diff --git a/.travis.yml b/.travis.yml
index d50cab0b1..c395c3ecc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,7 @@ android:
     - platform-tools
     - tools
     - build-tools-28.0.3
+    - build-tools-29.0.2
     - build-tools-29.0.3
     - android-24
     - android-28
diff --git a/build.gradle b/build.gradle
index 456eb54f4..c205a384f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,8 +6,8 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.2'
-        classpath("com.github.triplet.gradle:play-publisher:2.0.0-rc1")
+        classpath 'com.android.tools.build:gradle:4.1.2'
+        classpath("com.github.triplet.gradle:play-publisher:2.8.1")
     }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 0aabb0464..ce73a4441 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Nov 14 17:12:16 CET 2019
+#Wed Feb 10 23:10:33 CET 2021
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
diff --git a/opentasks/src/main/play/contact-email.txt b/opentasks/src/main/play/contact-email.txt
new file mode 100644
index 000000000..50c51659f
--- /dev/null
+++ b/opentasks/src/main/play/contact-email.txt
@@ -0,0 +1 @@
+marten.gajda@googlemail.com
diff --git a/opentasks/src/main/play/contact-website.txt b/opentasks/src/main/play/contact-website.txt
new file mode 100644
index 000000000..f5292ffe0
--- /dev/null
+++ b/opentasks/src/main/play/contact-website.txt
@@ -0,0 +1 @@
+http://dmfs.org
diff --git a/opentasks/src/main/play/default-language.txt b/opentasks/src/main/play/default-language.txt
new file mode 100644
index 000000000..d6e549e65
--- /dev/null
+++ b/opentasks/src/main/play/default-language.txt
@@ -0,0 +1 @@
+en-GB
diff --git a/opentasks/src/main/play/listings/en-GB/full-description.txt b/opentasks/src/main/play/listings/en-GB/full-description.txt
new file mode 100644
index 000000000..54a0d57b2
--- /dev/null
+++ b/opentasks/src/main/play/listings/en-GB/full-description.txt
@@ -0,0 +1,25 @@
+An Open Source task app in Material Design.
+
+This app supports basic task management and provides user friendly user interface.
+
+To complete a task in the list view, just hold it for a moment and fling it from the left to the right.
+To edit a task fling it from the right to the left.
+
+<b>Open source</b>
+The app is open source. Please feel free to join the development at: https://github.com/dmfs/tasks
+
+<b>Report bugs</b>
+To report bugs, please use this bug tracker: https://github.com/dmfs/tasks/issues
+
+<b>Features still to come:</b>
+* more translations
+* support for recurring tasks
+* support for alarms
+* support for categories
+* sortings and filters
+* many more
+
+Please don't rate missing features, but only features the app already has. The app is still under development and lots of fancy stuff is still to come.
+
+<b>Permissions</b>
+At present the app doesn't use the "read contacts" permission. This permission has been added in advance for future releases. It's planned to support adding attendees to tasks and to provide auto-completion for the contacts.
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/feature-graphic/1.png b/opentasks/src/main/play/listings/en-GB/graphics/feature-graphic/1.png
new file mode 100644
index 000000000..8c1c6bb89
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/feature-graphic/1.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/icon/1.png b/opentasks/src/main/play/listings/en-GB/graphics/icon/1.png
new file mode 100644
index 000000000..3bd6d7916
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/icon/1.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/1.png b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/1.png
new file mode 100644
index 000000000..fe3a30056
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/1.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/2.png b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/2.png
new file mode 100644
index 000000000..77cbaf04a
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/2.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/3.png b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/3.png
new file mode 100644
index 000000000..faedb890d
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/3.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/4.png b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/4.png
new file mode 100644
index 000000000..66f7692f5
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/4.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/5.png b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/5.png
new file mode 100644
index 000000000..9db7af838
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/5.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/6.png b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/6.png
new file mode 100644
index 000000000..746a159f0
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/large-tablet-screenshots/6.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/1.png b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/1.png
new file mode 100644
index 000000000..0eb363f61
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/1.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/2.png b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/2.png
new file mode 100644
index 000000000..a640a7880
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/2.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/3.png b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/3.png
new file mode 100644
index 000000000..a82c733db
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/3.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/4.png b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/4.png
new file mode 100644
index 000000000..f54a1cd86
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/4.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/5.png b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/5.png
new file mode 100644
index 000000000..0d4237b65
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/5.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/6.png b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/6.png
new file mode 100644
index 000000000..a8aaf91fa
Binary files /dev/null and b/opentasks/src/main/play/listings/en-GB/graphics/phone-screenshots/6.png differ
diff --git a/opentasks/src/main/play/listings/en-GB/short-description.txt b/opentasks/src/main/play/listings/en-GB/short-description.txt
new file mode 100644
index 000000000..32057c3ec
--- /dev/null
+++ b/opentasks/src/main/play/listings/en-GB/short-description.txt
@@ -0,0 +1 @@
+Open Source Task Management.
diff --git a/opentasks/src/main/play/listings/en-GB/title.txt b/opentasks/src/main/play/listings/en-GB/title.txt
new file mode 100644
index 000000000..75886553d
--- /dev/null
+++ b/opentasks/src/main/play/listings/en-GB/title.txt
@@ -0,0 +1 @@
+OpenTasks
diff --git a/opentasks/src/main/play/release-notes/en-GB/production.txt b/opentasks/src/main/play/release-notes/en-GB/production.txt
new file mode 100644
index 000000000..725a687db
--- /dev/null
+++ b/opentasks/src/main/play/release-notes/en-GB/production.txt
@@ -0,0 +1 @@
+see https://github.com/dmfs/opentasks/releases/tag/1.3.0
diff --git a/opentasks/src/main/res/layout/account_list_item_dialog.xml b/opentasks/src/main/res/layout/account_list_item_dialog.xml
index 23450ebad..4bd80cad1 100644
--- a/opentasks/src/main/res/layout/account_list_item_dialog.xml
+++ b/opentasks/src/main/res/layout/account_list_item_dialog.xml
@@ -1,11 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:paddingBottom="12dip"
         android:paddingTop="12dip">
 
