email_body": {
-            "CreateOrAssign::IssueChanged": false,
             "CreateOrAssign::IssueAssigned": false,
             "CreateOrAssign::PullRequestAssigned": false,
-            "CreateOrAssign::PullRequestChanged": false,
             "ManageProject::Issue": false,
             "ManageProject::PullRequest": false,
             "ManageProject::Member": false,
@@ -649,10 +629,8 @@ await octokit.request('POST /api/uses/yystopf/template_message_settings/update_s
         "image_url": "system/lets/letter_avatars/2/H/188_239_142/120.png"
     },
     "notification_body": {
-        "CreateOrAssign::IssueChanged": true,
         "CreateOrAssign::IssueAssigned": true,
         "CreateOrAssign::PullRequestAssigned": true,
-        "CreateOrAssign::PullRequestChanged": true,
         "ManageProject::Issue": true,
         "ManageProject::PullRequest": true,
         "ManageProject::Member": true,
@@ -662,10 +640,8 @@ await octokit.request('POST /api/uses/yystopf/template_message_settings/update_s
         "Normal::Permission": true
     },
     "email_body": {
-        "CreateOrAssign::IssueChanged": false,
         "CreateOrAssign::IssueAssigned": false,
         "CreateOrAssign::PullRequestAssigned": false,
-        "CreateOrAssign::PullRequestChanged": false,
         "ManageProject::Issue": false,
         "ManageProject::PullRequest": false,
         "ManageProject::Member": false,
diff --git a/public/docs/api.html b/public/docs/api.html
index e2a642023..5df230a28 100644
--- a/public/docs/api.html
+++ b/public/docs/api.html
@@ -1670,12 +1670,6 @@ Success — a happy kitten is an authenticated kitten!
             </span><span class="nl">"type_name"</span><span class="p">:</span><span class="w"> </span><span class="s2">"我创建的或负责的"</span><span class="p">,</span><span class="w">
             </span><span class="nl">"total_settings_count"</span><span class="p">:</span><span class="w"> </span><span class="mi">4</span><span class="p">,</span><span class="w">
             </span><span class="nl">"settings"</span><span class="p">:</span><span class="w"> </span><span class="p">[</span><span class="w">
-                </span><span class="p">{</span><span class="w">
-                    </span><span class="nl">"name"</span><span class="p">:</span><span class="w"> </span><span class="s2">"易修状态变更"</span><span class="p">,</span><span class="w">
-                    </span><span class="nl">"key"</span><span class="p">:</span><span class="w"> </span><span class="s2">"IssueChanged"</span><span class="p">,</span><span class="w">
-                    </span><span class="nl">"notification_disabled"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
-                    </span><span class="nl">"email_disabled"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w">
-                </span><span class="p">},</span><span class="w">
                 </span><span class="p">{</span><span class="w">
                     </span><span class="nl">"name"</span><span class="p">:</span><span class="w"> </span><span class="s2">"易修被指派"</span><span class="p">,</span><span class="w">
                     </span><span class="nl">"key"</span><span class="p">:</span><span class="w"> </span><span class="s2">"IssueAssigned"</span><span class="p">,</span><span class="w">
@@ -1687,12 +1681,6 @@ Success — a happy kitten is an authenticated kitten!
                     </span><span class="nl">"key"</span><span class="p">:</span><span class="w"> </span><span class="s2">"PullRequestAssigned"</span><span class="p">,</span><span class="w">
                     </span><span class="nl">"notification_disabled"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
                     </span><span class="nl">"email_disabled"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w">
-                </span><span class="p">},</span><span class="w">
-                </span><span class="p">{</span><span class="w">
-                    </span><span class="nl">"name"</span><span class="p">:</span><span class="w"> </span><span class="s2">"合并请求状态变更"</span><span class="p">,</span><span class="w">
-                    </span><span class="nl">"key"</span><span class="p">:</span><span class="w"> </span><span class="s2">"PullRequestAssigned"</span><span class="p">,</span><span class="w">
-                    </span><span class="nl">"notification_disabled"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
-                    </span><span class="nl">"email_disabled"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w">
                 </span><span class="p">}</span><span class="w">
             </span><span class="p">]</span><span class="w">
         </span><span class="p">},</span><span class="w">
@@ -1777,10 +1765,8 @@ Success — a happy kitten is an authenticated kitten!
