diff --git a/src/collection/collectionbackend.cpp b/src/collection/collectionbackend.cpp
index 66cc919b6..5d6f830c1 100644
--- a/src/collection/collectionbackend.cpp
+++ b/src/collection/collectionbackend.cpp
@@ -59,7 +59,7 @@
 #include "collectionquery.h"
 #include "collectiontask.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 CollectionBackend::CollectionBackend(QObject *parent)
     : CollectionBackendInterface(parent),
diff --git a/src/collection/collectionfilterwidget.cpp b/src/collection/collectionfilterwidget.cpp
index 743cff2f0..bd3a41be5 100644
--- a/src/collection/collectionfilterwidget.cpp
+++ b/src/collection/collectionfilterwidget.cpp
@@ -61,7 +61,7 @@
 #include "settings/collectionsettingspage.h"
 #include "settings/appearancesettingspage.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kFilterDelay = 500;  // msec
diff --git a/src/collection/collectionmodel.cpp b/src/collection/collectionmodel.cpp
index 41b8df869..10178eb84 100644
--- a/src/collection/collectionmodel.cpp
+++ b/src/collection/collectionmodel.cpp
@@ -77,7 +77,7 @@
 #include "settings/collectionsettingspage.h"
 
 using namespace std::chrono_literals;
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const int CollectionModel::kPrettyCoverSize = 32;
 namespace {
diff --git a/src/collection/collectionquery.cpp b/src/collection/collectionquery.cpp
index 21c98d27e..2023633d9 100644
--- a/src/collection/collectionquery.cpp
+++ b/src/collection/collectionquery.cpp
@@ -37,7 +37,7 @@
 #include "collectionquery.h"
 #include "collectionfilteroptions.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 CollectionQuery::CollectionQuery(const QSqlDatabase &db, const QString &songs_table, const CollectionFilterOptions &filter_options)
     : SqlQuery(db),
diff --git a/src/collection/collectionwatcher.cpp b/src/collection/collectionwatcher.cpp
index d63f5a714..a1fb8c7ac 100644
--- a/src/collection/collectionwatcher.cpp
+++ b/src/collection/collectionwatcher.cpp
@@ -71,7 +71,7 @@
 #endif
 
 using namespace std::chrono_literals;
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 QStringList CollectionWatcher::sValidImages = QStringList() << QStringLiteral("jpg") << QStringLiteral("png") << QStringLiteral("gif") << QStringLiteral("jpeg");
 
diff --git a/src/collection/collectionwatcher.h b/src/collection/collectionwatcher.h
index bc7f3c712..e6a1cdfba 100644
--- a/src/collection/collectionwatcher.h
+++ b/src/collection/collectionwatcher.h
@@ -47,8 +47,6 @@ class FileSystemWatcherInterface;
 class TaskManager;
 class CueParser;
 
-using namespace Qt::Literals::StringLiterals;
-
 class CollectionWatcher : public QObject {
   Q_OBJECT
 
@@ -260,11 +258,11 @@ class CollectionWatcher : public QObject {
 };
 
 inline QString CollectionWatcher::NoExtensionPart(const QString &fileName) {
-  return fileName.contains(u'.') ? fileName.section(u'.', 0, -2) : ""_L1;
+  return fileName.contains(u'.') ? fileName.section(u'.', 0, -2) : QLatin1String("");
 }
 // Thanks Amarok
 inline QString CollectionWatcher::ExtensionPart(const QString &fileName) {
-  return fileName.contains(u'.') ? fileName.mid(fileName.lastIndexOf(u'.') + 1).toLower() : ""_L1;
+  return fileName.contains(u'.') ? fileName.mid(fileName.lastIndexOf(u'.') + 1).toLower() : QLatin1String("");
 }
 inline QString CollectionWatcher::DirectoryPart(const QString &fileName) {
   return fileName.section(u'/', 0, -2);
diff --git a/src/collection/savedgroupingmanager.cpp b/src/collection/savedgroupingmanager.cpp
index 5ed2bb85d..204a79877 100644
--- a/src/collection/savedgroupingmanager.cpp
+++ b/src/collection/savedgroupingmanager.cpp
@@ -44,7 +44,7 @@
 #include "savedgroupingmanager.h"
 #include "ui_savedgroupingmanager.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const char *SavedGroupingManager::kSavedGroupingsSettingsGroup = "SavedGroupings";
 
diff --git a/src/context/contextview.cpp b/src/context/contextview.cpp
index 9cabf582d..3a9a82c6a 100644
--- a/src/context/contextview.cpp
+++ b/src/context/contextview.cpp
@@ -67,7 +67,7 @@
 #include "contextview.h"
 #include "contextalbum.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kWidgetSpacing = 50;
diff --git a/src/core/database.cpp b/src/core/database.cpp
index fd95cc092..9a7c4e492 100644
--- a/src/core/database.cpp
+++ b/src/core/database.cpp
@@ -49,7 +49,7 @@
 #include "sqlquery.h"
 #include "scopedtransaction.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const int Database::kSchemaVersion = 20;
 
diff --git a/src/core/localredirectserver.cpp b/src/core/localredirectserver.cpp
index abc16e517..ac299862f 100644
--- a/src/core/localredirectserver.cpp
+++ b/src/core/localredirectserver.cpp
@@ -39,7 +39,7 @@
 #include <QDateTime>
 #include <QRandomGenerator>
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 LocalRedirectServer::LocalRedirectServer(QObject *parent)
     : QTcpServer(parent),
diff --git a/src/core/logging.cpp b/src/core/logging.cpp
index 9dafb3cde..8bb737f4d 100644
--- a/src/core/logging.cpp
+++ b/src/core/logging.cpp
@@ -61,7 +61,7 @@
 
 #include "logging.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace logging {
 
diff --git a/src/core/mainwindow.cpp b/src/core/mainwindow.cpp
index 08a0e6e41..98016f7dc 100644
--- a/src/core/mainwindow.cpp
+++ b/src/core/mainwindow.cpp
@@ -223,7 +223,7 @@
 using std::make_unique;
 using std::make_shared;
 using namespace std::chrono_literals;
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const char *MainWindow::kSettingsGroup = "MainWindow";
 const char *MainWindow::kAllFilesFilterSpec = QT_TR_NOOP("All Files (*)");
diff --git a/src/core/networkproxyfactory.cpp b/src/core/networkproxyfactory.cpp
index 4761e6f25..13a39cb03 100644
--- a/src/core/networkproxyfactory.cpp
+++ b/src/core/networkproxyfactory.cpp
@@ -32,7 +32,7 @@
 #include "core/settings.h"
 #include "networkproxyfactory.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 NetworkProxyFactory *NetworkProxyFactory::sInstance = nullptr;
 const char *NetworkProxyFactory::kSettingsGroup = "NetworkProxy";
diff --git a/src/core/song.cpp b/src/core/song.cpp
index adfcaa2c8..3b7774c96 100644
--- a/src/core/song.cpp
+++ b/src/core/song.cpp
@@ -65,7 +65,7 @@
 #  include "mpris2/mpris_common.h"
 #endif
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const QStringList Song::kColumns = QStringList() << u"title"_s
                                                  << u"album"_s
diff --git a/src/core/sqlquery.cpp b/src/core/sqlquery.cpp
index f78f1577d..b6e269643 100644
--- a/src/core/sqlquery.cpp
+++ b/src/core/sqlquery.cpp
@@ -26,7 +26,7 @@
 
 #include "sqlquery.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 void SqlQuery::BindValue(const QString &placeholder, const QVariant &value) {
 
diff --git a/src/core/stylehelper.cpp b/src/core/stylehelper.cpp
index c27e6b484..c7552c2dc 100644
--- a/src/core/stylehelper.cpp
+++ b/src/core/stylehelper.cpp
@@ -34,7 +34,7 @@
 #include <QWindow>
 #include <qmath.h>
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 // Clamps float color values within (0, 255)
 static int clamp(float x) {
diff --git a/src/core/stylesheetloader.cpp b/src/core/stylesheetloader.cpp
index 5eedcc2a6..61834b550 100644
--- a/src/core/stylesheetloader.cpp
+++ b/src/core/stylesheetloader.cpp
@@ -39,7 +39,7 @@
 #include "core/logging.h"
 #include "stylesheetloader.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 using std::make_shared;
 
diff --git a/src/core/taskmanager.cpp b/src/core/taskmanager.cpp
index 4a3c6dbe5..cc7bb65b6 100644
--- a/src/core/taskmanager.cpp
+++ b/src/core/taskmanager.cpp
@@ -30,7 +30,7 @@
 
 #include "taskmanager.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 TaskManager::TaskManager(QObject *parent) : QObject(parent), next_task_id_(1) {
 
diff --git a/src/covermanager/albumcoverchoicecontroller.cpp b/src/covermanager/albumcoverchoicecontroller.cpp
index b3c9a6290..9d490a04d 100644
--- a/src/covermanager/albumcoverchoicecontroller.cpp
+++ b/src/covermanager/albumcoverchoicecontroller.cpp
@@ -78,7 +78,7 @@
 #include "coverfromurldialog.h"
 #include "currentalbumcoverloader.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const char *AlbumCoverChoiceController::kLoadImageFileFilter = QT_TR_NOOP("Images (*.png *.jpg *.jpeg *.bmp *.gif *.xpm *.pbm *.pgm *.ppm *.xbm)");
 const char *AlbumCoverChoiceController::kSaveImageFileFilter = QT_TR_NOOP("Images (*.png *.jpg *.jpeg *.bmp *.xpm *.pbm *.ppm *.xbm)");
diff --git a/src/covermanager/albumcoverexport.cpp b/src/covermanager/albumcoverexport.cpp
index 602745645..720bad680 100644
--- a/src/covermanager/albumcoverexport.cpp
+++ b/src/covermanager/albumcoverexport.cpp
@@ -35,7 +35,7 @@
 
