diff --git a/src/common/SignalVector.hpp b/src/common/SignalVector.hpp
index 7181067fb..074614d88 100644
--- a/src/common/SignalVector.hpp
+++ b/src/common/SignalVector.hpp
@@ -98,7 +98,7 @@ public:
     /// 	signals.
     int append(const T &item, void *caller = nullptr)
     {
-        return this->insertItem(item, -1, caller);
+        return this->insert(item, -1, caller);
     }
 
     void removeAt(int index, void *caller = nullptr)
@@ -122,26 +122,6 @@ public:
         return this->items_;
     }
 
-    // compatability
-    [[deprecated("use insert")]] int insertItem(const T &item,
-                                                int proposedIndex = -1,
-                                                void *caller = nullptr)
-    {
-        return this->insert(item, proposedIndex, caller);
-    }
-
-    [[deprecated("use append")]] int appendItem(const T &item,
-                                                void *caller = nullptr)
-    {
-        return this->append(item, caller);
-    }
-
-    [[deprecated("use removeAt")]] void removeItem(int index,
-                                                   void *caller = nullptr)
-    {
-        this->removeAt(index, caller);
-    }
-
     [[deprecated]] std::vector<T> cloneVector()
     {
         return *this->readOnly();
diff --git a/src/common/SignalVectorModel.hpp b/src/common/SignalVectorModel.hpp
index a13bd97f0..76bc14b22 100644
--- a/src/common/SignalVectorModel.hpp
+++ b/src/common/SignalVectorModel.hpp
@@ -153,12 +153,12 @@ public:
         else
         {
             int vecRow = this->getVectorIndexFromModelIndex(row);
-            this->vector_->removeItem(vecRow, this);
+            this->vector_->removeAt(vecRow, this);
 
             assert(this->rows_[row].original);
             TVectorItem item = this->getItemFromRow(
                 this->rows_[row].items, this->rows_[row].original.get());
-            this->vector_->insertItem(item, vecRow, this);
+            this->vector_->insert(item, vecRow, this);
         }
 
         return true;
@@ -225,7 +225,7 @@ public:
     void deleteRow(int row)
     {
         int signalVectorRow = this->getVectorIndexFromModelIndex(row);
-        this->vector_->removeItem(signalVectorRow);
+        this->vector_->removeAt(signalVectorRow);
     }
 
     bool removeRows(int row, int count, const QModelIndex &parent) override
@@ -240,7 +240,7 @@ public:
         assert(row >= 0 && row < this->rows_.size());
 
         int signalVectorRow = this->getVectorIndexFromModelIndex(row);
-        this->vector_->removeItem(signalVectorRow);
+        this->vector_->removeAt(signalVectorRow);
 
         return true;
     }
@@ -287,8 +287,8 @@ public:
             if (from != to)
             {
                 auto item = this->vector_->raw()[from];
-                this->vector_->removeItem(from);
-                this->vector_->insertItem(item, to);
+                this->vector_->removeAt(from);
+                this->vector_->insert(item, to);
             }
 
             // We return false since we remove items ourselves.
diff --git a/src/controllers/accounts/AccountController.cpp b/src/controllers/accounts/AccountController.cpp
index 6d272cf0c..d44e00d5b 100644
--- a/src/controllers/accounts/AccountController.cpp
+++ b/src/controllers/accounts/AccountController.cpp
@@ -9,8 +9,7 @@ namespace chatterino {
 AccountController::AccountController()
 {
     this->twitch.accounts.itemInserted.connect([this](const auto &args) {
-        this->accounts_.insertItem(
-            std::dynamic_pointer_cast<Account>(args.item));
+        this->accounts_.insert(std::dynamic_pointer_cast<Account>(args.item));
     });
 
     this->twitch.accounts.itemRemoved.connect([this](const auto &args) {
@@ -20,7 +19,7 @@ AccountController::AccountController()
             auto it = std::find(accs.begin(), accs.end(), args.item);
             assert(it != accs.end());
 
