diff --git a/app/build.gradle b/app/build.gradle
index f5adace..d195e9e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -14,7 +14,7 @@ android {
         applicationId "net.helcel.cowspent"
         minSdk = 26
         targetSdk = 37
-        versionName project.hasProperty('VERSION_NAME') ? project.property('VERSION_NAME') : "1"
+        versionName project.hasProperty('VERSION_NAME') ? project.property('VERSION_NAME') : "1.4"
         versionCode project.hasProperty('VERSION_CODE') ? project.property('VERSION_CODE').toInteger() : 1
     }
 
diff --git a/app/src/main/java/net/helcel/cowspent/android/bill_edit/EditBillScreen.kt b/app/src/main/java/net/helcel/cowspent/android/bill_edit/EditBillScreen.kt
index 901469b..42fddcc 100644
--- a/app/src/main/java/net/helcel/cowspent/android/bill_edit/EditBillScreen.kt
+++ b/app/src/main/java/net/helcel/cowspent/android/bill_edit/EditBillScreen.kt
@@ -467,7 +467,7 @@ fun BillAdditionalDetailsSection(
         modifier = Modifier.padding(bottom = 8.dp, top = 16.dp)
     )
 
-    val context = androidx.compose.ui.platform.LocalContext.current
+    val context = LocalContext.current
     var categoryExpanded by remember { mutableStateOf(false) }
     val selectedCategory =
         categories.find { it.id == viewModel.categoryId } ?: CategoryUtils.getCategoryById(context, viewModel.categoryId)
diff --git a/app/src/main/java/net/helcel/cowspent/android/bill_edit/EditBillViewModel.kt b/app/src/main/java/net/helcel/cowspent/android/bill_edit/EditBillViewModel.kt
index cd9b3ba..16918d8 100644
--- a/app/src/main/java/net/helcel/cowspent/android/bill_edit/EditBillViewModel.kt
+++ b/app/src/main/java/net/helcel/cowspent/android/bill_edit/EditBillViewModel.kt
@@ -2,22 +2,20 @@ package net.helcel.cowspent.android.bill_edit
 
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableDoubleStateOf
-import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.mutableLongStateOf
 import androidx.compose.runtime.mutableStateMapOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
+import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.lifecycle.ViewModel
-import net.helcel.cowspent.model.DBBill
-import net.helcel.cowspent.model.DBMember
 import net.helcel.cowspent.android.helper.DialogState
 import net.helcel.cowspent.android.helper.parseAmount
+import net.helcel.cowspent.model.DBBill
+import net.helcel.cowspent.model.DBCurrency
+import net.helcel.cowspent.model.DBMember
 import net.helcel.cowspent.util.SupportUtil
 import net.helcel.cowspent.util.evalMath
 
-import net.helcel.cowspent.model.DBCurrency
-import androidx.compose.ui.graphics.vector.ImageVector
-
 class EditBillViewModel : ViewModel() {
     var what by mutableStateOf("")
     var amount by mutableStateOf("")
diff --git a/app/src/main/java/net/helcel/cowspent/android/main/BillsListScreen.kt b/app/src/main/java/net/helcel/cowspent/android/main/BillsListScreen.kt
index 3057b91..bf4d881 100644
--- a/app/src/main/java/net/helcel/cowspent/android/main/BillsListScreen.kt
+++ b/app/src/main/java/net/helcel/cowspent/android/main/BillsListScreen.kt
@@ -103,6 +103,10 @@ fun BillsListScreen(
     val context = LocalContext.current
     val sharedPreferences = remember { PreferenceManager.getDefaultSharedPreferences(context) }
     val showArchived = sharedPreferences.getBoolean(stringResource(R.string.pref_key_show_archived), false)
+    val keyBetaFeatures = stringResource(R.string.pref_key_beta_features)
+    var showBetaFeatures by remember(keyBetaFeatures) {
+        mutableStateOf(sharedPreferences.getBoolean(keyBetaFeatures, false))
+    }
 
