diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,12 +1,12 @@
 cmake_minimum_required(VERSION 3.0)
 
-set(KF5_VERSION "5.48.0") # handled by release scripts
-set(KF5_DEP_VERSION "5.48.0") # handled by release scripts
+set(KF5_VERSION "5.50.0") # handled by release scripts
+set(KF5_DEP_VERSION "5.49.0") # handled by release scripts
 project(Plasma VERSION ${KF5_VERSION})
 
 # ECM setup
 include(FeatureSummary)
-find_package(ECM 5.48.0  NO_MODULE)
+find_package(ECM 5.49.0  NO_MODULE)
 set_package_properties(ECM PROPERTIES TYPE REQUIRED DESCRIPTION "Extra CMake Modules." URL "https://projects.kde.org/projects/kdesupport/extra-cmake-modules")
 feature_summary(WHAT REQUIRED_PACKAGES_NOT_FOUND FATAL_ON_MISSING_REQUIRED_PACKAGES)
 
diff --git a/examples/applets/conditionalloader/metadata.desktop b/examples/applets/conditionalloader/metadata.desktop
--- a/examples/applets/conditionalloader/metadata.desktop
+++ b/examples/applets/conditionalloader/metadata.desktop
@@ -12,7 +12,7 @@
 Name[en_GB]=Applet Test
 Name[es]=Prueba de miniaplicación
 Name[et]=Apleti test
-Name[eu]=Applet proba
+Name[eu]=Aplikaziotxo-proba
 Name[fi]=Sovelmatesti
 Name[fr]=Applet test
 Name[gd]=Deuchainn air aplaid
diff --git a/examples/applets/dataenginemodel/metadata.desktop b/examples/applets/dataenginemodel/metadata.desktop
--- a/examples/applets/dataenginemodel/metadata.desktop
+++ b/examples/applets/dataenginemodel/metadata.desktop
@@ -7,7 +7,7 @@
 Comment[en_GB]=Example applet that shows how to use Models embedded in DataEngines
 Comment[es]=Miniaplicación de ejemplo que muestra cómo usar modelos empotrados en motores de datos
 Comment[et]=Näidisaplett selle kohta, kuidas kasutada andmemootoritesse põimitud mudeleid
-Comment[eu]=Adibide appleta, erakusten duena 'DataEngine'tan txertatutako ereduak nola erabili
+Comment[eu]=Adibide aplikaziotxoa, «DataEngine»etan kapsulatutako modeloak nola erabili erakusten duena
 Comment[fi]=Esimerkkisovelma, joka näyttää, miten tietomoottoreihin upotettuja malleja käytetään
 Comment[fr]=Exemple d'applet qui montre comment utiliser les modèles embarqués dans DataEngines
 Comment[gd]=Aplaid-eisimpleir a sheallas mar a chleachdas tu modailean leabaichte ann an DataEngines
diff --git a/examples/containments/testcontainment/metadata.desktop b/examples/containments/testcontainment/metadata.desktop
--- a/examples/containments/testcontainment/metadata.desktop
+++ b/examples/containments/testcontainment/metadata.desktop
@@ -9,7 +9,7 @@
 Name[en_GB]=Containment Test
 Name[es]=Prueba de contenedor
 Name[et]=Konteineri test
-Name[eu]=Edukiontzi proba
+Name[eu]=Konfinamendu-proba
 Name[fi]=Sovelmasäiiliötesti
 Name[fr]=Test du conteneur
 Name[gd]=Deuchainn air soithichean
diff --git a/examples/dataengines/customDataContainers/plasma-dataengine-example-customDataContainers.desktop b/examples/dataengines/customDataContainers/plasma-dataengine-example-customDataContainers.desktop
--- a/examples/dataengines/customDataContainers/plasma-dataengine-example-customDataContainers.desktop
+++ b/examples/dataengines/customDataContainers/plasma-dataengine-example-customDataContainers.desktop
@@ -8,7 +8,7 @@
 Name[en_GB]=Custom DataContainers
 Name[es]=«DataContainers» personalizados
 Name[et]=Kohandatud andmekonteinerid
-Name[eu]='DataContainer' pertsonalizatuak
+Name[eu]=Norberak finkatutako «DataContainer»rak
 Name[fi]=Mukautetut DataContainerit
 Name[fr]=DataContainers personnalisés
 Name[gd]=DataContainers gnàthaichte
@@ -47,7 +47,7 @@
 Comment[en_GB]=A demonstration of how to subclass DataContainer
 Comment[es]=Una demostración de cómo derivar una clase de «DataContainer»
 Comment[et]=Näidis, kuidas muuta andmekonteiner alamklassiks
-Comment[eu]='DataContainer' azpiklase bat egiteko erakustaldi bat 
+Comment[eu]=«DataContainer» azpiklase bat egiteko erakustaldi bat
 Comment[fi]=Demonstraatio DataContainerin aliluokittamisesta
 Comment[fr]=Une démonstration de comment faire une sous-classe de « DataContainer »
 Comment[gd]=Taisbeanadh air mar a chruthaicheas tu fo-chlasaichean aig DataContainer
diff --git a/src/plasma/containment.cpp b/src/plasma/containment.cpp
--- a/src/plasma/containment.cpp
+++ b/src/plasma/containment.cpp
@@ -124,7 +124,7 @@
     //btw, do we really want to use title() when it's a desktopcontainment?
     QAction *closeApplet = actions()->action(QStringLiteral("remove"));
     if (closeApplet) {
-        closeApplet->setText(i18nc("%1 is the name of the applet", "Remove this %1", title()));
+        closeApplet->setText(i18nc("%1 is the name of the applet", "Remove this %1 widget", title()));
     }
 