-            this->accounts_.removeItem(it - accs.begin(), this);
+            this->accounts_.removeAt(it - accs.begin(), this);
         }
     });
 
diff --git a/src/controllers/commands/CommandController.cpp b/src/controllers/commands/CommandController.cpp
index 418612be7..92d89e5c2 100644
--- a/src/controllers/commands/CommandController.cpp
+++ b/src/controllers/commands/CommandController.cpp
@@ -222,7 +222,7 @@ void CommandController::initialize(Settings &, Paths &paths)
     // of commands)
     for (const auto &command : this->commandsSetting_->getValue())
     {
-        this->items_.appendItem(command);
+        this->items_.append(command);
     }
 }
 
diff --git a/src/controllers/ignores/IgnoreController.cpp b/src/controllers/ignores/IgnoreController.cpp
index 28b511a36..0080af65c 100644
--- a/src/controllers/ignores/IgnoreController.cpp
+++ b/src/controllers/ignores/IgnoreController.cpp
@@ -14,7 +14,7 @@ void IgnoreController::initialize(Settings &, Paths &)
 
     for (const IgnorePhrase &phrase : this->ignoresSetting_.getValue())
     {
-        this->phrases.appendItem(phrase);
+        this->phrases.append(phrase);
     }
 
     this->phrases.delayedItemsChanged.connect([this] {  //
diff --git a/src/controllers/moderationactions/ModerationActions.cpp b/src/controllers/moderationactions/ModerationActions.cpp
index d13a71eab..5d2ed9dc1 100644
--- a/src/controllers/moderationactions/ModerationActions.cpp
+++ b/src/controllers/moderationactions/ModerationActions.cpp
@@ -23,7 +23,7 @@ void ModerationActions::initialize(Settings &settings, Paths &paths)
 
     for (auto &val : this->setting_->getValue())
     {
-        this->items.insertItem(val);
+        this->items.insert(val);
     }
 
     this->items.delayedItemsChanged.connect([this] {  //
diff --git a/src/controllers/notifications/NotificationController.cpp b/src/controllers/notifications/NotificationController.cpp
index 59fed3b1f..72d7b0124 100644
--- a/src/controllers/notifications/NotificationController.cpp
+++ b/src/controllers/notifications/NotificationController.cpp
@@ -26,12 +26,11 @@ void NotificationController::initialize(Settings &settings, Paths &paths)
     this->initialized_ = true;
     for (const QString &channelName : this->twitchSetting_.getValue())
     {
-        this->channelMap[Platform::Twitch].appendItem(channelName);
+        this->channelMap[Platform::Twitch].append(channelName);
     }
 
     this->channelMap[Platform::Twitch].delayedItemsChanged.connect([this] {  //
-        this->twitchSetting_.setValue(
-            this->channelMap[Platform::Twitch].raw());
+        this->twitchSetting_.setValue(this->channelMap[Platform::Twitch].raw());
     });
     /*
     for (const QString &channelName : this->mixerSetting_.getValue()) {
@@ -81,18 +80,18 @@ bool NotificationController::isChannelNotified(const QString &channelName,
 void NotificationController::addChannelNotification(const QString &channelName,
                                                     Platform p)
 {
-    channelMap[p].appendItem(channelName);
+    channelMap[p].append(channelName);
 }
 
 void NotificationController::removeChannelNotification(
     const QString &channelName, Platform p)
 {
-    for (std::vector<int>::size_type i = 0;
-         i != channelMap[p].raw().size(); i++)
+    for (std::vector<int>::size_type i = 0; i != channelMap[p].raw().size();
+         i++)
     {
         if (channelMap[p].raw()[i].toLower() == channelName.toLower())
         {
-            channelMap[p].removeItem(i);
+            channelMap[p].removeAt(i);
             i--;
         }
     }
diff --git a/src/controllers/pings/PingController.cpp b/src/controllers/pings/PingController.cpp
index 36f4b08ad..db245acc2 100644
--- a/src/controllers/pings/PingController.cpp
+++ b/src/controllers/pings/PingController.cpp
@@ -8,7 +8,7 @@ void PingController::initialize(Settings &settings, Paths &paths)
     this->initialized_ = true;
     for (const QString &channelName : this->pingSetting_.getValue())
     {
-        this->channelVector.appendItem(channelName);
+        this->channelVector.append(channelName);
     }
 
