diff --git a/src/androidTest/java/at/bitfire/ical4android/JtxICalObjectTest.kt b/src/androidTest/java/at/bitfire/ical4android/JtxICalObjectTest.kt
index 34e2adb2..b29f04c7 100644
--- a/src/androidTest/java/at/bitfire/ical4android/JtxICalObjectTest.kt
+++ b/src/androidTest/java/at/bitfire/ical4android/JtxICalObjectTest.kt
@@ -6,7 +6,9 @@ package at.bitfire.ical4android
 
 import android.accounts.Account
 import android.content.ContentProviderClient
+import android.content.ContentResolver
 import android.content.ContentValues
+import android.content.Context
 import android.database.DatabaseUtils
 import android.os.ParcelFileDescriptor
 import androidx.test.platform.app.InstrumentationRegistry
@@ -38,14 +40,14 @@ class JtxICalObjectTest {
 
     companion object {
 
-        val context = InstrumentationRegistry.getInstrumentation().targetContext
-        val contentResolver = context.contentResolver
+        private val context: Context = InstrumentationRegistry.getInstrumentation().targetContext
+        private val contentResolver: ContentResolver = context.contentResolver
 
         private lateinit var client: ContentProviderClient
 
         @JvmField
         @ClassRule
-        val permissionRule = GrantPermissionRule.grant(*TaskProvider.PERMISSIONS_JTX)
+        val permissionRule: GrantPermissionRule = GrantPermissionRule.grant(*TaskProvider.PERMISSIONS_JTX)
 
         @BeforeClass
         @JvmStatic
@@ -65,8 +67,8 @@ class JtxICalObjectTest {
     }
 
     private val testAccount = Account("TEST", JtxContract.JtxCollection.TEST_ACCOUNT_TYPE)
-    var collection: JtxCollection<at.bitfire.ical4android.JtxICalObject>? = null
-    var sample: at.bitfire.ical4android.JtxICalObject? = null
+    private var collection: JtxCollection<at.bitfire.ical4android.JtxICalObject>? = null
+    private var sample: at.bitfire.ical4android.JtxICalObject? = null
 
     private val url = "https://jtx.techbee.at"
     private val displayname = "jtxTest"
@@ -95,6 +97,7 @@ class JtxICalObjectTest {
             this.dtend = System.currentTimeMillis()
             this.dtendTimezone = "Europe/Paris"
             this.status = JtxICalObject.StatusJournal.FINAL.name
+            this.xstatus = "my status"
             this.classification = JtxICalObject.Classification.PUBLIC.name
             this.url = "https://jtx.techbee.at"
             this.contact = "jtx@techbee.at"
@@ -102,6 +105,7 @@ class JtxICalObjectTest {
             this.geoLong = 16.3738
             this.location = "Vienna"
             this.locationAltrep = "Wien"
+            this.geofenceRadius = 10
             this.percent = 99
             this.priority = 1
             this.due = System.currentTimeMillis()
@@ -144,6 +148,12 @@ class JtxICalObjectTest {
     @Test fun check_DTEND() = insertRetrieveAssertLong(JtxICalObject.DTEND, sample?.dtend, Component.VJOURNAL.name)
     @Test fun check_DTEND_TIMEZONE() = insertRetrieveAssertString(JtxICalObject.DTEND_TIMEZONE, sample?.dtendTimezone, Component.VJOURNAL.name)
     @Test fun check_STATUS() = insertRetrieveAssertString(JtxICalObject.STATUS, sample?.status, Component.VJOURNAL.name)
+    @Test fun check_XSTATUS() {
+        val jtxVersionCode = context.packageManager.getPackageInfo("at.techbee.jtx", 0).longVersionCode
+        Assume.assumeTrue(jtxVersionCode > 204020003)
+        insertRetrieveAssertString(JtxICalObject.EXTENDED_STATUS, sample?.xstatus, Component.VJOURNAL.name)
+    }
+
     @Test fun check_CLASSIFICATION() = insertRetrieveAssertString(JtxICalObject.CLASSIFICATION, sample?.classification, Component.VJOURNAL.name)
     @Test fun check_URL() = insertRetrieveAssertString(JtxICalObject.URL, sample?.url, Component.VJOURNAL.name)
     @Test fun check_CONTACT() = insertRetrieveAssertString(JtxICalObject.CONTACT, sample?.contact, Component.VJOURNAL.name)
@@ -151,6 +161,12 @@ class JtxICalObjectTest {
     @Test fun check_GEO_LONG() = insertRetrieveAssertDouble(JtxICalObject.GEO_LONG, sample?.geoLong, Component.VJOURNAL.name)
     @Test fun check_LOCATION() = insertRetrieveAssertString(JtxICalObject.LOCATION, sample?.location, Component.VJOURNAL.name)
     @Test fun check_LOCATION_ALTREP() = insertRetrieveAssertString(JtxICalObject.LOCATION_ALTREP, sample?.locationAltrep, Component.VJOURNAL.name)
+    @Test fun check_GEOFENCE_RADIUS() {
+        val jtxVersionCode = context.packageManager.getPackageInfo("at.techbee.jtx", 0).longVersionCode
+        Assume.assumeTrue(jtxVersionCode > 204020003)
+        insertRetrieveAssertInt(JtxICalObject.GEOFENCE_RADIUS, sample?.geofenceRadius, Component.VJOURNAL.name)
+    }
+
     @Test fun check_PERCENT() = insertRetrieveAssertInt(JtxICalObject.PERCENT, sample?.percent, Component.VJOURNAL.name)
     @Test fun check_PRIORITY() = insertRetrieveAssertInt(JtxICalObject.PRIORITY, sample?.priority, Component.VJOURNAL.name)
     @Test fun check_DUE() = insertRetrieveAssertLong(JtxICalObject.DUE, sample?.due, Component.VJOURNAL.name)
diff --git a/src/main/java/at/bitfire/ical4android/JtxICalObject.kt b/src/main/java/at/bitfire/ical4android/JtxICalObject.kt
index c5fc44ac..79d2ec1a 100644
--- a/src/main/java/at/bitfire/ical4android/JtxICalObject.kt
+++ b/src/main/java/at/bitfire/ical4android/JtxICalObject.kt
@@ -91,6 +91,7 @@ open class JtxICalObject(
     var geoLong: Double? = null
     var location: String? = null
     var locationAltrep: String? = null
+    var geofenceRadius: Int? = null
 
     var uid: String = UUID.randomUUID().toString()
 