     QAction *configAction = actions()->action(QStringLiteral("configure"));
diff --git a/src/plasma/data/servicetypes/plasma-applet.desktop b/src/plasma/data/servicetypes/plasma-applet.desktop
--- a/src/plasma/data/servicetypes/plasma-applet.desktop
+++ b/src/plasma/data/servicetypes/plasma-applet.desktop
@@ -14,7 +14,7 @@
 Comment[en_GB]=Plasma applet
 Comment[es]=Miniaplicación para Plasma
 Comment[et]=Plasma aplett
-Comment[eu]=Plasma appleta
+Comment[eu]=Plasma aplikaziotxoa
 Comment[fi]=Plasma-sovelma
 Comment[fr]=Applet Plasma
 Comment[gd]=Aplaid Plasma
diff --git a/src/plasma/data/servicetypes/plasma-containment.desktop b/src/plasma/data/servicetypes/plasma-containment.desktop
--- a/src/plasma/data/servicetypes/plasma-containment.desktop
+++ b/src/plasma/data/servicetypes/plasma-containment.desktop
@@ -12,7 +12,7 @@
 Comment[en_GB]=Plasma applet container and background painter
 Comment[es]=Contenedor de miniaplicación de Plasma y pintor de fondo
 Comment[et]=Plasma apleti konteiner ja tausta joonistaja
-Comment[eu]=Plasma applet edukitzailea eta atzealdeko margotzailea
+Comment[eu]=Plasmaren aplikaziotxo edukitzailea eta atzealdeko margotzailea
 Comment[fi]=Plasma-sovelmasäiliö ja taustan piirrin
 Comment[fr]=Conteneur d'applets Plasma et décor d'arrière-plan
 Comment[gd]=Soitheach aplaidean agus peantair cùlaibh Plasma
diff --git a/src/plasma/data/servicetypes/plasma-containmentactions.desktop b/src/plasma/data/servicetypes/plasma-containmentactions.desktop
--- a/src/plasma/data/servicetypes/plasma-containmentactions.desktop
+++ b/src/plasma/data/servicetypes/plasma-containmentactions.desktop
@@ -13,7 +13,7 @@
 Comment[en_GB]=Plasma ContainmentActions
 Comment[es]=«ContainmentActions» de Plasma
 Comment[et]=Plasma konteineritoimingud
-Comment[eu]=Plasma 'ContainmentActions'
+Comment[eu]=Plasmaren konfinamendu-ekintzak
 Comment[fi]=Plasma ContainmentActions
 Comment[fr]=Actions de conteneur de Plasma
 Comment[gd]=Plasma ContainmentActions
diff --git a/src/plasma/packagestructure/containmentactions-packagestructure.json b/src/plasma/packagestructure/containmentactions-packagestructure.json
--- a/src/plasma/packagestructure/containmentactions-packagestructure.json
+++ b/src/plasma/packagestructure/containmentactions-packagestructure.json
@@ -21,7 +21,7 @@
         "Name[el]": "Ενέργειες υποδοχέα",
         "Name[es]": "Acciones del contenedor",
         "Name[et]": "Konteineritoimingud",
-        "Name[eu]": "Edukiontzien ekintzak",
+        "Name[eu]": "Konfinamenduen ekintzak",
         "Name[fi]": "Sovelmasäiliön toiminnot",
         "Name[fr]": "Actions de conteneur",
         "Name[gl]": "Accións de contención",
diff --git a/src/plasma/private/applet_p.cpp b/src/plasma/private/applet_p.cpp
--- a/src/plasma/private/applet_p.cpp
+++ b/src/plasma/private/applet_p.cpp
@@ -121,7 +121,7 @@
 