     this->channelVector.delayedItemsChanged.connect([this] {  //
@@ -37,7 +37,7 @@ bool PingController::isMuted(const QString &channelName)
 
 void PingController::muteChannel(const QString &channelName)
 {
-    channelVector.appendItem(channelName);
+    channelVector.append(channelName);
 }
 
 void PingController::unmuteChannel(const QString &channelName)
@@ -47,7 +47,7 @@ void PingController::unmuteChannel(const QString &channelName)
     {
         if (channelVector.raw()[i].toLower() == channelName.toLower())
         {
-            channelVector.removeItem(i);
+            channelVector.removeAt(i);
             i--;
         }
     }
diff --git a/src/providers/irc/Irc2.cpp b/src/providers/irc/Irc2.cpp
index ee59e94ce..2f685be63 100644
--- a/src/providers/irc/Irc2.cpp
+++ b/src/providers/irc/Irc2.cpp
@@ -252,7 +252,7 @@ void Irc::load()
         {
             ids.insert(data.id);
 
-            this->connections.appendItem(data);
+            this->connections.append(data);
         }
     }
 }
diff --git a/src/providers/twitch/TwitchAccountManager.cpp b/src/providers/twitch/TwitchAccountManager.cpp
index b772f2911..5369e40e4 100644
--- a/src/providers/twitch/TwitchAccountManager.cpp
+++ b/src/providers/twitch/TwitchAccountManager.cpp
@@ -221,7 +221,7 @@ TwitchAccountManager::AddUserResponse TwitchAccountManager::addUser(
 
     //    std::lock_guard<std::mutex> lock(this->mutex);
 
-    this->accounts.insertItem(newUser);
+    this->accounts.insert(newUser);
 
     return AddUserResponse::UserAdded;
 }
diff --git a/src/widgets/dialogs/SelectChannelDialog.cpp b/src/widgets/dialogs/SelectChannelDialog.cpp
index c8e21a18b..a17c7022a 100644
--- a/src/widgets/dialogs/SelectChannelDialog.cpp
+++ b/src/widgets/dialogs/SelectChannelDialog.cpp
@@ -152,7 +152,7 @@ SelectChannelDialog::SelectChannelDialog(QWidget *parent)
                 auto editor = new IrcConnectionEditor(unique);
                 if (editor->exec() == QDialog::Accepted)
                 {
-                    Irc::instance().connections.appendItem(editor->data());
+                    Irc::instance().connections.append(editor->data());
                 }
             });
 
@@ -171,9 +171,9 @@ SelectChannelDialog::SelectChannelDialog(QWidget *parent)
                         {
                             if (conn.id == data.id)
                             {
-                                Irc::instance().connections.removeItem(
+                                Irc::instance().connections.removeAt(
                                     i, Irc::noEraseCredentialCaller);
-                                Irc::instance().connections.insertItem(data, i);
+                                Irc::instance().connections.insert(data, i);
                             }
                             i++;
                         }
diff --git a/src/widgets/dialogs/UserInfoPopup.cpp b/src/widgets/dialogs/UserInfoPopup.cpp
index bb75a61fb..e54a4373a 100644
--- a/src/widgets/dialogs/UserInfoPopup.cpp
+++ b/src/widgets/dialogs/UserInfoPopup.cpp
@@ -336,7 +336,7 @@ void UserInfoPopup::installEvents()
 
             if (checked)
             {
-                getApp()->highlights->blacklistedUsers.insertItem(
+                getApp()->highlights->blacklistedUsers.insert(
                     HighlightBlacklistUser{this->userName_, false});
                 this->ui_.ignoreHighlights->setEnabled(true);
             }
@@ -349,7 +349,7 @@ void UserInfoPopup::installEvents()
                 {
                     if (this->userName_ == vector[i].getPattern())
                     {
-                        getApp()->highlights->blacklistedUsers.removeItem(i);
+                        getApp()->highlights->blacklistedUsers.removeAt(i);
                         i--;
                     }
                 }
diff --git a/src/widgets/settingspages/CommandPage.cpp b/src/widgets/settingspages/CommandPage.cpp
index 99b83ec90..7dc72c55f 100644
--- a/src/widgets/settingspages/CommandPage.cpp
+++ b/src/widgets/settingspages/CommandPage.cpp
@@ -46,7 +46,7 @@ CommandPage::CommandPage()
     view->setTitles({"Trigger", "Command"});
     view->getTableView()->horizontalHeader()->setStretchLastSection(true);
     view->addButtonPressed.connect([] {
-        getApp()->commands->items_.appendItem(
+        getApp()->commands->items_.append(
             Command{"/command", "I made a new command HeyGuys"});
     });
 