 #include "core/settings.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const char *AlbumCoverExport::kSettingsGroup = "AlbumCoverExport";
 
diff --git a/src/covermanager/albumcoverfetchersearch.cpp b/src/covermanager/albumcoverfetchersearch.cpp
index ea3d64a30..e2d8ed6a0 100644
--- a/src/covermanager/albumcoverfetchersearch.cpp
+++ b/src/covermanager/albumcoverfetchersearch.cpp
@@ -48,7 +48,7 @@
 #include "coverproviders.h"
 #include "albumcoverimageresult.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kSearchTimeoutMs = 20000;
diff --git a/src/covermanager/albumcoverloaderoptions.cpp b/src/covermanager/albumcoverloaderoptions.cpp
index 70be50414..c9a0ab426 100644
--- a/src/covermanager/albumcoverloaderoptions.cpp
+++ b/src/covermanager/albumcoverloaderoptions.cpp
@@ -24,7 +24,7 @@
 #include "core/settings.h"
 #include "settings/coverssettingspage.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 AlbumCoverLoaderOptions::AlbumCoverLoaderOptions(const Options _options, const QSize _desired_scaled_size, const qreal _device_pixel_ratio, const Types &_types)
     : options(_options),
diff --git a/src/covermanager/albumcovermanager.cpp b/src/covermanager/albumcovermanager.cpp
index dfdd3f497..6936ffe2f 100644
--- a/src/covermanager/albumcovermanager.cpp
+++ b/src/covermanager/albumcovermanager.cpp
@@ -96,7 +96,7 @@
 #include "ui_albumcovermanager.h"
 
 using namespace std::literals::chrono_literals;
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kSettingsGroup[] = "CoverManager";
diff --git a/src/covermanager/coverexportrunnable.cpp b/src/covermanager/coverexportrunnable.cpp
index 792abf1e2..232c01484 100644
--- a/src/covermanager/coverexportrunnable.cpp
+++ b/src/covermanager/coverexportrunnable.cpp
@@ -34,7 +34,7 @@
 #include "albumcoverexport.h"
 #include "coverexportrunnable.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 CoverExportRunnable::CoverExportRunnable(const AlbumCoverExport::DialogResult &dialog_result, const AlbumCoverLoaderOptions::Types &cover_types, const Song &song, QObject *parent)
     : QObject(parent),
diff --git a/src/covermanager/coverfromurldialog.cpp b/src/covermanager/coverfromurldialog.cpp
index 9418c4404..08605fdca 100644
--- a/src/covermanager/coverfromurldialog.cpp
+++ b/src/covermanager/coverfromurldialog.cpp
@@ -39,7 +39,7 @@
 #include "coverfromurldialog.h"
 #include "ui_coverfromurldialog.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 CoverFromURLDialog::CoverFromURLDialog(SharedPtr<NetworkAccessManager> network, QWidget *parent)
     : QDialog(parent),
diff --git a/src/covermanager/deezercoverprovider.cpp b/src/covermanager/deezercoverprovider.cpp
index 8b3d3e152..088dac7fa 100644
--- a/src/covermanager/deezercoverprovider.cpp
+++ b/src/covermanager/deezercoverprovider.cpp
@@ -48,7 +48,7 @@
 #include "jsoncoverprovider.h"
 #include "deezercoverprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kApiUrl[] = "https://api.deezer.com";
diff --git a/src/covermanager/discogscoverprovider.cpp b/src/covermanager/discogscoverprovider.cpp
index b9cc8eb30..7d50d9384 100644
--- a/src/covermanager/discogscoverprovider.cpp
+++ b/src/covermanager/discogscoverprovider.cpp
@@ -50,7 +50,7 @@
 #include "jsoncoverprovider.h"
 #include "discogscoverprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_shared;
 
 const char *DiscogsCoverProvider::kUrlSearch = "https://api.discogs.com/database/search";
diff --git a/src/covermanager/lastfmcoverprovider.cpp b/src/covermanager/lastfmcoverprovider.cpp
index 5e0dd3b6f..a13dc4a8a 100644
--- a/src/covermanager/lastfmcoverprovider.cpp
+++ b/src/covermanager/lastfmcoverprovider.cpp
@@ -47,7 +47,7 @@
 #include "albumcoverfetcher.h"
 #include "lastfmcoverprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kUrl[] = "https://ws.audioscrobbler.com/2.0/";
diff --git a/src/covermanager/musicbrainzcoverprovider.cpp b/src/covermanager/musicbrainzcoverprovider.cpp
index 01463d2ba..3f1760ed7 100644
--- a/src/covermanager/musicbrainzcoverprovider.cpp
+++ b/src/covermanager/musicbrainzcoverprovider.cpp
@@ -44,7 +44,7 @@
 #include "jsoncoverprovider.h"
 #include "musicbrainzcoverprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kReleaseSearchUrl[] = "https://musicbrainz.org/ws/2/release/";
diff --git a/src/covermanager/musixmatchcoverprovider.cpp b/src/covermanager/musixmatchcoverprovider.cpp
index abda0b7d4..2f18ac137 100644
--- a/src/covermanager/musixmatchcoverprovider.cpp
+++ b/src/covermanager/musixmatchcoverprovider.cpp
@@ -40,7 +40,7 @@
 #include "jsoncoverprovider.h"
 #include "musixmatchcoverprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 MusixmatchCoverProvider::MusixmatchCoverProvider(Application *app, SharedPtr<NetworkAccessManager> network, QObject *parent)
     : JsonCoverProvider(QStringLiteral("Musixmatch"), true, false, 1.0, true, false, app, network, parent) {}
diff --git a/src/covermanager/opentidalcoverprovider.cpp b/src/covermanager/opentidalcoverprovider.cpp
index 1f90f1ab6..4f57e5670 100644
--- a/src/covermanager/opentidalcoverprovider.cpp
+++ b/src/covermanager/opentidalcoverprovider.cpp
@@ -47,7 +47,7 @@
 #include "jsoncoverprovider.h"
 #include "opentidalcoverprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kSettingsGroup[] = "OpenTidal";
diff --git a/src/covermanager/qobuzcoverprovider.cpp b/src/covermanager/qobuzcoverprovider.cpp
index 35b60cebc..99e594804 100644
--- a/src/covermanager/qobuzcoverprovider.cpp
+++ b/src/covermanager/qobuzcoverprovider.cpp
@@ -47,7 +47,7 @@
 #include "jsoncoverprovider.h"
 #include "qobuzcoverprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kLimit = 10;
diff --git a/src/covermanager/spotifycoverprovider.cpp b/src/covermanager/spotifycoverprovider.cpp
index 76d473ff9..2742fd6d6 100644
--- a/src/covermanager/spotifycoverprovider.cpp
+++ b/src/covermanager/spotifycoverprovider.cpp
@@ -52,7 +52,7 @@
 #include "jsoncoverprovider.h"
 #include "spotifycoverprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kApiUrl[] = "https://api.spotify.com/v1";
diff --git a/src/covermanager/tidalcoverprovider.cpp b/src/covermanager/tidalcoverprovider.cpp
index 37592f3e6..15e48e915 100644
--- a/src/covermanager/tidalcoverprovider.cpp
+++ b/src/covermanager/tidalcoverprovider.cpp
@@ -45,7 +45,7 @@
 #include "jsoncoverprovider.h"
 #include "tidalcoverprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kLimit = 10;
diff --git a/src/device/connecteddevice.cpp b/src/device/connecteddevice.cpp
index 7d0b26519..d981a087c 100644
--- a/src/device/connecteddevice.cpp
+++ b/src/device/connecteddevice.cpp
@@ -38,7 +38,7 @@
 #include "devicemanager.h"
 #include "deviceinfo.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_shared;
 
 ConnectedDevice::ConnectedDevice(const QUrl &url, DeviceLister *lister, const QString &unique_id, SharedPtr<DeviceManager> manager, Application *app, const int database_id, const bool first_time, QObject *parent)
diff --git a/src/device/devicedatabasebackend.cpp b/src/device/devicedatabasebackend.cpp
index 3fd1f6b12..efda5cffa 100644
--- a/src/device/devicedatabasebackend.cpp
+++ b/src/device/devicedatabasebackend.cpp
@@ -38,7 +38,7 @@
 #include "core/scopedtransaction.h"
 #include "devicedatabasebackend.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kDeviceSchemaVersion = 5;
diff --git a/src/device/deviceinfo.cpp b/src/device/deviceinfo.cpp
index 5ee3445b8..135b96e5b 100644
--- a/src/device/deviceinfo.cpp
+++ b/src/device/deviceinfo.cpp
@@ -34,7 +34,7 @@
 #include "devicedatabasebackend.h"
 #include "deviceinfo.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 DeviceDatabaseBackend::Device DeviceInfo::SaveToDb() const {
 
diff --git a/src/device/devicelister.cpp b/src/device/devicelister.cpp
index 22f6d8068..a8d7cbd2a 100644
--- a/src/device/devicelister.cpp
+++ b/src/device/devicelister.cpp
@@ -37,7 +37,7 @@
 