@@ -229,6 +230,7 @@ open class JtxICalObject(
         const val X_PARAM_ATTACH_LABEL = "X-LABEL"     // used for filename in KOrganizer
         const val X_PARAM_FILENAME = "FILENAME"     // used for filename in GNOME Evolution
         const val X_PROP_XSTATUS = "X-STATUS"   // used to define an extended status (additionally to standard status)
+        const val X_PROP_GEOFENCE_RADIUS = "X-GEOFENCE-RADIUS"   // used to define a Geofence-Radius to notifiy the user when close
 
         /**
          * Parses an iCalendar resource and extracts the VTODOs and/or VJOURNALS.
@@ -543,6 +545,7 @@ open class JtxICalObject(
                     else -> when(prop.name) {
                         X_PROP_COMPLETEDTIMEZONE -> iCalObject.completedTimezone = prop.value
                         X_PROP_XSTATUS -> iCalObject.xstatus = prop.value
+                        X_PROP_GEOFENCE_RADIUS -> iCalObject.geofenceRadius = try { prop.value.toInt() } catch (e: NumberFormatException) { Ical4Android.log.warning("Wrong format for geofenceRadius: ${prop.value}"); null }
                         else -> iCalObject.unknown.add(Unknown(value = UnknownProperty.toJsonString(prop)))               // save the whole property for unknown properties
                     }
                 }
@@ -718,6 +721,9 @@ open class JtxICalObject(
         if (geoLat != null && geoLong != null) {
             props += Geo(geoLat!!.toBigDecimal(), geoLong!!.toBigDecimal())
         }
+        geofenceRadius?.let { geofenceRadius ->
+            props += XProperty(X_PROP_GEOFENCE_RADIUS, geofenceRadius.toString())
+        }
         color?.let { props += Color(null, Css3Color.nearestMatch(it).name) }
         url?.let {
             try {
@@ -1398,6 +1404,7 @@ duration?.let(props::add)
         this.locationAltrep = newData.locationAltrep
         this.geoLat = newData.geoLat
         this.geoLong = newData.geoLong
+        this.geofenceRadius = newData.geofenceRadius
         this.percent = newData.percent
         this.classification = newData.classification
         this.status = newData.status
@@ -1457,6 +1464,7 @@ duration?.let(props::add)
         values.getAsDouble(JtxContract.JtxICalObject.GEO_LONG)?.let { geoLong -> this.geoLong = geoLong }
         values.getAsString(JtxContract.JtxICalObject.LOCATION)?.let { location -> this.location = location }
         values.getAsString(JtxContract.JtxICalObject.LOCATION_ALTREP)?.let { locationAltrep -> this.locationAltrep = locationAltrep }
+        values.getAsInteger(JtxContract.JtxICalObject.GEOFENCE_RADIUS)?.let { geofenceRadius -> this.geofenceRadius = geofenceRadius  }
         values.getAsInteger(JtxContract.JtxICalObject.PERCENT)?.let { percent -> this.percent = percent }
         values.getAsInteger(JtxContract.JtxICalObject.PRIORITY)?.let { priority -> this.priority = priority }
         values.getAsLong(JtxContract.JtxICalObject.DUE)?.let { due -> this.due = due }
@@ -1682,6 +1690,7 @@ duration?.let(props::add)
         put(JtxContract.JtxICalObject.GEO_LONG, geoLong)
         put(JtxContract.JtxICalObject.LOCATION, location)
         put(JtxContract.JtxICalObject.LOCATION_ALTREP, locationAltrep)
+        put(JtxContract.JtxICalObject.GEOFENCE_RADIUS, geofenceRadius)
         put(JtxContract.JtxICalObject.PERCENT, percent)
         put(JtxContract.JtxICalObject.DTSTAMP, dtstamp)
         put(JtxContract.JtxICalObject.DTSTART, dtstart)
diff --git a/src/main/java/at/techbee/jtx/JtxContract.kt b/src/main/java/at/techbee/jtx/JtxContract.kt
index 9328a96a..7d5eace0 100644
--- a/src/main/java/at/techbee/jtx/JtxContract.kt
+++ b/src/main/java/at/techbee/jtx/JtxContract.kt
@@ -42,7 +42,7 @@ object JtxContract {
     const val AUTHORITY = "at.techbee.jtx.provider"
 
     /** The version of this SyncContentProviderContract */
-    const val VERSION = 4
+    const val VERSION = 5
 
     /** Constructs an Uri for the Jtx Sync Adapter with the given Account
      * @param [account] The account that should be appended to the Base Uri
@@ -279,6 +279,13 @@ object JtxContract {
          */
         const val EXTENDED_STATUS = "xstatus"
 
+        /**
+         * Purpose:  Defines the radius for a geofence in meters
+         * This is put into an extended property in the iCalendar-file
+         * Type: [String]
+         */
+        const val GEOFENCE_RADIUS = "geofenceRadius"
+
         /**
          * Purpose:  This property defines the access classification for a calendar component.
          * The possible values of a status are defined in the enum [Classification].