         </span><span class="nl">"image_url"</span><span class="p">:</span><span class="w"> </span><span class="s2">"system/lets/letter_avatars/2/H/188_239_142/120.png"</span><span class="w">
     </span><span class="p">},</span><span class="w">
     </span><span class="nl">"notification_body"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
-        </span><span class="nl">"CreateOrAssign::IssueChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nl">"CreateOrAssign::IssueAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nl">"CreateOrAssign::PullRequestAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
-        </span><span class="nl">"CreateOrAssign::PullRequestChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::Issue"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::PullRequest"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::Member"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
@@ -1790,10 +1776,8 @@ Success — a happy kitten is an authenticated kitten!
         </span><span class="nl">"Normal::Permission"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="w">
     </span><span class="p">},</span><span class="w">
     </span><span class="nl">"email_body"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
-        </span><span class="nl">"CreateOrAssign::IssueChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
         </span><span class="nl">"CreateOrAssign::IssueAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
         </span><span class="nl">"CreateOrAssign::PullRequestAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
-        </span><span class="nl">"CreateOrAssign::PullRequestChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::Issue"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::PullRequest"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::Member"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
@@ -1843,10 +1827,8 @@ Success — a happy kitten is an authenticated kitten!
 <div class="highlight"><pre class="highlight json tab-json"><code><span class="p">{</span><span class="w">
     </span><span class="nl">"setting"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
         </span><span class="nl">"notification_body"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
-            </span><span class="nl">"CreateOrAssign::IssueChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
             </span><span class="nl">"CreateOrAssign::IssueAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
             </span><span class="nl">"CreateOrAssign::PullRequestAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
-            </span><span class="nl">"CreateOrAssign::PullRequestChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
             </span><span class="nl">"ManageProject::Issue"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
             </span><span class="nl">"ManageProject::PullRequest"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
             </span><span class="nl">"ManageProject::Member"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
@@ -1856,10 +1838,8 @@ Success — a happy kitten is an authenticated kitten!
             </span><span class="nl">"Normal::Permission"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="w">
         </span><span class="p">},</span><span class="w">
         </span><span class="nl">"email_body"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
-            </span><span class="nl">"CreateOrAssign::IssueChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
             </span><span class="nl">"CreateOrAssign::IssueAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
             </span><span class="nl">"CreateOrAssign::PullRequestAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
-            </span><span class="nl">"CreateOrAssign::PullRequestChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
             </span><span class="nl">"ManageProject::Issue"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
             </span><span class="nl">"ManageProject::PullRequest"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
             </span><span class="nl">"ManageProject::Member"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
@@ -1904,10 +1884,8 @@ Success — a happy kitten is an authenticated kitten!
         </span><span class="nl">"image_url"</span><span class="p">:</span><span class="w"> </span><span class="s2">"system/lets/letter_avatars/2/H/188_239_142/120.png"</span><span class="w">
     </span><span class="p">},</span><span class="w">
     </span><span class="nl">"notification_body"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
-        </span><span class="nl">"CreateOrAssign::IssueChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nl">"CreateOrAssign::IssueAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nl">"CreateOrAssign::PullRequestAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
-        </span><span class="nl">"CreateOrAssign::PullRequestChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::Issue"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::PullRequest"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::Member"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span><span class="w">
@@ -1917,10 +1895,8 @@ Success — a happy kitten is an authenticated kitten!
         </span><span class="nl">"Normal::Permission"</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="w">
     </span><span class="p">},</span><span class="w">
     </span><span class="nl">"email_body"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
-        </span><span class="nl">"CreateOrAssign::IssueChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
         </span><span class="nl">"CreateOrAssign::IssueAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
         </span><span class="nl">"CreateOrAssign::PullRequestAssigned"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
-        </span><span class="nl">"CreateOrAssign::PullRequestChanged"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::Issue"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::PullRequest"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
         </span><span class="nl">"ManageProject::Member"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">