 #include "core/logging.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 DeviceLister::DeviceLister(QObject *parent)
     : QObject(parent),
diff --git a/src/device/devicemanager.cpp b/src/device/devicemanager.cpp
index b5453917d..6cd7c6df2 100644
--- a/src/device/devicemanager.cpp
+++ b/src/device/devicemanager.cpp
@@ -82,7 +82,7 @@
 #  include "gpoddevice.h"
 #endif
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_unique;
 
 const int DeviceManager::kDeviceIconSize = 32;
diff --git a/src/device/deviceview.cpp b/src/device/deviceview.cpp
index 2d8230ea6..437774662 100644
--- a/src/device/deviceview.cpp
+++ b/src/device/deviceview.cpp
@@ -67,7 +67,7 @@
 #include "deviceproperties.h"
 #include "deviceview.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_unique;
 
 const int DeviceItemDelegate::kIconPadding = 6;
diff --git a/src/device/giolister.cpp b/src/device/giolister.cpp
index a6a067a65..8950566ad 100644
--- a/src/device/giolister.cpp
+++ b/src/device/giolister.cpp
@@ -47,7 +47,7 @@
 #include "devicelister.h"
 #include "giolister.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 QString GioLister::DeviceInfo::unique_id() const {
 
diff --git a/src/device/mtpdevice.cpp b/src/device/mtpdevice.cpp
index 2c98e1b1f..1bacb8df1 100644
--- a/src/device/mtpdevice.cpp
+++ b/src/device/mtpdevice.cpp
@@ -44,7 +44,7 @@
 #include "mtploader.h"
 #include "mtpconnection.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 class DeviceLister;
 class DeviceManager;
diff --git a/src/device/udisks2lister.cpp b/src/device/udisks2lister.cpp
index f62f51415..cf4df7a7a 100644
--- a/src/device/udisks2lister.cpp
+++ b/src/device/udisks2lister.cpp
@@ -54,7 +54,7 @@
 #include "udisks2filesystem.h"
 #include "udisks2job.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_unique;
 using std::make_shared;
 
diff --git a/src/dialogs/about.cpp b/src/dialogs/about.cpp
index a4361f15f..fed737a98 100644
--- a/src/dialogs/about.cpp
+++ b/src/dialogs/about.cpp
@@ -36,7 +36,7 @@
 #include "about.h"
 #include "ui_about.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 About::About(QWidget *parent) : QDialog(parent), ui_{} {
 
diff --git a/src/dialogs/edittagdialog.cpp b/src/dialogs/edittagdialog.cpp
index a066662d2..cb3d308fa 100644
--- a/src/dialogs/edittagdialog.cpp
+++ b/src/dialogs/edittagdialog.cpp
@@ -100,7 +100,7 @@
 #include "edittagdialog.h"
 #include "ui_edittagdialog.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kTagsDifferentHintText[] = QT_TR_NOOP("(different across multiple songs)");
diff --git a/src/dialogs/errordialog.cpp b/src/dialogs/errordialog.cpp
index abb6d4f5a..5640a5122 100644
--- a/src/dialogs/errordialog.cpp
+++ b/src/dialogs/errordialog.cpp
@@ -35,7 +35,7 @@
 #include "errordialog.h"
 #include "ui_errordialog.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 ErrorDialog::ErrorDialog(QWidget *parent)
     : QDialog(parent),
diff --git a/src/dialogs/snapdialog.cpp b/src/dialogs/snapdialog.cpp
index ea79cf139..ac248eddd 100644
--- a/src/dialogs/snapdialog.cpp
+++ b/src/dialogs/snapdialog.cpp
@@ -25,7 +25,7 @@
 #include "snapdialog.h"
 #include "ui_messagedialog.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 SnapDialog::SnapDialog(QWidget *parent) : MessageDialog(parent) {
 
diff --git a/src/engine/devicefinders.cpp b/src/engine/devicefinders.cpp
index b41687320..bbab7a4f7 100644
--- a/src/engine/devicefinders.cpp
+++ b/src/engine/devicefinders.cpp
@@ -49,7 +49,7 @@
 #  endif  // _MSC_VER
 #endif  // Q_OS_WIN32
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 DeviceFinders::DeviceFinders(QObject *parent) : QObject(parent) {
 
diff --git a/src/engine/ebur128analysis.cpp b/src/engine/ebur128analysis.cpp
index 434107cca..7d806404b 100644
--- a/src/engine/ebur128analysis.cpp
+++ b/src/engine/ebur128analysis.cpp
@@ -45,7 +45,7 @@
 
 #include "ebur128analysis.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::unique_ptr;
 
 namespace {
diff --git a/src/engine/enginebase.cpp b/src/engine/enginebase.cpp
index d6f4819f6..8e85c86ad 100644
--- a/src/engine/enginebase.cpp
+++ b/src/engine/enginebase.cpp
@@ -41,7 +41,7 @@
 #  include "settings/spotifysettingspage.h"
 #endif
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 EngineBase::EngineBase(QObject *parent)
     : QObject(parent),
diff --git a/src/engine/enginedevice.cpp b/src/engine/enginedevice.cpp
index 133245f79..41715891b 100644
--- a/src/engine/enginedevice.cpp
+++ b/src/engine/enginedevice.cpp
@@ -19,7 +19,7 @@
 
 #include "enginedevice.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 EngineDevice::EngineDevice() : card(0), device(0) {}
 
diff --git a/src/engine/gstengine.cpp b/src/engine/gstengine.cpp
index 825aef107..68e58e301 100644
--- a/src/engine/gstengine.cpp
+++ b/src/engine/gstengine.cpp
@@ -61,7 +61,7 @@
 #include "gstbufferconsumer.h"
 #include "enginemetadata.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_shared;
 
 #ifdef __clang__
diff --git a/src/engine/gstenginepipeline.cpp b/src/engine/gstenginepipeline.cpp
index 9fd408365..54cf362c5 100644
--- a/src/engine/gstenginepipeline.cpp
+++ b/src/engine/gstenginepipeline.cpp
@@ -67,7 +67,7 @@
 #include "gstenginepipeline.h"
 #include "gstbufferconsumer.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 #ifdef __clang__
 #  pragma clang diagnostic push
diff --git a/src/filterparser/filterparser.cpp b/src/filterparser/filterparser.cpp
index 01112e0e9..93d890f76 100644
--- a/src/filterparser/filterparser.cpp
+++ b/src/filterparser/filterparser.cpp
@@ -28,7 +28,7 @@
 #include "filtertree.h"
 #include "filterparsersearchcomparators.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 FilterParser::FilterParser(const QString &filter_string) : filter_string_(filter_string), iter_{}, end_{} {}
 
diff --git a/src/filterparser/filtertree.cpp b/src/filterparser/filtertree.cpp
index 6e5e6afc6..a8bbb81c9 100644
--- a/src/filterparser/filtertree.cpp
+++ b/src/filterparser/filtertree.cpp
@@ -23,7 +23,7 @@
 
 #include "filtertree.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 FilterTree::FilterTree() = default;
 FilterTree::~FilterTree() = default;
diff --git a/src/globalshortcuts/globalshortcutgrabber.cpp b/src/globalshortcuts/globalshortcutgrabber.cpp
index de3fabf3f..2e1919bb6 100644
--- a/src/globalshortcuts/globalshortcutgrabber.cpp
+++ b/src/globalshortcuts/globalshortcutgrabber.cpp
@@ -34,7 +34,7 @@
 #include "globalshortcutgrabber.h"
 #include "ui_globalshortcutgrabber.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 GlobalShortcutGrabber::GlobalShortcutGrabber(QWidget *parent)
     : QDialog(parent),
diff --git a/src/globalshortcuts/globalshortcutsbackend-gnome.cpp b/src/globalshortcuts/globalshortcutsbackend-gnome.cpp
index 033fec7d9..adfb53efc 100644
--- a/src/globalshortcuts/globalshortcutsbackend-gnome.cpp
+++ b/src/globalshortcuts/globalshortcutsbackend-gnome.cpp
@@ -37,7 +37,7 @@
 
 #include "gnomesettingsdaemon.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kService1[] = "org.gnome.SettingsDaemon.MediaKeys";
diff --git a/src/globalshortcuts/globalshortcutsbackend-mate.cpp b/src/globalshortcuts/globalshortcutsbackend-mate.cpp
index f45d0d1fa..ed2f8e417 100644
--- a/src/globalshortcuts/globalshortcutsbackend-mate.cpp
+++ b/src/globalshortcuts/globalshortcutsbackend-mate.cpp
@@ -35,7 +35,7 @@
 
 #include "matesettingsdaemon.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kService1[] = "org.mate.SettingsDaemon.MediaKeys";
diff --git a/src/globalshortcuts/globalshortcutsbackend-x11.cpp b/src/globalshortcuts/globalshortcutsbackend-x11.cpp
index 80257a694..727f44152 100644
--- a/src/globalshortcuts/globalshortcutsbackend-x11.cpp
+++ b/src/globalshortcuts/globalshortcutsbackend-x11.cpp
@@ -33,7 +33,7 @@
 #include "globalshortcutsbackend.h"
 #include "globalshortcut.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 GlobalShortcutsBackendX11::GlobalShortcutsBackendX11(GlobalShortcutsManager *manager, QObject *parent)
     : GlobalShortcutsBackend(manager, GlobalShortcutsBackend::Type::X11, parent),
diff --git a/src/lyrics/chartlyricsprovider.cpp b/src/lyrics/chartlyricsprovider.cpp
index 35384cc10..fefbdd67c 100644
--- a/src/lyrics/chartlyricsprovider.cpp
+++ b/src/lyrics/chartlyricsprovider.cpp
@@ -38,7 +38,7 @@
 #include "lyricssearchresult.h"
 #include "chartlyricsprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kUrlSearch[] = "http://api.chartlyrics.com/apiv1.asmx/SearchLyricDirect";
diff --git a/src/lyrics/elyricsnetlyricsprovider.cpp b/src/lyrics/elyricsnetlyricsprovider.cpp
index 86606a66c..03b3c081e 100644
--- a/src/lyrics/elyricsnetlyricsprovider.cpp
+++ b/src/lyrics/elyricsnetlyricsprovider.cpp
@@ -29,7 +29,7 @@
 #include "lyricssearchrequest.h"
 #include "elyricsnetlyricsprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kUrl[] = "https://www.elyrics.net/read/";
diff --git a/src/lyrics/geniuslyricsprovider.cpp b/src/lyrics/geniuslyricsprovider.cpp
index 78c5169f6..d76b0a522 100644
--- a/src/lyrics/geniuslyricsprovider.cpp
+++ b/src/lyrics/geniuslyricsprovider.cpp
@@ -55,7 +55,7 @@
 #include "htmllyricsprovider.h"
 #include "geniuslyricsprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_shared;
 