     StatefulAlertDialog(
         state = viewModel.dialogState,
@@ -158,7 +162,8 @@ fun BillsListScreen(
                 isArchived = proj?.isArchived == true,
                 projectType = proj?.type ?: ProjectType.LOCAL,
                 accessLevel = proj?.myAccessLevel ?: DBProject.ACCESS_LEVEL_ADMIN,
-                isShareable = proj?.isShareable() ?: true
+                isShareable = proj?.isShareable() ?: true,
+                showBetaFeatures = showBetaFeatures
             )
         }
     }
@@ -327,7 +332,7 @@ fun BillsListScreen(
                 },
                 actions = {
                     if (!isSearchExpanded) {
-                        if (viewModel.hasUnlabeledBills) {
+                        if (showBetaFeatures && viewModel.hasUnlabeledBills) {
                             IconButton(onClick = onLabelBillsClick) {
                                 Icon(
                                     Icons.Default.Category,
diff --git a/app/src/main/java/net/helcel/cowspent/android/project/ProjectOptionsDialog.kt b/app/src/main/java/net/helcel/cowspent/android/project/ProjectOptionsDialog.kt
index 4bba2d9..13e2cfb 100644
--- a/app/src/main/java/net/helcel/cowspent/android/project/ProjectOptionsDialog.kt
+++ b/app/src/main/java/net/helcel/cowspent/android/project/ProjectOptionsDialog.kt
@@ -35,7 +35,8 @@ fun ProjectOptionsDialogContent(
     isArchived: Boolean = false,
     projectType: ProjectType = ProjectType.LOCAL,
     accessLevel: Int = DBProject.ACCESS_LEVEL_ADMIN,
-    isShareable: Boolean = true
+    isShareable: Boolean = true,
+    showBetaFeatures: Boolean = false
 ) {
     Surface(
         shape = MaterialTheme.shapes.large,
@@ -79,7 +80,7 @@ fun ProjectOptionsDialogContent(
             // Row 2: Manage Member, Manage Labels, Manage Currencies
             if (!isArchived && isMaintainer) {
                 row2.add(ProjectOption(stringResource(R.string.action_members), Icons.Default.Group, onManageMembers))
-                if (false && (projectType == ProjectType.LOCAL || projectType == ProjectType.COSPEND)) {
+                if (showBetaFeatures && (projectType == ProjectType.LOCAL || projectType == ProjectType.COSPEND)) {
                     row2.add(ProjectOption(stringResource(R.string.action_labels), Icons.AutoMirrored.Filled.Label, onManageLabels))
                 }
                 row2.add(ProjectOption(stringResource(R.string.action_currencies), Icons.Default.MonetizationOn, onManageCurrencies))
@@ -181,7 +182,8 @@ fun ProjectOptionsDialogPreview() {
             isArchived = false,
             projectType = ProjectType.COSPEND,
             accessLevel = DBProject.ACCESS_LEVEL_ADMIN,
-            isShareable = true
+            isShareable = true,
+            showBetaFeatures = true
         )
     }
 }
@@ -205,7 +207,8 @@ fun ProjectOptionsDialogPreview2() {
             isArchived = true,
             projectType = ProjectType.COSPEND,
             accessLevel = DBProject.ACCESS_LEVEL_ADMIN,
-            isShareable = true
+            isShareable = true,
+            showBetaFeatures = true
         )
     }
 }
@@ -228,7 +231,8 @@ fun ProjectOptionsDialogPreview3() {
             isArchived = false,
             projectType = ProjectType.LOCAL,
             accessLevel = DBProject.ACCESS_LEVEL_ADMIN,
-            isShareable = true
+            isShareable = true,
+            showBetaFeatures = true
         )
     }
 }
diff --git a/app/src/main/java/net/helcel/cowspent/android/settings/SettingsScreen.kt b/app/src/main/java/net/helcel/cowspent/android/settings/SettingsScreen.kt
index 71f0e33..dc3ffa1 100644
--- a/app/src/main/java/net/helcel/cowspent/android/settings/SettingsScreen.kt
+++ b/app/src/main/java/net/helcel/cowspent/android/settings/SettingsScreen.kt
@@ -79,6 +79,7 @@ fun SettingsScreen(
     val keyColor = stringResource(R.string.pref_key_color)
     val keyOfflineMode = stringResource(R.string.pref_key_offline_mode)
     val keyShowArchived = stringResource(R.string.pref_key_show_archived)
+    val keyBetaFeatures = stringResource(R.string.pref_key_beta_features)
 
     // States for preferences
     var nightMode by remember(keyNightMode) {
@@ -113,6 +114,9 @@ fun SettingsScreen(
     var showArchived by remember(keyShowArchived) {
         mutableStateOf(sharedPreferences.getBoolean(keyShowArchived, false))
     }
+    var betaFeatures by remember(keyBetaFeatures) {
+        mutableStateOf(sharedPreferences.getBoolean(keyBetaFeatures, false))
+    }
 
