diff --git a/resources/desktop/com.github.rssguard.appdata.xml b/resources/desktop/com.github.rssguard.appdata.xml
index 35c9cce90..4010dd183 100755
--- a/resources/desktop/com.github.rssguard.appdata.xml
+++ b/resources/desktop/com.github.rssguard.appdata.xml
@@ -30,7 +30,7 @@
   <url type="donation">https://martinrotter.github.io/donate/</url>
   <content_rating type="oars-1.1" />
   <releases>
-    <release version="3.5.7" date="2019-04-10"/>
+    <release version="3.5.7" date="2019-04-11"/>
   </releases>
   <content_rating type="oars-1.0">
     <content_attribute id="violence-cartoon">none</content_attribute>
diff --git a/src/core/messagesmodel.cpp b/src/core/messagesmodel.cpp
index c7406d958..c3618edb6 100755
--- a/src/core/messagesmodel.cpp
+++ b/src/core/messagesmodel.cpp
@@ -85,7 +85,7 @@ void MessagesModel::loadMessages(RootItem* item) {
   }
   else {
     if (!item->getParentServiceRoot()->loadMessagesForItem(item, this)) {
-      setFilter(QSL("true != true"));
+      setFilter(QSL(DEFAULT_SQL_MESSAGES_FILTER));
       qWarning("Loading of messages from item '%s' failed.", qPrintable(item->title()));
       qApp->showGuiMessage(tr("Loading of messages from item '%1' failed.").arg(item->title()),
                            tr("Loading of messages failed, maybe messages could not be downloaded."),
@@ -500,7 +500,7 @@ bool MessagesModel::setBatchMessagesRead(const QModelIndexList& messages, RootIt
 
     msgs.append(msg);
     message_ids.append(QString::number(msg.m_id));
-    setData(index(message.row(), MSG_DB_READ_INDEX), (int) read);
+    setData(index(message.row(), MSG_DB_READ_INDEX), int(read));
   }
 
   reloadWholeLayout();
diff --git a/src/core/messagesmodelsqllayer.cpp b/src/core/messagesmodelsqllayer.cpp
index 3e1dbd454..8d655b45d 100755
--- a/src/core/messagesmodelsqllayer.cpp
+++ b/src/core/messagesmodelsqllayer.cpp
@@ -87,8 +87,9 @@ QString MessagesModelSqlLayer::formatFields() const {
 }
 
 QString MessagesModelSqlLayer::selectStatement() const {
-  return QL1S("SELECT ") + formatFields() +
-         QSL(" FROM Messages LEFT JOIN Feeds ON Messages.feed = Feeds.custom_id AND Messages.account_id = Feeds.account_id WHERE ") +
+  return QL1S("SELECT ") + formatFields() + QL1C(' ') +
+         QL1S("FROM Messages LEFT JOIN Feeds ON Messages.feed = Feeds.custom_id AND Messages.account_id = Feeds.account_id "
+              "WHERE ") +
          m_filter + orderByClause() + QL1C(';');
 }
 
diff --git a/src/definitions/definitions.h b/src/definitions/definitions.h
index 3b0473c0d..d31cf5848 100755
--- a/src/definitions/definitions.h
+++ b/src/definitions/definitions.h
@@ -91,8 +91,8 @@
 
 #define FEED_INITIAL_OPML_PATTERN             "feeds-%1.opml"
 
-#define FEED_REGEX_MATCHER                    "<link[^>]+type=\\\"application/(atom|rss)\\+xml\\\"[^>]*>"
-#define FEED_HREF_REGEX_MATCHER               "href\\=\\\"[^\\\"]+\\\""
+#define FEED_REGEX_MATCHER                    "<link[^>]+type=\"application\\/(?:atom|rss)\\+xml\"[^>]*>"
+#define FEED_HREF_REGEX_MATCHER               "href=\"([^\"]+)\""
 
 #define PLACEHOLDER_UNREAD_COUNTS   "%unread"
 #define PLACEHOLDER_ALL_COUNTS      "%all"
diff --git a/src/network-web/networkfactory.cpp b/src/network-web/networkfactory.cpp
index 50eafcbdf..9665737bf 100755
--- a/src/network-web/networkfactory.cpp
+++ b/src/network-web/networkfactory.cpp
@@ -10,6 +10,7 @@
 #include <QEventLoop>
 #include <QIcon>
 #include <QPixmap>
+#include <QRegularExpression>
 #include <QTextDocument>
 #include <QTimer>
 