 namespace {
diff --git a/src/lyrics/htmllyricsprovider.cpp b/src/lyrics/htmllyricsprovider.cpp
index d65b62d46..3674e3d39 100644
--- a/src/lyrics/htmllyricsprovider.cpp
+++ b/src/lyrics/htmllyricsprovider.cpp
@@ -36,7 +36,7 @@
 #include "htmllyricsprovider.h"
 #include "lyricssearchrequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 HtmlLyricsProvider::HtmlLyricsProvider(const QString &name, const bool enabled, const QString &start_tag, const QString &end_tag, const QString &lyrics_start, const bool multiple, SharedPtr<NetworkAccessManager> network, QObject *parent)
     : LyricsProvider(name, enabled, false, network, parent), start_tag_(start_tag), end_tag_(end_tag), lyrics_start_(lyrics_start), multiple_(multiple) {}
diff --git a/src/lyrics/letraslyricsprovider.cpp b/src/lyrics/letraslyricsprovider.cpp
index 05cb65c58..06cdc97c3 100644
--- a/src/lyrics/letraslyricsprovider.cpp
+++ b/src/lyrics/letraslyricsprovider.cpp
@@ -30,7 +30,7 @@
 #include "lyricssearchrequest.h"
 #include "letraslyricsprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kUrl[] = "https://www.letras.mus.br/winamp.php";
diff --git a/src/lyrics/lololyricsprovider.cpp b/src/lyrics/lololyricsprovider.cpp
index 6593d17e1..0ed710730 100644
--- a/src/lyrics/lololyricsprovider.cpp
+++ b/src/lyrics/lololyricsprovider.cpp
@@ -38,7 +38,7 @@
 #include "lyricssearchresult.h"
 #include "lololyricsprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kUrlSearch[] = "http://api.lololyrics.com/0.5/getLyric";
diff --git a/src/lyrics/lyricfindlyricsprovider.cpp b/src/lyrics/lyricfindlyricsprovider.cpp
index 784d12ac8..f00a2d9d8 100644
--- a/src/lyrics/lyricfindlyricsprovider.cpp
+++ b/src/lyrics/lyricfindlyricsprovider.cpp
@@ -37,7 +37,7 @@
 #include "utilities/transliterate.h"
 #include "lyricfindlyricsprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kUrl[] = "https://lyrics.lyricfind.com/lyrics";
diff --git a/src/lyrics/lyricsfetchersearch.cpp b/src/lyrics/lyricsfetchersearch.cpp
index 78afa3cc4..670ff9e8c 100644
--- a/src/lyrics/lyricsfetchersearch.cpp
+++ b/src/lyrics/lyricsfetchersearch.cpp
@@ -33,7 +33,7 @@
 #include "lyricsprovider.h"
 #include "lyricsproviders.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kSearchTimeoutMs = 3000;
diff --git a/src/lyrics/musixmatchlyricsprovider.cpp b/src/lyrics/musixmatchlyricsprovider.cpp
index 0059bc809..d95267c7e 100644
--- a/src/lyrics/musixmatchlyricsprovider.cpp
+++ b/src/lyrics/musixmatchlyricsprovider.cpp
@@ -45,7 +45,7 @@
 #include "musixmatchlyricsprovider.h"
 #include "providers/musixmatchprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_shared;
 
 MusixmatchLyricsProvider::MusixmatchLyricsProvider(SharedPtr<NetworkAccessManager> network, QObject *parent) : JsonLyricsProvider(QStringLiteral("Musixmatch"), true, false, network, parent), use_api_(true) {}
diff --git a/src/lyrics/ovhlyricsprovider.cpp b/src/lyrics/ovhlyricsprovider.cpp
index ef4ddc979..304bb320c 100644
--- a/src/lyrics/ovhlyricsprovider.cpp
+++ b/src/lyrics/ovhlyricsprovider.cpp
@@ -37,7 +37,7 @@
 #include "jsonlyricsprovider.h"
 #include "ovhlyricsprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kUrlSearch[] = "https://api.lyrics.ovh/v1/";
diff --git a/src/lyrics/songlyricscomlyricsprovider.cpp b/src/lyrics/songlyricscomlyricsprovider.cpp
index 55302aee5..41d8293d1 100644
--- a/src/lyrics/songlyricscomlyricsprovider.cpp
+++ b/src/lyrics/songlyricscomlyricsprovider.cpp
@@ -28,7 +28,7 @@
 #include "lyricssearchrequest.h"
 #include "songlyricscomlyricsprovider.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kUrl[] = "https://www.songlyrics.com/";
diff --git a/src/moodbar/moodbarpipeline.cpp b/src/moodbar/moodbarpipeline.cpp
index dca524964..c9f498b8b 100644
--- a/src/moodbar/moodbarpipeline.cpp
+++ b/src/moodbar/moodbarpipeline.cpp
@@ -42,7 +42,7 @@
 
 #include "gstfastspectrum.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_unique;
 
 namespace {
diff --git a/src/mpris2/mpris2.cpp b/src/mpris2/mpris2.cpp
index 133ae00f1..3af791095 100644
--- a/src/mpris2/mpris2.cpp
+++ b/src/mpris2/mpris2.cpp
@@ -63,7 +63,7 @@
 #include "mpris2_root.h"
 #include "mpris2_tracklist.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 QDBusArgument &operator<<(QDBusArgument &arg, const MprisPlaylist &playlist) {
   arg.beginStructure();
diff --git a/src/mpris2/mpris_common.h b/src/mpris2/mpris_common.h
index f2cf9ee37..adffabde1 100644
--- a/src/mpris2/mpris_common.h
+++ b/src/mpris2/mpris_common.h
@@ -32,8 +32,6 @@
 
 namespace mpris {
 
-using namespace Qt::Literals::StringLiterals;
-
 inline void AddMetadata(const QString &key, const QString &metadata, QVariantMap *map) {
   if (!metadata.isEmpty()) (*map)[key] = metadata;
 }
@@ -63,7 +61,7 @@ inline void AddMetadata(const QString &key, const QDBusObjectPath &metadata, QVa
 }
 
 inline QString AsMPRISDateTimeType(const qint64 time) {
-  return time != -1 ? QDateTime::fromSecsSinceEpoch(time).toString(Qt::ISODate) : ""_L1;
+  return time != -1 ? QDateTime::fromSecsSinceEpoch(time).toString(Qt::ISODate) : QLatin1String("");
 }
 
 }  // namespace mpris
diff --git a/src/musicbrainz/acoustidclient.cpp b/src/musicbrainz/acoustidclient.cpp
index dd9ef87ed..cdbbb5dcf 100644
--- a/src/musicbrainz/acoustidclient.cpp
+++ b/src/musicbrainz/acoustidclient.cpp
@@ -49,7 +49,7 @@
 
 #include "acoustidclient.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kClientId[] = "0qjUoxbowg";
diff --git a/src/musicbrainz/musicbrainzclient.cpp b/src/musicbrainz/musicbrainzclient.cpp
index 6812e6d16..ac109e8db 100644
--- a/src/musicbrainz/musicbrainzclient.cpp
+++ b/src/musicbrainz/musicbrainzclient.cpp
@@ -50,7 +50,7 @@
 #include "utilities/xmlutils.h"
 #include "musicbrainzclient.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kTrackUrl[] = "https://musicbrainz.org/ws/2/recording/";
diff --git a/src/musicbrainz/musicbrainzclient.h b/src/musicbrainz/musicbrainzclient.h
index ef9de7099..1bb5eab97 100644
--- a/src/musicbrainz/musicbrainzclient.h
+++ b/src/musicbrainz/musicbrainzclient.h
@@ -35,8 +35,6 @@
 
 #include "core/shared_ptr.h"
 
-using namespace Qt::Literals::StringLiterals;
-
 class QNetworkReply;
 class QTimer;
 class QXmlStreamReader;
@@ -154,16 +152,16 @@ class MusicBrainzClient : public QObject {
     }
 
     void SetStatusFromString(const QString &s) {
-      if (s.compare("Official"_L1, Qt::CaseInsensitive) == 0) {
+      if (s.compare(QLatin1String("Official"), Qt::CaseInsensitive) == 0) {
         status_ = Status::Official;
       }
-      else if (s.compare("Promotion"_L1, Qt::CaseInsensitive) == 0) {
+      else if (s.compare(QLatin1String("Promotion"), Qt::CaseInsensitive) == 0) {
         status_ = Status::Promotional;
       }
-      else if (s.compare("Bootleg"_L1, Qt::CaseInsensitive) == 0) {
+      else if (s.compare(QLatin1String("Bootleg"), Qt::CaseInsensitive) == 0) {
         status_ = Status::Bootleg;
       }
-      else if (s.compare("Pseudo-release"_L1, Qt::CaseInsensitive) == 0) {
+      else if (s.compare(QLatin1String("Pseudo-release"), Qt::CaseInsensitive) == 0) {
         status_ = Status::PseudoRelease;
       }
       else {
diff --git a/src/organize/organizeformat.cpp b/src/organize/organizeformat.cpp
index df359b92d..154a28285 100644
--- a/src/organize/organizeformat.cpp
+++ b/src/organize/organizeformat.cpp
@@ -36,7 +36,7 @@
 #include "organizeformat.h"
 #include "organizeformatvalidator.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const char OrganizeFormat::kBlockPattern[] = "\\{([^{}]+)\\}";
 const char OrganizeFormat::kTagPattern[] = "\\%([a-zA-Z]*)";
diff --git a/src/osd/osdbase.cpp b/src/osd/osdbase.cpp
index cf5ec3656..5ead6cf51 100644
--- a/src/osd/osdbase.cpp
+++ b/src/osd/osdbase.cpp
@@ -43,7 +43,7 @@
 #include "utilities/strutils.h"
 #include "covermanager/currentalbumcoverloader.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const char *OSDBase::kSettingsGroup = "OSD";
 