-    <ImageView
+    <androidx.appcompat.widget.AppCompatImageView
             android:id="@+id/btn_settings"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
@@ -13,7 +14,7 @@
             android:layout_marginLeft="24dp"
             android:layout_marginStart="24dp"
             android:src="@drawable/ic_24_account_circle_black50"
-            android:tint="?attr/colorSecondary"/>
+            app:tint="?attr/colorSecondary" />
 
     <LinearLayout
             android:layout_width="match_parent"
@@ -28,14 +29,14 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:textAppearance="@style/TextAppearance.AppCompat.Subhead"
-                android:textIsSelectable="false"/>
+                android:textIsSelectable="false" />
 
         <TextView
                 android:id="@android:id/text2"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:textAppearance="@style/TextAppearance.AppCompat.Body1"
-                android:textIsSelectable="false"/>
+                android:textIsSelectable="false" />
     </LinearLayout>
 
 </RelativeLayout>
\ No newline at end of file
diff --git a/opentasks/src/main/res/layout/task_list_field_editor.xml b/opentasks/src/main/res/layout/task_list_field_editor.xml
deleted file mode 100644
index 9745ee96e..000000000
--- a/opentasks/src/main/res/layout/task_list_field_editor.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<org.dmfs.tasks.widget.TaskListFieldEditor xmlns:android="http://schemas.android.com/apk/res/android"
-        style="@style/task_widget">
-
-    <TextView
-            android:id="@+id/task_list_name"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"/>
-
-    <TextView
-            android:id="@+id/task_list_account"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="3sp"
-            android:textSize="10sp"/>
-
-</org.dmfs.tasks.widget.TaskListFieldEditor>
\ No newline at end of file
diff --git a/opentasks/src/main/res/layout/task_list_field_view.xml b/opentasks/src/main/res/layout/task_list_field_view.xml
deleted file mode 100644
index 4843ff767..000000000
--- a/opentasks/src/main/res/layout/task_list_field_view.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<org.dmfs.tasks.widget.TaskListFieldView xmlns:android="http://schemas.android.com/apk/res/android"
-        style="@style/task_widget">
-
-    <TextView
-            android:id="@+id/task_list_name"
-            style="@style/field_view_text_value"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"/>
-
-    <TextView
-            android:id="@+id/task_list_account"
-            style="@style/field_view_text_value"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:textAppearance="@android:style/TextAppearance.Small"/>
-
-</org.dmfs.tasks.widget.TaskListFieldView>
\ No newline at end of file