@@ -17,25 +18,26 @@ NetworkFactory::NetworkFactory() {}
 
 QStringList NetworkFactory::extractFeedLinksFromHtmlPage(const QUrl& url, const QString& html) {
   QStringList feeds;
-  const QRegExp rx(FEED_REGEX_MATCHER, Qt::CaseInsensitive);
-  const QRegExp rx_href(FEED_HREF_REGEX_MATCHER, Qt::CaseInsensitive);
+  QRegularExpression rx(FEED_REGEX_MATCHER, QRegularExpression::PatternOption::CaseInsensitiveOption);
+  QRegularExpression rx_href(FEED_HREF_REGEX_MATCHER, QRegularExpression::PatternOption::CaseInsensitiveOption);
 
-  for (int pos = 0; (pos = rx.indexIn(html, pos)) != -1; pos += rx.matchedLength()) {
-    QString link_element = html.mid(pos, rx.matchedLength());
+  rx_href.optimize();
 
-    if (rx_href.indexIn(link_element) != -1) {
-      QString href_attribute = rx_href.capturedTexts().at(0);
-      QString feed_link = href_attribute.mid(6, href_attribute.size() - 7);
+  QRegularExpressionMatchIterator it_rx = rx.globalMatch(html);
 
-      if (feed_link.startsWith(QL1S("//"))) {
-        feed_link = QString(URI_SCHEME_HTTP) + feed_link.mid(2);
-      }
-      else if (feed_link.startsWith(QL1C('/'))) {
-        feed_link = url.toString(QUrl::RemovePath | QUrl::RemoveQuery | QUrl::StripTrailingSlash) + feed_link;
-      }
+  while (it_rx.hasNext()) {
+    QRegularExpressionMatch mat_tx = it_rx.next();
+    QString link_tag = mat_tx.captured();
+    QString feed_link = rx_href.match(link_tag).captured(1);
 
-      feeds.append(feed_link);
+    if (feed_link.startsWith(QL1S("//"))) {
+      feed_link = QString(URI_SCHEME_HTTP) + feed_link.mid(2);
     }
+    else if (feed_link.startsWith(QL1C('/'))) {
+      feed_link = url.toString(QUrl::RemovePath | QUrl::RemoveQuery | QUrl::StripTrailingSlash) + feed_link;
+    }
+
+    feeds.append(feed_link);
   }
 
   return feeds;
diff --git a/src/services/abstract/serviceroot.cpp b/src/services/abstract/serviceroot.cpp
index 3b2dfb1d9..78faf7f7b 100755
--- a/src/services/abstract/serviceroot.cpp
+++ b/src/services/abstract/serviceroot.cpp
@@ -538,12 +538,13 @@ bool ServiceRoot::onAfterMessagesDelete(RootItem* selected_item, const QList<Mes
 
   // User deleted some messages he selected in message list.
   selected_item->updateCounts(true);
-  RecycleBin* bin = recycleBin();
 
   if (selected_item->kind() == RootItemKind::Bin) {
-    itemChanged(QList<RootItem*>() << bin);
+    itemChanged(QList<RootItem*>() << selected_item);
   }
   else {
+    RecycleBin* bin = recycleBin();
+
     if (bin != nullptr) {
       bin->updateCounts(true);
       itemChanged(QList<RootItem*>() << selected_item << bin);
diff --git a/src/services/standard/standardfeed.cpp b/src/services/standard/standardfeed.cpp
index 41fef3248..ffb0c84f2 100755
--- a/src/services/standard/standardfeed.cpp
+++ b/src/services/standard/standardfeed.cpp
@@ -155,23 +155,21 @@ QPair<StandardFeed*, QNetworkReply::NetworkError> StandardFeed::guessFeed(const
   result.second = network_result.first;
 
   if (result.second == QNetworkReply::NoError || !feed_contents.isEmpty()) {
+    if (result.first == nullptr) {
+      result.first = new StandardFeed();
+    }
+
     // Feed XML was obtained, now we need to try to guess
     // its encoding before we can read further data.
     QString xml_schema_encoding;
     QString xml_contents_encoded;
-    QRegExp encoding_rexp(QSL("encoding=\"[^\"]\\S+\""));
+    QString enc = QRegularExpression(QSL("encoding=\"([A-Z0-9\\-]+)\""),
+                                     QRegularExpression::PatternOption::CaseInsensitiveOption).match(feed_contents).captured(1);
 
-    if (encoding_rexp.indexIn(feed_contents) != -1 &&
-        !(xml_schema_encoding = encoding_rexp.cap(0)).isEmpty()) {
+    if (!enc.isEmpty()) {
       // Some "encoding" attribute was found get the encoding
       // out of it.
-      encoding_rexp.setPattern(QSL("[^\"]\\S+[^\"]"));
-      encoding_rexp.indexIn(xml_schema_encoding, 9);
-      xml_schema_encoding = encoding_rexp.cap(0);
-    }
-
-    if (result.first == nullptr) {
-      result.first = new StandardFeed();
+      xml_schema_encoding = enc;
     }
 
     QTextCodec* custom_codec = QTextCodec::codecForName(xml_schema_encoding.toLocal8Bit());