diff --git a/src/osd/osdpretty.cpp b/src/osd/osdpretty.cpp
index 2387d0faf..408682442 100644
--- a/src/osd/osdpretty.cpp
+++ b/src/osd/osdpretty.cpp
@@ -60,7 +60,7 @@
 #include "osdpretty.h"
 #include "ui_osdpretty.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 #ifdef Q_OS_WIN
 #  include <windows.h>
diff --git a/src/playlist/dynamicplaylistcontrols.cpp b/src/playlist/dynamicplaylistcontrols.cpp
index ba59c3698..13a031f10 100644
--- a/src/playlist/dynamicplaylistcontrols.cpp
+++ b/src/playlist/dynamicplaylistcontrols.cpp
@@ -29,7 +29,7 @@
 #include "dynamicplaylistcontrols.h"
 #include "ui_dynamicplaylistcontrols.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 DynamicPlaylistControls::DynamicPlaylistControls(QWidget *parent)
     : QWidget(parent),
diff --git a/src/playlist/playlist.cpp b/src/playlist/playlist.cpp
index e769b9e7a..17e30e832 100644
--- a/src/playlist/playlist.cpp
+++ b/src/playlist/playlist.cpp
@@ -96,7 +96,7 @@
 
 using std::make_shared;
 using namespace std::chrono_literals;
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const char *Playlist::kSettingsGroup = "Playlist";
 const char *Playlist::kCddaMimeType = "x-content/audio-cdda";
diff --git a/src/playlist/playlistbackend.cpp b/src/playlist/playlistbackend.cpp
index 88246f9db..91a43f07a 100644
--- a/src/playlist/playlistbackend.cpp
+++ b/src/playlist/playlistbackend.cpp
@@ -53,7 +53,7 @@
 #include "playlistparsers/cueparser.h"
 #include "smartplaylists/playlistgenerator.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_shared;
 
 namespace {
diff --git a/src/playlist/playlistdelegates.cpp b/src/playlist/playlistdelegates.cpp
index 10b1f98b1..46aa4512a 100644
--- a/src/playlist/playlistdelegates.cpp
+++ b/src/playlist/playlistdelegates.cpp
@@ -71,7 +71,7 @@
 #include "playlist/playlist.h"
 #include "playlistdelegates.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kQueueBoxBorder = 1;
diff --git a/src/playlist/playlistlistview.cpp b/src/playlist/playlistlistview.cpp
index 9ab1b80ae..af09d69aa 100644
--- a/src/playlist/playlistlistview.cpp
+++ b/src/playlist/playlistlistview.cpp
@@ -33,7 +33,7 @@
 #include "playlistlistview.h"
 #include "playlist.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kDragHoverTimeout = 500;
diff --git a/src/playlist/playlistmanager.cpp b/src/playlist/playlistmanager.cpp
index f4946ee5d..4f03fd38f 100644
--- a/src/playlist/playlistmanager.cpp
+++ b/src/playlist/playlistmanager.cpp
@@ -61,7 +61,7 @@
 #include "playlistparsers/playlistparser.h"
 #include "dialogs/saveplaylistsdialog.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 class ParserBase;
 
diff --git a/src/playlist/playlisttabbar.cpp b/src/playlist/playlisttabbar.cpp
index 1640da5c8..677d7bf86 100644
--- a/src/playlist/playlisttabbar.cpp
+++ b/src/playlist/playlisttabbar.cpp
@@ -54,7 +54,7 @@
 #include "playlistmanager.h"
 #include "playlisttabbar.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kSettingsGroup[] = "PlaylistTabBar";
diff --git a/src/playlist/playlistview.cpp b/src/playlist/playlistview.cpp
index 18633568a..da88889a5 100644
--- a/src/playlist/playlistview.cpp
+++ b/src/playlist/playlistview.cpp
@@ -81,7 +81,7 @@
 #  include "moodbar/moodbaritemdelegate.h"
 #endif
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kGlowIntensitySteps = 24;
diff --git a/src/playlistparsers/asxiniparser.cpp b/src/playlistparsers/asxiniparser.cpp
index ff22c882f..eee51b0c7 100644
--- a/src/playlistparsers/asxiniparser.cpp
+++ b/src/playlistparsers/asxiniparser.cpp
@@ -31,7 +31,7 @@
 #include "parserbase.h"
 #include "asxiniparser.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 class CollectionBackendInterface;
 
diff --git a/src/playlistparsers/asxiniparser.h b/src/playlistparsers/asxiniparser.h
index e0a82274f..25886e49b 100644
--- a/src/playlistparsers/asxiniparser.h
+++ b/src/playlistparsers/asxiniparser.h
@@ -50,7 +50,7 @@ class AsxIniParser : public ParserBase {
 
   bool TryMagic(const QByteArray &data) const override;
 
-  SongList Load(QIODevice *device, const QString &playlist_path = ""_L1, const QDir &dir = QDir(), const bool collection_lookup = true) const override;
+  SongList Load(QIODevice *device, const QString &playlist_path = QLatin1String(""), const QDir &dir = QDir(), const bool collection_lookup = true) const override;
   void Save(const SongList &songs, QIODevice *device, const QDir &dir = QDir(), const PlaylistSettingsPage::PathType path_type = PlaylistSettingsPage::PathType::Automatic) const override;
 };
 
diff --git a/src/playlistparsers/asxparser.cpp b/src/playlistparsers/asxparser.cpp
index f18f1d04a..c47d0af09 100644
--- a/src/playlistparsers/asxparser.cpp
+++ b/src/playlistparsers/asxparser.cpp
@@ -35,7 +35,7 @@
 #include "xmlparser.h"
 #include "asxparser.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 class CollectionBackendInterface;
 
diff --git a/src/playlistparsers/asxparser.h b/src/playlistparsers/asxparser.h
index fb3026b12..095ab8357 100644
--- a/src/playlistparsers/asxparser.h
+++ b/src/playlistparsers/asxparser.h
@@ -52,7 +52,7 @@ class ASXParser : public XMLParser {
 
   bool TryMagic(const QByteArray &data) const override;
 
-  SongList Load(QIODevice *device, const QString &playlist_path = ""_L1, const QDir &dir = QDir(), const bool collection_lookup = true) const override;
+  SongList Load(QIODevice *device, const QString &playlist_path = QLatin1String(""), const QDir &dir = QDir(), const bool collection_lookup = true) const override;
   void Save(const SongList &songs, QIODevice *device, const QDir &dir = QDir(), const PlaylistSettingsPage::PathType path_type = PlaylistSettingsPage::PathType::Automatic) const override;
 
  private:
diff --git a/src/playlistparsers/cueparser.cpp b/src/playlistparsers/cueparser.cpp
index 3b4ab1b00..8e1b8dca9 100644
--- a/src/playlistparsers/cueparser.cpp
+++ b/src/playlistparsers/cueparser.cpp
@@ -40,7 +40,7 @@
 #include "parserbase.h"
 #include "cueparser.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 class CollectionBackendInterface;
 
diff --git a/src/playlistparsers/cueparser.h b/src/playlistparsers/cueparser.h
index b517de628..35c30ed71 100644
--- a/src/playlistparsers/cueparser.h
+++ b/src/playlistparsers/cueparser.h
@@ -36,8 +36,6 @@
 #include "settings/playlistsettingspage.h"
 #include "parserbase.h"
 
-using namespace Qt::Literals::StringLiterals;
-
 class QIODevice;
 class CollectionBackendInterface;
 
@@ -57,7 +55,7 @@ class CueParser : public ParserBase {
 
   bool TryMagic(const QByteArray &data) const override;
 
-  SongList Load(QIODevice *device, const QString &playlist_path = ""_L1, const QDir &dir = QDir(), const bool collection_lookup = true) const override;
+  SongList Load(QIODevice *device, const QString &playlist_path = QLatin1String(""), const QDir &dir = QDir(), const bool collection_lookup = true) const override;
   void Save(const SongList &songs, QIODevice *device, const QDir &dir = QDir(), const PlaylistSettingsPage::PathType path_type = PlaylistSettingsPage::PathType::Automatic) const override;
 
   static QString FindCueFilename(const QString &filename);
diff --git a/src/playlistparsers/m3uparser.cpp b/src/playlistparsers/m3uparser.cpp
index f4ad09369..9900a4a86 100644
--- a/src/playlistparsers/m3uparser.cpp
+++ b/src/playlistparsers/m3uparser.cpp
@@ -35,7 +35,7 @@
 #include "parserbase.h"
 #include "m3uparser.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 class CollectionBackendInterface;
 
diff --git a/src/playlistparsers/m3uparser.h b/src/playlistparsers/m3uparser.h
index 048a3b88f..c270d7136 100644
--- a/src/playlistparsers/m3uparser.h
+++ b/src/playlistparsers/m3uparser.h
@@ -52,7 +52,7 @@ class M3UParser : public ParserBase {
 
   bool TryMagic(const QByteArray &data) const override;
 
-  SongList Load(QIODevice *device, const QString &playlist_path = ""_L1, const QDir &dir = QDir(), const bool collection_lookup = true) const override;
+  SongList Load(QIODevice *device, const QString &playlist_path = QLatin1String(""), const QDir &dir = QDir(), const bool collection_lookup = true) const override;
   void Save(const SongList &songs, QIODevice *device, const QDir &dir = QDir(), const PlaylistSettingsPage::PathType path_type = PlaylistSettingsPage::PathType::Automatic) const override;
 
  private:
diff --git a/src/playlistparsers/parserbase.cpp b/src/playlistparsers/parserbase.cpp
index cb43069ba..51b7d15a1 100644
--- a/src/playlistparsers/parserbase.cpp
+++ b/src/playlistparsers/parserbase.cpp
@@ -34,7 +34,7 @@
 #include "settings/playlistsettingspage.h"
 #include "parserbase.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 ParserBase::ParserBase(SharedPtr<CollectionBackendInterface> collection_backend, QObject *parent)
     : QObject(parent), collection_backend_(collection_backend) {}
diff --git a/src/playlistparsers/parserbase.h b/src/playlistparsers/parserbase.h
index 2a32e1cd6..a0cd2d97f 100644
--- a/src/playlistparsers/parserbase.h
+++ b/src/playlistparsers/parserbase.h
@@ -36,8 +36,6 @@
 #include "core/song.h"
 #include "settings/playlistsettingspage.h"
 
-using namespace Qt::Literals::StringLiterals;
-
 class QIODevice;
 class CollectionBackendInterface;
 