@@ -65,7 +65,7 @@ CommandPage::CommandPage()
             {
                 if (int index = line.indexOf(' '); index != -1)
                 {
-                    getApp()->commands->items_.insertItem(
+                    getApp()->commands->items_.insert(
                         Command(line.mid(0, index), line.mid(index + 1)));
                 }
             }
diff --git a/src/widgets/settingspages/HighlightingPage.cpp b/src/widgets/settingspages/HighlightingPage.cpp
index 9b8d1af94..fb2d7da01 100644
--- a/src/widgets/settingspages/HighlightingPage.cpp
+++ b/src/widgets/settingspages/HighlightingPage.cpp
@@ -72,7 +72,7 @@ HighlightingPage::HighlightingPage()
                 });
 
                 view->addButtonPressed.connect([] {
-                    getApp()->highlights->phrases.appendItem(HighlightPhrase{
+                    getApp()->highlights->phrases.append(HighlightPhrase{
                         "my phrase", true, false, false, false, "",
                         *ColorProvider::instance().color(
                             ColorType::SelfHighlight)});
@@ -120,7 +120,7 @@ HighlightingPage::HighlightingPage()
                 });
 
                 view->addButtonPressed.connect([] {
-                    getApp()->highlights->highlightedUsers.appendItem(
+                    getApp()->highlights->highlightedUsers.append(
                         HighlightPhrase{"highlighted user", true, false, false,
                                         false, "",
                                         *ColorProvider::instance().color(
@@ -162,7 +162,7 @@ HighlightingPage::HighlightingPage()
                 });
 
                 view->addButtonPressed.connect([] {
-                    getApp()->highlights->blacklistedUsers.appendItem(
+                    getApp()->highlights->blacklistedUsers.append(
                         HighlightBlacklistUser{"blacklisted user", false});
                 });
             }
diff --git a/src/widgets/settingspages/IgnoresPage.cpp b/src/widgets/settingspages/IgnoresPage.cpp
index 9cc657880..773fdea33 100644
--- a/src/widgets/settingspages/IgnoresPage.cpp
+++ b/src/widgets/settingspages/IgnoresPage.cpp
@@ -60,7 +60,7 @@ void addPhrasesTab(LayoutCreator<QVBoxLayout> layout)
     });
 
     view->addButtonPressed.connect([] {
-        getApp()->ignores->phrases.appendItem(
+        getApp()->ignores->phrases.append(
             IgnorePhrase{"my pattern", false, false,
                          getSettings()->ignoredPhraseReplace.getValue(), true});
     });
diff --git a/src/widgets/settingspages/ModerationPage.cpp b/src/widgets/settingspages/ModerationPage.cpp
index 479d0a7cb..87e3a5e5d 100644
--- a/src/widgets/settingspages/ModerationPage.cpp
+++ b/src/widgets/settingspages/ModerationPage.cpp
@@ -184,7 +184,7 @@ ModerationPage::ModerationPage()
             0, QHeaderView::Stretch);
 
         view->addButtonPressed.connect([] {
-            getApp()->moderationActions->items.appendItem(
+            getApp()->moderationActions->items.append(
                 ModerationAction("/timeout {user} 300"));
         });
 
diff --git a/src/widgets/settingspages/NotificationPage.cpp b/src/widgets/settingspages/NotificationPage.cpp
index 27c1da4b5..b14af27fc 100644
--- a/src/widgets/settingspages/NotificationPage.cpp
+++ b/src/widgets/settingspages/NotificationPage.cpp
@@ -100,7 +100,7 @@ NotificationPage::NotificationPage()
                 view->addButtonPressed.connect([] {
                     getApp()
                         ->notifications->channelMap[Platform::Twitch]
-                        .appendItem("channel");
+                        .append("channel");
                 });
             }
             /*