     Scaffold(
         topBar = {
@@ -242,6 +246,19 @@ fun SettingsScreen(
             // Other
             SettingsCategory(stringResource(R.string.settings_other))
 
+            SettingsSwitchPreference(
+                title = stringResource(R.string.settings_beta_features),
+                summary = stringResource(R.string.settings_beta_features_summary),
+                icon = Icons.Default.Info,
+                checked = betaFeatures,
+                onCheckedChange = {
+                    betaFeatures = it
+                    sharedPreferences.edit {
+                        putBoolean(keyBetaFeatures, it)
+                    }
+                }
+            )
+
             SettingsPreference(
                 title = stringResource(R.string.title_about),
                 icon = Icons.Default.Info,
diff --git a/app/src/main/java/net/helcel/cowspent/model/DBBill.kt b/app/src/main/java/net/helcel/cowspent/model/DBBill.kt
index 91fd0e5..66b85c4 100644
--- a/app/src/main/java/net/helcel/cowspent/model/DBBill.kt
+++ b/app/src/main/java/net/helcel/cowspent/model/DBBill.kt
@@ -1,6 +1,5 @@
 package net.helcel.cowspent.model
 
-import android.util.Log
 import java.io.Serializable
 import java.util.Calendar
 import java.util.Locale
diff --git a/app/src/main/java/net/helcel/cowspent/persistence/CowspentSQLiteOpenHelper.kt b/app/src/main/java/net/helcel/cowspent/persistence/CowspentSQLiteOpenHelper.kt
index ee1cb76..e4b082e 100644
--- a/app/src/main/java/net/helcel/cowspent/persistence/CowspentSQLiteOpenHelper.kt
+++ b/app/src/main/java/net/helcel/cowspent/persistence/CowspentSQLiteOpenHelper.kt
@@ -7,16 +7,22 @@ import android.database.Cursor
 import android.database.sqlite.SQLiteDatabase
 import android.database.sqlite.SQLiteOpenHelper
 import android.text.TextUtils
-import android.util.Log
 import androidx.annotation.WorkerThread
 import androidx.preference.PreferenceManager
 import net.helcel.cowspent.R
-import net.helcel.cowspent.android.main.BillsListViewActivity
-import net.helcel.cowspent.model.*
+import net.helcel.cowspent.model.DBAccountProject
+import net.helcel.cowspent.model.DBBill
+import net.helcel.cowspent.model.DBBillOwer
+import net.helcel.cowspent.model.DBCategory
+import net.helcel.cowspent.model.DBCurrency
+import net.helcel.cowspent.model.DBMember
+import net.helcel.cowspent.model.DBPaymentMode
+import net.helcel.cowspent.model.DBProject
+import net.helcel.cowspent.model.ProjectType
 import net.helcel.cowspent.util.CategoryUtils
 import net.helcel.cowspent.util.SecureStorage
 import net.helcel.cowspent.util.SupportUtil
-import java.util.*
+import java.util.Locale
 
 /**
  * Helps to add, get, update and delete bills, members, projects with the option to trigger a sync with the server.
@@ -1177,7 +1183,6 @@ class CowspentSQLiteOpenHelper private constructor(val context: Context) :
 