@@ -60,7 +58,7 @@ class ParserBase : public QObject {
   // This method might not return all the songs found in the playlist.
   // Any playlist parser may decide to leave out some entries if it finds them incomplete or invalid.
   // This means that the final resulting SongList should be considered valid (at least from the parser's point of view).
-  virtual SongList Load(QIODevice *device, const QString &playlist_path = ""_L1, const QDir &dir = QDir(), const bool collection_lookup = true) const = 0;
+  virtual SongList Load(QIODevice *device, const QString &playlist_path = QLatin1String(""), const QDir &dir = QDir(), const bool collection_lookup = true) const = 0;
   virtual void Save(const SongList &songs, QIODevice *device, const QDir &dir = QDir(), const PlaylistSettingsPage::PathType path_type = PlaylistSettingsPage::PathType::Automatic) const = 0;
 
  Q_SIGNALS:
diff --git a/src/playlistparsers/playlistparser.cpp b/src/playlistparsers/playlistparser.cpp
index d8d9053ce..f95a94aee 100644
--- a/src/playlistparsers/playlistparser.cpp
+++ b/src/playlistparsers/playlistparser.cpp
@@ -42,7 +42,7 @@
 #include "wplparser.h"
 #include "xspfparser.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const int PlaylistParser::kMagicSize = 512;
 
diff --git a/src/playlistparsers/plsparser.cpp b/src/playlistparsers/plsparser.cpp
index 5da707b88..58d86dc5f 100644
--- a/src/playlistparsers/plsparser.cpp
+++ b/src/playlistparsers/plsparser.cpp
@@ -34,7 +34,7 @@
 #include "parserbase.h"
 #include "plsparser.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 class CollectionBackendInterface;
 
diff --git a/src/playlistparsers/plsparser.h b/src/playlistparsers/plsparser.h
index 429047b83..efca35033 100644
--- a/src/playlistparsers/plsparser.h
+++ b/src/playlistparsers/plsparser.h
@@ -51,7 +51,7 @@ class PLSParser : public ParserBase {
 
   bool TryMagic(const QByteArray &data) const override;
 
-  SongList Load(QIODevice *device, const QString &playlist_path = ""_L1, const QDir &dir = QDir(), const bool collection_lookup = true) const override;
+  SongList Load(QIODevice *device, const QString &playlist_path = QLatin1String(""), const QDir &dir = QDir(), const bool collection_lookup = true) const override;
   void Save(const SongList &songs, QIODevice *device, const QDir &dir = QDir(), const PlaylistSettingsPage::PathType path_type = PlaylistSettingsPage::PathType::Automatic) const override;
 };
 
diff --git a/src/playlistparsers/wplparser.cpp b/src/playlistparsers/wplparser.cpp
index d7c2258f5..5167a7758 100644
--- a/src/playlistparsers/wplparser.cpp
+++ b/src/playlistparsers/wplparser.cpp
@@ -35,7 +35,7 @@
 #include "xmlparser.h"
 #include "wplparser.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 class CollectionBackendInterface;
 
diff --git a/src/playlistparsers/xspfparser.cpp b/src/playlistparsers/xspfparser.cpp
index a990709ef..544a4536d 100644
--- a/src/playlistparsers/xspfparser.cpp
+++ b/src/playlistparsers/xspfparser.cpp
@@ -37,7 +37,7 @@
 #include "xmlparser.h"
 #include "xspfparser.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 class CollectionBackendInterface;
 
diff --git a/src/playlistparsers/xspfparser.h b/src/playlistparsers/xspfparser.h
index e65ff35cd..84a3014d1 100644
--- a/src/playlistparsers/xspfparser.h
+++ b/src/playlistparsers/xspfparser.h
@@ -51,7 +51,7 @@ class XSPFParser : public XMLParser {
 
   bool TryMagic(const QByteArray &data) const override;
 
-  SongList Load(QIODevice *device, const QString &playlist_path = ""_L1, const QDir &dir = QDir(), const bool collection_lookup = true) const override;
+  SongList Load(QIODevice *device, const QString &playlist_path = QLatin1String(""), const QDir &dir = QDir(), const bool collection_lookup = true) const override;
   void Save(const SongList &songs, QIODevice *device, const QDir &dir = QDir(), const PlaylistSettingsPage::PathType path_type = PlaylistSettingsPage::PathType::Automatic) const override;
 
  private:
diff --git a/src/qobuz/qobuzbaserequest.cpp b/src/qobuz/qobuzbaserequest.cpp
index a0780018d..09b1703c0 100644
--- a/src/qobuz/qobuzbaserequest.cpp
+++ b/src/qobuz/qobuzbaserequest.cpp
@@ -43,7 +43,7 @@
 #include "qobuzservice.h"
 #include "qobuzbaserequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 QobuzBaseRequest::QobuzBaseRequest(QobuzService *service, SharedPtr<NetworkAccessManager> network, QObject *parent)
     : QObject(parent),
diff --git a/src/qobuz/qobuzrequest.cpp b/src/qobuz/qobuzrequest.cpp
index d2204dbaa..21af81f4a 100644
--- a/src/qobuz/qobuzrequest.cpp
+++ b/src/qobuz/qobuzrequest.cpp
@@ -49,7 +49,7 @@
 #include "qobuzbaserequest.h"
 #include "qobuzrequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kMaxConcurrentArtistsRequests = 3;
diff --git a/src/qobuz/qobuzservice.cpp b/src/qobuz/qobuzservice.cpp
index 2c3846830..601891716 100644
--- a/src/qobuz/qobuzservice.cpp
+++ b/src/qobuz/qobuzservice.cpp
@@ -60,7 +60,7 @@
 #include "settings/settingsdialog.h"
 #include "settings/qobuzsettingspage.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_shared;
 
 const Song::Source QobuzService::kSource = Song::Source::Qobuz;
diff --git a/src/qobuz/qobuzstreamurlrequest.cpp b/src/qobuz/qobuzstreamurlrequest.cpp
index 272ede1a0..e317e3adf 100644
--- a/src/qobuz/qobuzstreamurlrequest.cpp
+++ b/src/qobuz/qobuzstreamurlrequest.cpp
@@ -43,7 +43,7 @@
 #include "qobuzbaserequest.h"
 #include "qobuzstreamurlrequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 QobuzStreamURLRequest::QobuzStreamURLRequest(QobuzService *service, SharedPtr<NetworkAccessManager> network, const QUrl &media_url, const uint id, QObject *parent)
     : QobuzBaseRequest(service, network, parent),
diff --git a/src/queue/queue.cpp b/src/queue/queue.cpp
index 0fbb67b56..1eb9a3532 100644
--- a/src/queue/queue.cpp
+++ b/src/queue/queue.cpp
@@ -40,7 +40,7 @@
 #include "playlist/playlist.h"
 #include "queue.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kRowsMimetype[] = "application/x-strawberry-queue-rows";
diff --git a/src/radios/radiomodel.cpp b/src/radios/radiomodel.cpp
index 2390c6c85..7fedcb927 100644
--- a/src/radios/radiomodel.cpp
+++ b/src/radios/radiomodel.cpp
@@ -39,7 +39,7 @@
 #include "radiomimedata.h"
 #include "radiochannel.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kTreeIconSize = 22;
diff --git a/src/radios/radioparadiseservice.cpp b/src/radios/radioparadiseservice.cpp
index 021d94d9d..7d30c977d 100644
--- a/src/radios/radioparadiseservice.cpp
+++ b/src/radios/radioparadiseservice.cpp
@@ -32,7 +32,7 @@
 #include "radioparadiseservice.h"
 #include "radiochannel.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kApiChannelsUrl[] = "https://api.radioparadise.com/api/list_streams";
diff --git a/src/radios/somafmservice.cpp b/src/radios/somafmservice.cpp
index 90c477c9d..081bf68bf 100644
--- a/src/radios/somafmservice.cpp
+++ b/src/radios/somafmservice.cpp
@@ -36,7 +36,7 @@
 #include "somafmservice.h"
 #include "radiochannel.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kApiChannelsUrl[] = "https://somafm.com/channels.json";
diff --git a/src/scrobbler/lastfmimport.cpp b/src/scrobbler/lastfmimport.cpp
index e74da508f..5dee93a78 100644
--- a/src/scrobbler/lastfmimport.cpp
+++ b/src/scrobbler/lastfmimport.cpp
@@ -48,7 +48,7 @@
 #include "scrobblingapi20.h"
 #include "lastfmscrobbler.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kRequestsDelay = 2000;
diff --git a/src/scrobbler/listenbrainzscrobbler.cpp b/src/scrobbler/listenbrainzscrobbler.cpp
index 77f8337d8..9ab2f0156 100644
--- a/src/scrobbler/listenbrainzscrobbler.cpp
+++ b/src/scrobbler/listenbrainzscrobbler.cpp
@@ -57,7 +57,7 @@
 #include "scrobblemetadata.h"
 #include "listenbrainzscrobbler.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const char *ListenBrainzScrobbler::kName = "ListenBrainz";
 const char *ListenBrainzScrobbler::kSettingsGroup = "ListenBrainz";
diff --git a/src/scrobbler/scrobblercache.cpp b/src/scrobbler/scrobblercache.cpp
index 9407f5e1d..48fba1629 100644
--- a/src/scrobbler/scrobblercache.cpp
+++ b/src/scrobbler/scrobblercache.cpp
@@ -43,7 +43,7 @@
 #include "scrobblercacheitem.h"
 
 using namespace std::chrono_literals;
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_shared;
 
