diff --git a/debian/changelog b/debian/changelog
index 25c42a2..460a3e5 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,12 @@
+qtermwidget (0.7.1-3) unstable; urgency=medium
+
+  * Bumped Standards to 4.0.0 - no changes needed
+  * Added 5 optional symbols (Closes: #853632)
+  * Added build dependency lxqt-build-tools
+  * Added Recommends: qtermwidget-l10n, fonts-hack-ttf
+
+ -- Alf Gaida <agaida@siduction.org>  Mon, 03 Jul 2017 00:45:55 +0200
+
 qtermwidget (0.7.1-2) unstable; urgency=medium
 
   * Added build-dependency libutf8proc-dev as the missed part for
diff --git a/debian/control b/debian/control
index 7397811..325772b 100644
--- a/debian/control
+++ b/debian/control
@@ -8,8 +8,9 @@ Priority: optional
 Build-Depends: debhelper (>= 10),
                cmake (>= 3.0.2),
                libutf8proc-dev,
+               lxqt-build-tools (>= 0.3.2),
                qtbase5-dev
-Standards-Version: 3.9.8
+Standards-Version: 4.0.0
 Vcs-Browser: https://anonscm.debian.org/git/pkg-lxqt/qtermwidget.git/?h=debian/sid
 Vcs-Git: https://anonscm.debian.org/git/pkg-lxqt/qtermwidget.git -b debian/sid
 Homepage: https://github.com/lxde/qtermwidget
@@ -21,6 +22,8 @@ Depends: ${shlibs:Depends},
          ${misc:Depends},
          qtermwidget5-data (= ${source:Version}),
 Pre-Depends: ${misc:Pre-Depends}
+Recommends: qtermwidget-l10n,
+            fonts-hack-ttf
 Description: Terminal emulator widget for Qt 5 (shared libraries)
  QTermWidget is a Unicode-enabled, embeddable Qt widget that can be used as
  built-in console or terminal emulation widget.
diff --git a/debian/libqtermwidget5-0.symbols b/debian/libqtermwidget5-0.symbols
index 6008209..2b34bfd 100644
--- a/debian/libqtermwidget5-0.symbols
+++ b/debian/libqtermwidget5-0.symbols
@@ -973,8 +973,10 @@ libqtermwidget5.so.0 libqtermwidget5-0 #MINVER#
  (optional|c++)"QList<int>::append(int const&)@Base" 0.6.0
  (optional|c++)"QList<int>::detach_helper_grow(int, int)@Base" 0.6.0
  (optional|c++)"QList<int>::~QList()@Base" 0.6.0
+ (optional|c++)"QList<int>::QList(QList<int> const&)@Base" 0.7.1
  (optional|c++)"QList<Konsole::ColorScheme const*>::detach_helper_grow(int, int)@Base" 0.6.0
  (c++)"QList<Konsole::ColorScheme const*>::~QList()@Base" 0.6.0
+ (optional|c++)"QList<Konsole::ColorScheme const*>::QList(QList<Konsole::ColorScheme const*> const&)@Base" 0.7.1
  (optional|c++)"QList<Konsole::CompactHistoryBlock*>::append(Konsole::CompactHistoryBlock* const&)@Base" 0.6.0
  (c++)"QList<Konsole::CompactHistoryBlock*>::detach_helper_grow(int, int)@Base" 0.6.0
  (optional|c++)"QList<Konsole::CompactHistoryBlock*>::detach_helper(int)@Base" 0.6.0
@@ -1120,14 +1122,17 @@ libqtermwidget5.so.0 libqtermwidget5-0 #MINVER#
  (c++)"QtPrivate::QSlotObject<void (Konsole::UrlFilter::*)(QUrl const&, bool), QtPrivate::List<QUrl const&, bool>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*)@Base" 0.7.1
  (c++)"QtPrivate::QSlotObject<void (QTermWidget::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*)@Base" 0.7.0
  (c++)"QtPrivate::QSlotObject<void (QTermWidget::*)(QUrl const&, bool), QtPrivate::List<QUrl const&, bool>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*)@Base" 0.7.1
+ (optional|c++)"QVarLengthArray<unsigned char, 64>::QVarLengthArray(int)@Base" 0.7.1
  (c++)"QVarLengthArray<unsigned char, 64>::realloc(int, int)@Base" 0.6.0
  (c++)"QVector<Konsole::Character>::insert(Konsole::Character*, int, Konsole::Character const&)@Base" 0.6.0
  (c++)"QVector<Konsole::Character>::operator=(QVector<Konsole::Character> const&)@Base" 0.6.0
  (c++)"QVector<Konsole::Character>::~QVector()@Base" 0.6.0
  (optional|c++)"QVector<Konsole::Character>::QVector(int)@Base" 0.6.0
+ (optional|c++)"QVector<Konsole::Character>::QVector(QVector<Konsole::Character> const&)@Base" 0.7.1
  (c++)"QVector<Konsole::Character>::reallocData(int, int, QFlags<QArrayData::AllocationOption>)@Base" 0.6.0
  (optional|c++)"QVector<Konsole::Character>::resize(int)@Base" 0.6.0
  (optional|c++)"QVector<QRect>::~QVector()@Base" 0.6.0
+ (optional|c++)"QVector<QRect>::QVector(QVector<QRect> const&)@Base" 0.7.1
  (optional|c++)"QVector<unsigned char>::~QVector()@Base" 0.6.0
  (optional|c++)"QVector<unsigned char>::reallocData(int, int, QFlags<QArrayData::AllocationOption>)@Base" 0.6.0
  createTermWidget@Base 0.6.0