     @Suppress("ConstPropertyName")
     companion object {
-        private val TAG = CowspentSQLiteOpenHelper::class.java.simpleName
         private const val database_version = 1
         private const val database_name = "COWSPENT"
         private const val table_members = "MEMBERS"
diff --git a/app/src/main/java/net/helcel/cowspent/persistence/CowspentServerSyncHelper.kt b/app/src/main/java/net/helcel/cowspent/persistence/CowspentServerSyncHelper.kt
index a750d01..d6272ca 100644
--- a/app/src/main/java/net/helcel/cowspent/persistence/CowspentServerSyncHelper.kt
+++ b/app/src/main/java/net/helcel/cowspent/persistence/CowspentServerSyncHelper.kt
@@ -29,11 +29,9 @@ import net.helcel.cowspent.android.account.AccountActivity
 import net.helcel.cowspent.android.main.BillsListViewActivity
 import net.helcel.cowspent.android.main.MainConstants
 import net.helcel.cowspent.model.DBBill
-import net.helcel.cowspent.model.DBCategory
 import net.helcel.cowspent.model.DBProject
 import net.helcel.cowspent.model.ProjectType
 import net.helcel.cowspent.util.CospendClientUtil.LoginStatus
-import net.helcel.cowspent.util.CategoryUtils
 import net.helcel.cowspent.util.ICallback
 import net.helcel.cowspent.util.IProjectCreationCallback
 import net.helcel.cowspent.util.NextcloudClient
diff --git a/app/src/main/java/net/helcel/cowspent/util/NextcloudClient.kt b/app/src/main/java/net/helcel/cowspent/util/NextcloudClient.kt
index b8a1ded..5d0e244 100644
--- a/app/src/main/java/net/helcel/cowspent/util/NextcloudClient.kt
+++ b/app/src/main/java/net/helcel/cowspent/util/NextcloudClient.kt
@@ -103,9 +103,6 @@ class NextcloudClient(
             val acceptHeader: MutableList<String> = ArrayList()
             acceptHeader.add("application/json")
             headers["Accept"] = acceptHeader
-            val ocsHeader: MutableList<String> = ArrayList()
-            ocsHeader.add("true")
-            headers["OCS-APIRequest"] = ocsHeader
         }
         val nextcloudRequest: NextcloudRequest = if (params == null) {
             NextcloudRequest.Builder()
diff --git a/app/src/main/java/net/helcel/cowspent/util/ServerResponse.kt b/app/src/main/java/net/helcel/cowspent/util/ServerResponse.kt
index 4ae3e17..d1feac3 100644
--- a/app/src/main/java/net/helcel/cowspent/util/ServerResponse.kt
+++ b/app/src/main/java/net/helcel/cowspent/util/ServerResponse.kt
@@ -68,7 +68,7 @@ open class ServerResponse(
         }
         val rawData = JSONObject(content)
         val data = rawData.getJSONObject("ocs")
-        return data.get("data").toString()
+        return data.getString("data")
     }
 
     class ProjectResponse(response: VersatileProjectSyncClient.ResponseData, isOcsResponse: Boolean) :
diff --git a/app/src/main/java/net/helcel/cowspent/util/VersatileProjectSyncClient.kt b/app/src/main/java/net/helcel/cowspent/util/VersatileProjectSyncClient.kt
index 2312552..1918ecb 100644
--- a/app/src/main/java/net/helcel/cowspent/util/VersatileProjectSyncClient.kt
+++ b/app/src/main/java/net/helcel/cowspent/util/VersatileProjectSyncClient.kt
@@ -88,7 +88,7 @@ class VersatileProjectSyncClient(
                     "/ocs/v2.php/apps/cospend/api/v1/projects/" + project.remoteId
                 else
                     "/index.php/apps/cospend/api-priv/projects/" + project.remoteId
-                return ServerResponse.ProjectResponse(requestServerWithSSO(nextcloudAPI!!, target, METHOD_GET, null, null, true), true)
+                return ServerResponse.ProjectResponse(requestServerWithSSO(nextcloudAPI!!, target, METHOD_GET, null, null, cospendVersionGT161), cospendVersionGT161)
             } else {
                 useOcsApiRequest = cospendVersionGT161
                 target = if (cospendVersionGT161)
@@ -1348,9 +1348,6 @@ class VersatileProjectSyncClient(
             val acceptHeader: MutableList<String> = ArrayList()
             acceptHeader.add("application/json")
             headers["Accept"] = acceptHeader
-            val ocsHeader: MutableList<String> = ArrayList()
-            ocsHeader.add("true")
-            headers["OCS-APIRequest"] = ocsHeader
         }
         val nextcloudRequest: NextcloudRequest = if (params == null) {
             NextcloudRequest.Builder()
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index fbdadd5..c11e725 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -135,6 +135,8 @@
     <string name="settings_color_custom">Custom color</string>
     <string name="settings_color_mode">Color Selection</string>
     <string name="settings_show_archived">Show archived projects</string>
+    <string name="settings_beta_features">Beta Features</string>
+    <string name="settings_beta_features_summary">Enable experimental features. Use at your own risk.</string>
     <string name="settings_url_warn_http">WARNING: "http" is unsafe. Use "https".</string>
     <string name="settings_colorpicker_title">Choose Color</string>
 
@@ -155,6 +157,7 @@
     <string name="pref_key_color_mode" translatable="false">colorMode</string>
     <string name="pref_key_offline_mode" translatable="false">offlineMode</string>
     <string name="pref_key_show_archived" translatable="false">showArchived</string>
+    <string name="pref_key_beta_features" translatable="false">betaFeatures</string>
     <string name="pref_value_night_mode_no" translatable="false">1</string>
     <string name="pref_value_night_mode_yes" translatable="false">2</string>
     <string name="pref_value_night_mode_system" translatable="false">-1</string>