 ScrobblerCache::ScrobblerCache(const QString &filename, QObject *parent)
diff --git a/src/scrobbler/scrobblingapi20.cpp b/src/scrobbler/scrobblingapi20.cpp
index 735c8a1e3..1bb201bb7 100644
--- a/src/scrobbler/scrobblingapi20.cpp
+++ b/src/scrobbler/scrobblingapi20.cpp
@@ -61,7 +61,7 @@
 #include "scrobblercacheitem.h"
 #include "scrobblemetadata.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const char *ScrobblingAPI20::kApiKey = "211990b4c96782c05d1536e7219eb56e";
 
diff --git a/src/settings/behavioursettingspage.cpp b/src/settings/behavioursettingspage.cpp
index 87e1a5d2d..91d26d6a9 100644
--- a/src/settings/behavioursettingspage.cpp
+++ b/src/settings/behavioursettingspage.cpp
@@ -46,7 +46,7 @@
 #include "behavioursettingspage.h"
 #include "ui_behavioursettingspage.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 class SettingsDialog;
 
diff --git a/src/settings/coverssettingspage.cpp b/src/settings/coverssettingspage.cpp
index de520abc1..f3017e16e 100644
--- a/src/settings/coverssettingspage.cpp
+++ b/src/settings/coverssettingspage.cpp
@@ -46,7 +46,7 @@
 #include "covermanager/coverprovider.h"
 #include "widgets/loginstatewidget.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const char *CoversSettingsPage::kSettingsGroup = "Covers";
 const char *CoversSettingsPage::kProviders = "providers";
diff --git a/src/settings/globalshortcutssettingspage.cpp b/src/settings/globalshortcutssettingspage.cpp
index 3b1a11094..acafde807 100644
--- a/src/settings/globalshortcutssettingspage.cpp
+++ b/src/settings/globalshortcutssettingspage.cpp
@@ -49,7 +49,7 @@
 #include "globalshortcutssettingspage.h"
 #include "ui_globalshortcutssettingspage.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const char *GlobalShortcutsSettingsPage::kSettingsGroup = "GlobalShortcuts";
 
diff --git a/src/smartplaylists/smartplaylistsearch.cpp b/src/smartplaylists/smartplaylistsearch.cpp
index b18b068c6..b9a724876 100644
--- a/src/smartplaylists/smartplaylistsearch.cpp
+++ b/src/smartplaylists/smartplaylistsearch.cpp
@@ -28,7 +28,7 @@
 
 #include "smartplaylistsearch.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 SmartPlaylistSearch::SmartPlaylistSearch() : search_type_(SearchType::And), sort_type_(SortType::Random), sort_field_(SmartPlaylistSearchTerm::Field::Title), limit_(-1), first_item_(0) { Reset(); }
 
diff --git a/src/smartplaylists/smartplaylistsearchterm.cpp b/src/smartplaylists/smartplaylistsearchterm.cpp
index 789127a71..026fd4519 100644
--- a/src/smartplaylists/smartplaylistsearchterm.cpp
+++ b/src/smartplaylists/smartplaylistsearchterm.cpp
@@ -29,7 +29,7 @@
 #include "smartplaylistsearchterm.h"
 #include "playlist/playlist.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 SmartPlaylistSearchTerm::SmartPlaylistSearchTerm() : field_(Field::Title), operator_(Operator::Equals), datetype_(DateType::Hour) {}
 
diff --git a/src/smartplaylists/smartplaylistsearchtermwidget.cpp b/src/smartplaylists/smartplaylistsearchtermwidget.cpp
index 7ff7e8d9c..69e340019 100644
--- a/src/smartplaylists/smartplaylistsearchtermwidget.cpp
+++ b/src/smartplaylists/smartplaylistsearchtermwidget.cpp
@@ -41,7 +41,7 @@
 #include "smartplaylistsearchtermwidgetoverlay.h"
 #include "ui_smartplaylistsearchtermwidget.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 SmartPlaylistSearchTermWidget::SmartPlaylistSearchTermWidget(SharedPtr<CollectionBackend> collection_backend, QWidget *parent)
     : QWidget(parent),
diff --git a/src/spotify/spotifybaserequest.cpp b/src/spotify/spotifybaserequest.cpp
index a3095e833..38eff02e9 100644
--- a/src/spotify/spotifybaserequest.cpp
+++ b/src/spotify/spotifybaserequest.cpp
@@ -39,7 +39,7 @@
 #include "spotifyservice.h"
 #include "spotifybaserequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 SpotifyBaseRequest::SpotifyBaseRequest(SpotifyService *service, NetworkAccessManager *network, QObject *parent)
     : QObject(parent),
diff --git a/src/spotify/spotifyrequest.cpp b/src/spotify/spotifyrequest.cpp
index 829a390b5..3fb677c93 100644
--- a/src/spotify/spotifyrequest.cpp
+++ b/src/spotify/spotifyrequest.cpp
@@ -45,7 +45,7 @@
 #include "spotifybaserequest.h"
 #include "spotifyrequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 const int kMaxConcurrentArtistsRequests = 1;
diff --git a/src/spotify/spotifyservice.cpp b/src/spotify/spotifyservice.cpp
index beabc52e2..d2fa30b49 100644
--- a/src/spotify/spotifyservice.cpp
+++ b/src/spotify/spotifyservice.cpp
@@ -65,7 +65,7 @@
 #include "settings/settingsdialog.h"
 #include "settings/spotifysettingspage.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 const Song::Source SpotifyService::kSource = Song::Source::Spotify;
 const char SpotifyService::kApiUrl[] = "https://api.spotify.com/v1";
diff --git a/src/streaming/streamingsearchmodel.cpp b/src/streaming/streamingsearchmodel.cpp
index 320d3de8b..4955cfe84 100644
--- a/src/streaming/streamingsearchmodel.cpp
+++ b/src/streaming/streamingsearchmodel.cpp
@@ -37,7 +37,7 @@
 #include "streamingsearchmodel.h"
 #include "streamingsearchview.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 StreamingSearchModel::StreamingSearchModel(StreamingServicePtr service, QObject *parent)
     : QStandardItemModel(parent),
diff --git a/src/streaming/streamingtabsview.cpp b/src/streaming/streamingtabsview.cpp
index 59bb0be57..c48c5dc23 100644
--- a/src/streaming/streamingtabsview.cpp
+++ b/src/streaming/streamingtabsview.cpp
@@ -46,7 +46,7 @@
 #include "streamingcollectionviewcontainer.h"
 #include "ui_streamingtabsview.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 StreamingTabsView::StreamingTabsView(Application *app, StreamingServicePtr service, const QString &settings_group, const SettingsDialog::Page settings_page, QWidget *parent)
     : QWidget(parent),
diff --git a/src/subsonic/subsonicbaserequest.cpp b/src/subsonic/subsonicbaserequest.cpp
index 34a004f0c..0c9e893ed 100644
--- a/src/subsonic/subsonicbaserequest.cpp
+++ b/src/subsonic/subsonicbaserequest.cpp
@@ -45,7 +45,7 @@
 
 #include "settings/subsonicsettingspage.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 SubsonicBaseRequest::SubsonicBaseRequest(SubsonicService *service, QObject *parent)
     : QObject(parent),
diff --git a/src/subsonic/subsonicrequest.cpp b/src/subsonic/subsonicrequest.cpp
index 2c48fecdf..4405b162c 100644
--- a/src/subsonic/subsonicrequest.cpp
+++ b/src/subsonic/subsonicrequest.cpp
@@ -50,7 +50,7 @@
 #include "subsonicbaserequest.h"
 #include "subsonicrequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kMaxConcurrentAlbumsRequests = 3;
diff --git a/src/subsonic/subsonicscrobblerequest.cpp b/src/subsonic/subsonicscrobblerequest.cpp
index 5cdc480d1..b00a25b7b 100644
--- a/src/subsonic/subsonicscrobblerequest.cpp
+++ b/src/subsonic/subsonicscrobblerequest.cpp
@@ -35,7 +35,7 @@
 #include "subsonicbaserequest.h"
 #include "subsonicscrobblerequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kMaxConcurrentScrobbleRequests = 3;
diff --git a/src/subsonic/subsonicservice.cpp b/src/subsonic/subsonicservice.cpp
index 9af5b12d3..22e80eed0 100644
--- a/src/subsonic/subsonicservice.cpp
+++ b/src/subsonic/subsonicservice.cpp
@@ -60,7 +60,7 @@
 #include "settings/settingsdialog.h"
 #include "settings/subsonicsettingspage.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_unique;
 using std::make_shared;
 
diff --git a/src/tagreader/tagreaderbase.cpp b/src/tagreader/tagreaderbase.cpp
index c14b00a64..90fb48aae 100644
--- a/src/tagreader/tagreaderbase.cpp
+++ b/src/tagreader/tagreaderbase.cpp
@@ -31,7 +31,7 @@
 #include "core/logging.h"
 #include "tagreaderbase.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 TagReaderBase::TagReaderBase() = default;
 TagReaderBase::~TagReaderBase() = default;
diff --git a/src/tagreader/tagreaderclient.cpp b/src/tagreader/tagreaderclient.cpp
index 1aa17b812..292f8c23b 100644
--- a/src/tagreader/tagreaderclient.cpp
+++ b/src/tagreader/tagreaderclient.cpp
@@ -49,7 +49,7 @@
 #include "tagreaderloadcoverimagereply.h"
 
 using std::dynamic_pointer_cast;
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 TagReaderClient *TagReaderClient::sInstance = nullptr;
 
diff --git a/src/tagreader/tagreadergme.cpp b/src/tagreader/tagreadergme.cpp
index 3a8cd8dbe..fda05118a 100644
--- a/src/tagreader/tagreadergme.cpp
+++ b/src/tagreader/tagreadergme.cpp
@@ -33,7 +33,7 @@
 #include "tagreaderbase.h"
 #include "tagreadertaglib.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 #undef TStringToQString
 #undef QStringToTString
diff --git a/src/tagreader/tagreadertaglib.cpp b/src/tagreader/tagreadertaglib.cpp
index 7ffd4135d..8b43ac45d 100644
--- a/src/tagreader/tagreadertaglib.cpp
+++ b/src/tagreader/tagreadertaglib.cpp
@@ -101,7 +101,7 @@
 #include "albumcovertagdata.h"
 
