diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3c462d39..1e42a5da 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,288 +1,288 @@
 cmake_minimum_required(VERSION 3.0 FATAL_ERROR)
 
 # KDE Application Version, managed by release script
 set (KDE_APPLICATIONS_VERSION_MAJOR "18")
 set (KDE_APPLICATIONS_VERSION_MINOR "07")
 set (KDE_APPLICATIONS_VERSION_MICRO "70")
 set (KDE_APPLICATIONS_VERSION "${KDE_APPLICATIONS_VERSION_MAJOR}.${KDE_APPLICATIONS_VERSION_MINOR}.${KDE_APPLICATIONS_VERSION_MICRO}")
 
 project(kgpg VERSION ${KDE_APPLICATIONS_VERSION})
-set(QT_MIN_VERSION "5.5.0")
+set(QT_MIN_VERSION "5.9.0")
 
 find_package(ECM 5.21 REQUIRED NO_MODULE)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake/")
 
 include(ECMAddAppIcon)
 include(ECMInstallIcons)
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(KDECompilerSettings NO_POLICY_SCOPE)
 include(FeatureSummary)
 include(ECMSetupVersion)
 include(CMakeFindDependencyMacro)
 
 find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS
   Core
   DBus
   Gui
   PrintSupport
   Widgets
 )
 
 # Load the frameworks we need
 find_package(KF5 5.28 REQUIRED
   Archive
   DocTools
   Codecs
   CoreAddons
   Crash
   DBusAddons
   I18n
   IconThemes
   JobWidgets
   KIO
   Notifications
   Service
   TextWidgets
   XmlGui
   WidgetsAddons
   WindowSystem
 )
 
 # kdepimlibs
 find_package(KF5 REQUIRED
   AkonadiContact
   Contacts
 )
 
 # only headers are used
 find_package(Gpgme REQUIRED)
 
 add_definitions(-DQT_NO_URL_CAST_FROM_STRING)
 
 add_subdirectory( icons )
 add_subdirectory( doc )
 include_directories(  ${KDEPIMLIBS_INCLUDE_DIR} ${GPGME_INCLUDES} )
 
 option(KGPG_DEBUG_TRANSACTIONS "show commands and results of gpg calls in debug log" Off)
 
 set(core_SRCS
    core/convert.cpp
    core/images.cpp
    core/emailvalidator.cpp
    core/kgpgkey.cpp
    core/KGpgExpandableNode.cpp
    core/KGpgKeyNode.cpp
    core/KGpgGroupMemberNode.cpp
    core/KGpgGroupNode.cpp
    core/KGpgNode.cpp
    core/KGpgOrphanNode.cpp
    core/KGpgRefNode.cpp
    core/KGpgRootNode.cpp
    core/KGpgSignableNode.cpp
    core/KGpgSignNode.cpp
    core/KGpgSubkeyNode.cpp
    core/KGpgUatNode.cpp
    core/KGpgUidNode.cpp
 )
 
 set(kgpg_editor_SRCS
    editor/kgpgmd5widget.cpp
    editor/kgpgeditor.cpp
    editor/kgpgtextedit.cpp
 )
 
 set(kgpg_model_SRCS
    model/gpgservermodel.cpp
    model/kgpgitemmodel.cpp
    model/groupeditproxymodel.cpp
    model/keylistproxymodel.cpp
    model/kgpgsearchresultmodel.cpp
    model/selectkeyproxymodel.cpp
 )
 
 set(kgpg_transaction_SRCS
    transactions/kgpgtransaction.cpp
    transactions/kgpgtransactionjob.cpp
    transactions/kgpgtransactionprivate.cpp
    transactions/kgpguidtransaction.cpp
    transactions/kgpgeditkeytransaction.cpp
    transactions/kgpgsigntransactionhelper.cpp
    transactions/kgpgchangedisable.cpp
    transactions/kgpgchangeexpire.cpp
    transactions/kgpgchangepass.cpp
    transactions/kgpgchangetrust.cpp
    transactions/kgpgdelsign.cpp
    transactions/kgpgdeluid.cpp
    transactions/kgpgencrypt.cpp
    transactions/kgpgexport.cpp
    transactions/kgpgaddphoto.cpp
    transactions/kgpgadduid.cpp
    transactions/kgpggeneratekey.cpp
    transactions/kgpggeneraterevoke.cpp
    transactions/kgpgdecrypt.cpp
    transactions/kgpgdelkey.cpp
    transactions/kgpgimport.cpp
    transactions/kgpgkeyservertransaction.cpp
    transactions/kgpgkeyservergettransaction.cpp
    transactions/kgpgkeyserversearchtransaction.cpp
    transactions/kgpgprimaryuid.cpp
    transactions/kgpgsendkeys.cpp
    transactions/kgpgsignkey.cpp
    transactions/kgpgsigntext.cpp
    transactions/kgpgsignuid.cpp
    transactions/kgpgtextorfiletransaction.cpp
    transactions/kgpgverify.cpp
 )
 