     QAction *closeApplet = actions->action(QStringLiteral("remove"));
     if (closeApplet) {
-        closeApplet->setText(i18nc("%1 is the name of the applet", "Remove this %1", q->title()));
+        closeApplet->setText(i18nc("%1 is the name of the applet", "Remove %1", q->title()));
     }
 
     QAction *configAction = actions->action(QStringLiteral("configure"));
diff --git a/src/plasma/private/containment_p.cpp b/src/plasma/private/containment_p.cpp
--- a/src/plasma/private/containment_p.cpp
+++ b/src/plasma/private/containment_p.cpp
@@ -208,6 +208,10 @@
     }
 
     q->addApplet(applet);
+    //mirror behavior of resorecontents: if an applet is not valid, set it immediately to uiReady
+    if (!applet->pluginMetaData().isValid()) {
+        applet->updateConstraints(Plasma::Types::UiReadyConstraint);
+    }
     return applet;
 }
 
diff --git a/templates/cpp-plasmoid/cpp-plasmoid.kdevtemplate b/templates/cpp-plasmoid/cpp-plasmoid.kdevtemplate
--- a/templates/cpp-plasmoid/cpp-plasmoid.kdevtemplate
+++ b/templates/cpp-plasmoid/cpp-plasmoid.kdevtemplate
@@ -10,7 +10,7 @@
 Name[de]=Plasma-QML/C++-Miniprogramm
 Name[en_GB]=Plasma QML/C++ Applet
 Name[es]=Miniaplicación en QML/C++ para Plasma
-Name[eu]=Plasma QML/C++ appleta
+Name[eu]=Plasma QML/C++ aplikaziotxoa
 Name[fi]=Plasman QML/C++-sovelma
 Name[fr]=Applet Plasma QML/C++
 Name[gl]=Miniaplicativo QML/C++ para Plasma
@@ -41,7 +41,7 @@
 Comment[da]=En skabelon til en Plasma-applet skrevet i et hybrid-miks af QML og C++: En skabelon til Plasma som viser et SVG-billede og en tekst
 Comment[en_GB]=A Plasma Applet template written in an hybrid mix of QML and C++: a Plasma applet template displaying a SVG picture and a text
 Comment[es]=Una plantilla de miniaplicación para Plasma escrita en una mezcla híbrida de QML y C++: una plantilla de miniaplicación para Plasma que muestra una imagen SVG y un texto
-Comment[eu]=Plasma applet txantiloi bat QML eta C++ arteko nahasketa hibrido batean idatzia: Plasma applet txantiloi bat SVG irudi bat eta testu bat bistaratzen dituena
+Comment[eu]=Plasma aplikaziotxo-txantiloi bat QML eta C++ arteko nahasketa hibrido batean idatzia: Plasma aplikaziotxo-txantiloi bat SVG irudi bat eta testu bat bistaratzen dituena
 Comment[fi]=QML:n ja C++:n hybridikoosteella kirjoitettu Plasma-sovelmamalli, joka näyttää SVG-kuvan ja tekstin
 Comment[fr]=Un modèle d'applet Plasma écrit dans un mélange hybride de QML et de C++ : un modèle d'applet Plasma qui affiche une image SVG et du texte
 Comment[gl]=Un modelo de miniaplicativo de Plasma escrito nun híbrido de QML e C++: un modelo de miniaplicativo de Plasma que mostra unha imaxe SVG e un texto.
diff --git a/templates/plasma-wallpaper-with-qml-extension/plasma-wallpaper-with-qml-extension.kdevtemplate b/templates/plasma-wallpaper-with-qml-extension/plasma-wallpaper-with-qml-extension.kdevtemplate
--- a/templates/plasma-wallpaper-with-qml-extension/plasma-wallpaper-with-qml-extension.kdevtemplate
+++ b/templates/plasma-wallpaper-with-qml-extension/plasma-wallpaper-with-qml-extension.kdevtemplate
@@ -8,6 +8,7 @@
 Name[en_GB]=Simple Plasma Wallpaper with QML extension
 Name[es]=Fondo de escritorio de Plasma sencillo con extensión QML
 Name[eu]=Plasma horma-paper soil bat QML hedapena duena
+Name[fi]=Yksinkertainen Plasma-taustakuva QML-laajennuksella
 Name[fr]=Fond d'écran Plasma simple avec extension QML
 Name[gl]=Fondo de escritorio simple de Plasma con extensión de QML
 Name[id]=Wallpaper Plasma sederhana dengan ektensi QML
@@ -29,6 +30,7 @@
 Comment[en_GB]=A Plasma wallpaper which uses custom API provided by an own QML extension plugin
 Comment[es]=Un fondo de escritorio para Plasma que usa la API personalizada proporcionada por un complemento propio de extensión QML