 using std::unique_ptr;
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 #undef TStringToQString
 #undef QStringToTString
diff --git a/src/tidal/tidalbaserequest.cpp b/src/tidal/tidalbaserequest.cpp
index 9fef9d4bf..8ba39daeb 100644
--- a/src/tidal/tidalbaserequest.cpp
+++ b/src/tidal/tidalbaserequest.cpp
@@ -40,7 +40,7 @@
 #include "tidalservice.h"
 #include "tidalbaserequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 TidalBaseRequest::TidalBaseRequest(TidalService *service, SharedPtr<NetworkAccessManager> network, QObject *parent)
     : QObject(parent),
diff --git a/src/tidal/tidalfavoriterequest.cpp b/src/tidal/tidalfavoriterequest.cpp
index bdc358619..3e968e17f 100644
--- a/src/tidal/tidalfavoriterequest.cpp
+++ b/src/tidal/tidalfavoriterequest.cpp
@@ -39,7 +39,7 @@
 #include "tidalbaserequest.h"
 #include "tidalfavoriterequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 TidalFavoriteRequest::TidalFavoriteRequest(TidalService *service, SharedPtr<NetworkAccessManager> network, QObject *parent)
     : TidalBaseRequest(service, network, parent),
diff --git a/src/tidal/tidalrequest.cpp b/src/tidal/tidalrequest.cpp
index 581b67f78..54c94848c 100644
--- a/src/tidal/tidalrequest.cpp
+++ b/src/tidal/tidalrequest.cpp
@@ -49,7 +49,7 @@
 #include "tidalbaserequest.h"
 #include "tidalrequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr char kResourcesUrl[] = "https://resources.tidal.com";
diff --git a/src/tidal/tidalservice.cpp b/src/tidal/tidalservice.cpp
index 2378b19f0..13aab995b 100644
--- a/src/tidal/tidalservice.cpp
+++ b/src/tidal/tidalservice.cpp
@@ -66,7 +66,7 @@
 #include "settings/tidalsettingspage.h"
 
 using namespace std::chrono_literals;
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_shared;
 
 const Song::Source TidalService::kSource = Song::Source::Tidal;
diff --git a/src/tidal/tidalstreamurlrequest.cpp b/src/tidal/tidalstreamurlrequest.cpp
index 117185549..e294ecb4e 100644
--- a/src/tidal/tidalstreamurlrequest.cpp
+++ b/src/tidal/tidalstreamurlrequest.cpp
@@ -42,7 +42,7 @@
 #include "tidalbaserequest.h"
 #include "tidalstreamurlrequest.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 TidalStreamURLRequest::TidalStreamURLRequest(TidalService *service, SharedPtr<NetworkAccessManager> network, const QUrl &media_url, const uint id, QObject *parent)
     : TidalBaseRequest(service, network, parent),
diff --git a/src/transcoder/transcodedialog.cpp b/src/transcoder/transcodedialog.cpp
index ab52aa28c..d8d93de77 100644
--- a/src/transcoder/transcodedialog.cpp
+++ b/src/transcoder/transcodedialog.cpp
@@ -67,7 +67,7 @@
 #include "ui_transcodedialog.h"
 #include "ui_transcodelogdialog.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 // winspool.h defines this :(
 #ifdef AddJob
diff --git a/src/transcoder/transcoder.cpp b/src/transcoder/transcoder.cpp
index 561b59694..482b01d8c 100644
--- a/src/transcoder/transcoder.cpp
+++ b/src/transcoder/transcoder.cpp
@@ -48,7 +48,7 @@
 #include "core/settings.h"
 #include "transcoder.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_shared;
 
 int Transcoder::JobFinishedEvent::sEventType = -1;
diff --git a/src/transcoder/transcoder.h b/src/transcoder/transcoder.h
index 0d12cbd75..45de3a441 100644
--- a/src/transcoder/transcoder.h
+++ b/src/transcoder/transcoder.h
@@ -39,8 +39,6 @@
 #include "core/shared_ptr.h"
 #include "core/song.h"
 
-using namespace Qt::Literals::StringLiterals;
-
 struct TranscoderPreset {
   explicit TranscoderPreset() : filetype_(Song::FileType::Unknown) {}
   TranscoderPreset(const Song::FileType filetype, const QString &name, const QString &extension, const QString &codec_mimetype, const QString &muxer_mimetype_ = QString());
@@ -57,7 +55,7 @@ class Transcoder : public QObject {
   Q_OBJECT
 
  public:
-  explicit Transcoder(QObject *parent = nullptr, const QString &settings_postfix = ""_L1);
+  explicit Transcoder(QObject *parent = nullptr, const QString &settings_postfix = QLatin1String(""));
 
   static TranscoderPreset PresetForFileType(const Song::FileType filetype);
   static QList<TranscoderPreset> GetAllPresets();
diff --git a/src/utilities/coverutils.cpp b/src/utilities/coverutils.cpp
index b9a029f61..0e6ad81e3 100644
--- a/src/utilities/coverutils.cpp
+++ b/src/utilities/coverutils.cpp
@@ -31,7 +31,7 @@
 #include "coverutils.h"
 #include "core/logging.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 QByteArray CoverUtils::Sha1CoverHash(const QString &artist, const QString &album) {
 
diff --git a/src/utilities/envutils.cpp b/src/utilities/envutils.cpp
index bc1b51ccf..46b668854 100644
--- a/src/utilities/envutils.cpp
+++ b/src/utilities/envutils.cpp
@@ -26,7 +26,7 @@
 
 #include "envutils.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace Utilities {
 
diff --git a/src/utilities/filemanagerutils.cpp b/src/utilities/filemanagerutils.cpp
index 0b7098b18..bcca3aea6 100644
--- a/src/utilities/filemanagerutils.cpp
+++ b/src/utilities/filemanagerutils.cpp
@@ -34,7 +34,7 @@
 
 #include "filemanagerutils.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace Utilities {
 
diff --git a/src/utilities/macaddrutils.cpp b/src/utilities/macaddrutils.cpp
index 1c7ec45ed..9e5c9eed3 100644
--- a/src/utilities/macaddrutils.cpp
+++ b/src/utilities/macaddrutils.cpp
@@ -23,7 +23,7 @@
 
 #include "macaddrutils.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace Utilities {
 
diff --git a/src/utilities/strutils.cpp b/src/utilities/strutils.cpp
index f3d4b4afe..d315bbe61 100644
--- a/src/utilities/strutils.cpp
+++ b/src/utilities/strutils.cpp
@@ -27,7 +27,7 @@
 #include "strutils.h"
 #include "core/song.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace Utilities {
 
diff --git a/src/widgets/fancytabbar.cpp b/src/widgets/fancytabbar.cpp
index f8e0b67a5..9cd21762a 100644
--- a/src/widgets/fancytabbar.cpp
+++ b/src/widgets/fancytabbar.cpp
@@ -37,7 +37,7 @@
 #include "fancytabwidget.h"
 #include "fancytabdata.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int TabSize_LargeSidebarMinWidth = 70;
diff --git a/src/widgets/fancytabwidget.cpp b/src/widgets/fancytabwidget.cpp
index e208411c0..c2fe4ab91 100644
--- a/src/widgets/fancytabwidget.cpp
+++ b/src/widgets/fancytabwidget.cpp
@@ -49,7 +49,7 @@
 #include "settings/appearancesettingspage.h"
 
 using namespace std::chrono_literals;
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int IconSize_LargeSidebar = 40;
diff --git a/src/widgets/multiloadingindicator.cpp b/src/widgets/multiloadingindicator.cpp
index daec78e72..b7cbea23a 100644
--- a/src/widgets/multiloadingindicator.cpp
+++ b/src/widgets/multiloadingindicator.cpp
@@ -34,7 +34,7 @@
 #include "multiloadingindicator.h"
 #include "widgets/busyindicator.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 namespace {
 constexpr int kVerticalPadding = 4;
diff --git a/src/widgets/playingwidget.cpp b/src/widgets/playingwidget.cpp
index 008d374d7..eec2da735 100644
--- a/src/widgets/playingwidget.cpp
+++ b/src/widgets/playingwidget.cpp
@@ -45,7 +45,7 @@
 #include "covermanager/albumcoverchoicecontroller.h"
 #include "playingwidget.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_unique;
 
 namespace {
diff --git a/tests/src/collectionbackend_test.cpp b/tests/src/collectionbackend_test.cpp
index 5fc6c4d0c..eb2729bbc 100644
--- a/tests/src/collectionbackend_test.cpp
+++ b/tests/src/collectionbackend_test.cpp
@@ -36,7 +36,7 @@
 #include "collection/collectionbackend.h"
 #include "collection/collection.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_unique;
 using std::make_shared;
 
diff --git a/tests/src/collectionmodel_test.cpp b/tests/src/collectionmodel_test.cpp
index 78c68b974..daaf6241a 100644
--- a/tests/src/collectionmodel_test.cpp
+++ b/tests/src/collectionmodel_test.cpp
@@ -39,7 +39,7 @@
 #include "collection/collectionmodel.h"
 #include "collection/collectionfilter.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 using std::make_unique;
 using std::make_shared;
 
diff --git a/tests/src/organizeformat_test.cpp b/tests/src/organizeformat_test.cpp
index 65f491c39..c032547e5 100644
--- a/tests/src/organizeformat_test.cpp
+++ b/tests/src/organizeformat_test.cpp
@@ -29,7 +29,7 @@
 
 #include <QUrl>
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 // clazy:excludeall=returning-void-expression
 
diff --git a/tests/src/tagreader_test.cpp b/tests/src/tagreader_test.cpp
index b4cf4a751..8616986fa 100644
--- a/tests/src/tagreader_test.cpp
+++ b/tests/src/tagreader_test.cpp
@@ -35,7 +35,7 @@
 #include "test_utils.h"
 
 using std::make_shared;
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 // clazy:excludeall=non-pod-global-static
 
diff --git a/tests/src/utilities_test.cpp b/tests/src/utilities_test.cpp
index 01e0888de..17803d09b 100644
--- a/tests/src/utilities_test.cpp
+++ b/tests/src/utilities_test.cpp
@@ -38,7 +38,7 @@
 #include "core/logging.h"
 #include "core/temporaryfile.h"
 
-using namespace Qt::StringLiterals;
+using namespace Qt::Literals::StringLiterals;
 
 TEST(UtilitiesTest, PrettyTimeDelta) {