 set(kgpg_SRCS ${core_SRCS} ${kgpg_editor_SRCS} ${kgpg_model_SRCS} ${kgpg_transaction_SRCS}
    selectpublickeydialog.cpp
    selectsecretkey.cpp
    kgpgoptions.cpp
    keysmanager.cpp
    kgpg.cpp
    kgpg_debug.cpp
    kgpgkeygenerate.cpp
    kgpginterface.cpp
    kgpgtextinterface.cpp
    gpgproc.cpp
    klinebufferedprocess.cpp
    klinebufferedprocessprivate.cpp
    keyservers.cpp
    detailedconsole.cpp
    keyinfodialog.cpp
    newkey.cpp
    keyexport.cpp
    conf_encryption.cpp
    kgpgrevokewidget.cpp
    keytreeview.cpp
    groupedit.cpp
    sourceselect.cpp
    kgpgchangekey.cpp
    kgpgfirstassistant.cpp
    kgpgexternalactions.cpp
    selectexpirydate.cpp
    caff.cpp
    foldercompressjob.cpp
 )
 
 set(kgpg_HDRS
    caff.h
    caff_p.h
    conf_encryption.h
    detailedconsole.h
    foldercompressjob.h
    gpgproc.h
    groupedit.h
    keyexport.h
    keyinfodialog.h
    keyservers.h
    keysmanager.h
    keytreeview.h
    kgpg.h
    kgpgchangekey.h
    kgpgexternalactions.h
    kgpgfirstassistant.h
    kgpginterface.h
    kgpgkeygenerate.h
    kgpgoptions.h
    kgpgrevokewidget.h
    kgpgtextinterface.h
    kgpg_debug.h
    klinebufferedprocess.h
    newkey.h
    selectexpirydate.h
    selectpublickeydialog.h
    selectsecretkey.h
    sourceselect.h
 )
 
 qt5_add_dbus_adaptor( kgpg_SRCS org.kde.kgpg.Key.xml keysmanager.h KeysManager)
 
 qt5_add_dbus_interface(kgpg_SRCS org.kde.kgpg.Key.xml kgpg_interface )
 
 ki18n_wrap_ui(kgpg_SRCS
     adduid.ui
     conf_gpg.ui
     searchres.ui
     groupedit.ui
     conf_ui2.ui
     conf_servers.ui
     conf_misc.ui
     newkey.ui
     keyexport.ui
     conf_encryption.ui
     kgpgKeyInfo.ui
     kgpgkeygenerate.ui
     kgpgrevokewidget.ui
     keyserver.ui
     conf_decryption.ui
     sourceselect.ui
 )
 
 file(GLOB ICONS_SRCS "${CMAKE_CURRENT_SOURCE_DIR}/*-apps-kgpg.png")
 ecm_add_app_icon(kgpg_SRCS ICONS ${ICONS_SRCS})
 
 kconfig_add_kcfg_files(kgpg_SRCS kgpgsettings.kcfgc )
 
 add_library(kgpg_lib STATIC ${kgpg_SRCS} ${kgpg_HDRS})
 add_executable(kgpg main.cpp)
 target_link_libraries(kgpg kgpg_lib)
 
 if (KGPG_DEBUG_TRANSACTIONS)
 	set_property(SOURCE ${kgpg_transaction_SRCS} APPEND PROPERTY COMPILE_DEFINITIONS "KGPG_DEBUG_TRANSACTIONS")
 endif (KGPG_DEBUG_TRANSACTIONS)
 
 set_property(SOURCE main.cpp APPEND PROPERTY COMPILE_DEFINITIONS "KGPG_VERSION=\"${KDE_APPLICATIONS_VERSION}\"")
 
 target_link_libraries(kgpg_lib
     KF5::AkonadiContact
     KF5::Archive
     KF5::Codecs
     KF5::Contacts
     KF5::CoreAddons
     KF5::Crash
     KF5::DBusAddons
     KF5::I18n
     KF5::IconThemes
     KF5::JobWidgets
     KF5::KIOCore
     KF5::KIOFileWidgets
     KF5::KIOWidgets
     KF5::Notifications
     KF5::Service
     KF5::TextWidgets
     KF5::XmlGui
     KF5::WidgetsAddons
     KF5::WindowSystem
     Qt5::PrintSupport
 )
 
 add_subdirectory(tests)
 install(TARGETS kgpg  ${INSTALL_TARGETS_DEFAULT_ARGS} )
 
 ########### install files ###############
 
 install( FILES editor/kgpgeditor.rc keysmanager.rc DESTINATION ${KXMLGUI_INSTALL_DIR}/kgpg)
 install( FILES tips  DESTINATION ${DATA_INSTALL_DIR}/kgpg)
 install( PROGRAMS org.kde.kgpg.desktop  DESTINATION ${XDG_APPS_INSTALL_DIR})
 install( FILES org.kde.kgpg.appdata.xml  DESTINATION ${KDE_INSTALL_METAINFODIR})
 install( FILES kgpg.kcfg  DESTINATION ${KCFG_INSTALL_DIR})
 install( FILES org.kde.kgpg.desktop  DESTINATION ${AUTOSTART_INSTALL_DIR} )
 install( FILES encryptfile.desktop encryptfolder.desktop viewdecrypted.desktop DESTINATION
 ${SERVICES_INSTALL_DIR}/ServiceMenus)
 install( FILES org.kde.kgpg.Key.xml DESTINATION ${DBUS_INTERFACES_INSTALL_DIR})
 
 ecm_install_icons(ICONS
     16-apps-kgpg.png
     22-apps-kgpg.png
     32-apps-kgpg.png
     48-apps-kgpg.png
     64-apps-kgpg.png
     128-apps-kgpg.png
     sc-apps-kgpg.svg
     DESTINATION ${KDE_INSTALL_ICONDIR}
     THEME hicolor
 )
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)