 Comment[eu]=Plasma horma-paper bat, QML hedapen plugin propio baten API pertsonalizatu bat erabiltzen duena
+Comment[fi]=Plasma-taustakuva, joka käyttää oman QML-laajennusliitännäisen tarjoamaa mukautettua APIa
 Comment[fr]=Un modèle de fond d'écran Plasma utilisant une API personnalisée fournie par son propre module externe d'extension QML
 Comment[gl]=Un fondo de escritorio de Plasma que usa unha API personalizada fornecida por un complemento de extensión de QML de seu.
 Comment[id]=Sebuah wallpaper Plasma yang menggunakan kustom API yang disediakan oleh plugin ekstensi QML sendiri
diff --git a/templates/qml-plasmoid-with-qml-extension/qml-plasmoid-with-qml-extension.kdevtemplate b/templates/qml-plasmoid-with-qml-extension/qml-plasmoid-with-qml-extension.kdevtemplate
--- a/templates/qml-plasmoid-with-qml-extension/qml-plasmoid-with-qml-extension.kdevtemplate
+++ b/templates/qml-plasmoid-with-qml-extension/qml-plasmoid-with-qml-extension.kdevtemplate
@@ -7,7 +7,7 @@
 Name[de]=Plasma-QML-Miniprogramm mit QML-Erweiterung
 Name[en_GB]=Plasma QML Applet with QML extension
 Name[es]=Miniaplicación en QML para Plasma con extensión QML
-Name[eu]=Plasma QML appleta QML hedapenak dituena
+Name[eu]=Plasma QML aplikaziotxoa QML hedapenak dituena
 Name[fi]=Plasman QML-sovelma QML-laajennuksella
 Name[fr]=Applet Plasma QML avec extension QML
 Name[gl]=Miniaplicativo QML para Plasma con extensión de QML
@@ -37,7 +37,7 @@
 Comment[da]=En skabelon til en Plasma-applet som bruger tilpasset API leveret af ens eget QML-udvidelsesplugin
 Comment[en_GB]=A template for a Plasma applet which uses custom API provided by an own QML extension plugin
 Comment[es]=Una plantilla para una miniaplicación de Plasma que usa la API común proporcionada por un complemento de extensión QML propio
-Comment[eu]=Plasma applet baterako txantiloi bat, QML hedapen plugin propio baten API pertsonalizatu bat erabiltzen duena
+Comment[eu]=Plasma aplikaziotxo baterako txantiloi bat, QML hedapen plugin propio baten API pertsonalizatu bat erabiltzen duena
 Comment[fi]=Plasma-sovelman malli, joka käyttää oman QML-laajennusliitännäisen tarjoamaa mukautettua APIa
 Comment[fr]=Un modèle d'applet Plasma utilisant une API personnalisée fournie par son propre module externe d'extension QML
 Comment[gl]=Un modelo para un trebello de Plasma que usa unha API personalizada fornecida por un complemento de extensión de QML de seu.
diff --git a/templates/qml-plasmoid/qml-plasmoid.kdevtemplate b/templates/qml-plasmoid/qml-plasmoid.kdevtemplate
--- a/templates/qml-plasmoid/qml-plasmoid.kdevtemplate
+++ b/templates/qml-plasmoid/qml-plasmoid.kdevtemplate
@@ -10,7 +10,7 @@
 Name[de]=Plasma-QML-Miniprogramm
 Name[en_GB]=Plasma QML Applet
 Name[es]=Miniaplicación en QML para Plasma
-Name[eu]=Plasma QML appleta
+Name[eu]=Plasma QML aplikaziotxoa
 Name[fi]=Plasman QML-sovelma
 Name[fr]=Applet Plasma QML
 Name[gl]=Miniaplicativo QML para Plasma
@@ -43,7 +43,7 @@
 Comment[da]=En skabelon til en Plasma QML-applet: En skabelon til Plasma som viser et SVG-billede og en tekst
 Comment[en_GB]=Plasma QML Applet template: a Plasma applet template displaying a SVG picture and a text
 Comment[es]=Una plantilla de miniaplicación en QML para Plasma: una plantilla de miniaplicación para Plasma que muestra una imagen SVG y un texto
-Comment[eu]=Plasma QML applet txantiloia: Plasma applet txantiloi bat SVG irudi bat eta testu bat bistaratzen dituena
+Comment[eu]=Plasma QML aplikaziotxo-txantiloia: Plasma aplikaziotxo-txantiloi bat SVG irudi bat eta testu bat bistaratzen dituena
 Comment[fi]=Plasman QML-sovelmamalli, joka näyttää SVG-kuvan ja tekstin
 Comment[fr]=Modèle d'applet Plasma QML : un modèle d'applet Plasma qui affiche une image SVG et du texte
 Comment[gl]=Modelo de miniaplicativo para Plasma: un modelo de miniaplicativo para Plasma que mostra unha imaxe SVG e un texto