diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 000000000..1925761f0
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,10 @@
+Folder-Description:
+===================
+* `briar-*`: Specifically for the Briar app (Phone/Desktop/Headless)
+* `bramble-*`: The protocol stack - not necessarily Briar-dependent
+
+---
+
+* `*-api`: public stuff that can be referenced from other packages and modules - mostly interfaces + a few utility classes
+* `*-core`: implementations of api that are portable across Android/Desktop/Headless
+* `*-java`: implementations of api that are specific to Desktop & Headless
diff --git a/bramble-core/build.gradle b/bramble-core/build.gradle
index 1d8e6eab5..631629342 100644
--- a/bramble-core/build.gradle
+++ b/bramble-core/build.gradle
@@ -16,7 +16,7 @@ dependencies {
 	implementation 'org.bitlet:weupnp:0.1.4'
 	implementation 'net.i2p.crypto:eddsa:0.2.0'
 	implementation 'org.whispersystems:curve25519-java:0.5.0'
-	implementation 'org.briarproject:jtorctl:0.4'
+	implementation 'org.briarproject:jtorctl:0.5'
 
 	//noinspection GradleDependency
 	implementation "com.squareup.okhttp3:okhttp:$okhttp_version"
diff --git a/bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java b/bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java
index a4a3f4530..1b51547a9 100644
--- a/bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java
+++ b/bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java
@@ -800,6 +800,13 @@ abstract class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		}
 	}
 
+	@Override
+	public void controlConnectionClosed() {
+		if (state.isTorRunning()) {
+			throw new RuntimeException("Control connection closed");
+		}
+	}
+
 	private String removeSeverity(String msg) {
 		return msg.replaceFirst("[^ ]+ ", "");
 	}
diff --git a/bramble-core/witness.gradle b/bramble-core/witness.gradle
index 7689c5821..f1af7ac8f 100644
--- a/bramble-core/witness.gradle
+++ b/bramble-core/witness.gradle
@@ -35,7 +35,7 @@ dependencyVerification {
         'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
         'org.bitlet:weupnp:0.1.4:weupnp-0.1.4.jar:88df7e6504929d00bdb832863761385c68ab92af945b04f0770b126270a444fb',
         'org.bouncycastle:bcprov-jdk15to18:1.70:bcprov-jdk15to18-1.70.jar:7df4c54f29ce2dd616dc3b198ca4db3dfcc79e3cb397c084a0aff97b85c0bf38',
-        'org.briarproject:jtorctl:0.4:jtorctl-0.4.jar:4e61f59dc9f3984438a7151c4df8d7c1f83d5fb3eb8c151acfc794a8fef85a36',
+        'org.briarproject:jtorctl:0.5:jtorctl-0.5.jar:43f8c7d390169772b9a2c82ab806c8414c136a2a8636c555e22754bb7260793b',
         'org.checkerframework:checker-compat-qual:2.5.3:checker-compat-qual-2.5.3.jar:d76b9afea61c7c082908023f0cbc1427fab9abd2df915c8b8a3e7a509bccbc6d',
         'org.checkerframework:checker-qual:2.5.2:checker-qual-2.5.2.jar:64b02691c8b9d4e7700f8ee2e742dce7ea2c6e81e662b7522c9ee3bf568c040a',
         'org.codehaus.mojo.signature:java16:1.1:java16-1.1.signature:53799223a2c98dba2d0add810bed76315460df285c69e4f397ae6098f87dd619',
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/settings/AboutFragment.java b/briar-android/src/main/java/org/briarproject/briar/android/settings/AboutFragment.java
new file mode 100644
index 000000000..8c6ce98f0
--- /dev/null
+++ b/briar-android/src/main/java/org/briarproject/briar/android/settings/AboutFragment.java
@@ -0,0 +1,85 @@
+package org.briarproject.briar.android.settings;
+
+import android.content.ActivityNotFoundException;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
+import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
+import org.briarproject.briar.BuildConfig;
+import org.briarproject.briar.R;
+
+
+import java.util.logging.Logger;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
+import static android.widget.Toast.LENGTH_LONG;
+import static java.util.logging.Level.WARNING;
+import static java.util.logging.Logger.getLogger;
+import static org.briarproject.bramble.util.LogUtils.logException;
+
+@MethodsNotNullByDefault
+@ParametersNotNullByDefault
+public class AboutFragment extends Fragment {
+
+	final static String TAG = AboutFragment.class.getName();
+	private static final Logger LOG = getLogger(TAG);
+
+	private TextView briarVersion;
+	private TextView briarWebsite;
+	private TextView briarSourceCode;
+
+	@Nullable
+	@Override
+	public View onCreateView(@NonNull LayoutInflater inflater,
+			@Nullable ViewGroup container,
+			@Nullable Bundle savedInstanceState) {
+		return inflater.inflate(R.layout.fragment_about, container,
+				false);
+	}
+
+	@Override
+	public void onStart() {
+		super.onStart();
+		requireActivity().setTitle(R.string.about_title);
+		briarVersion = requireActivity().findViewById(R.id.BriarVersion);
+		briarVersion.setText(
+				getString(R.string.briar_version, BuildConfig.VERSION_NAME));
+		briarWebsite = requireActivity().findViewById(R.id.BriarWebsite);
+		briarSourceCode = requireActivity().findViewById(R.id.BriarSourceCode);
+		briarWebsite.setOnClickListener(View -> {
+			String url = "https://briarproject.org/";
+			Intent i = new Intent(Intent.ACTION_VIEW);
+			i.setData(Uri.parse(url));
+			try {
+				startActivity(i);
+			} catch (ActivityNotFoundException e) {
+				logException(LOG, WARNING, e);
+				Toast.makeText(requireContext(),
+						R.string.error_start_activity, LENGTH_LONG).show();
+			}
+		});
+		briarSourceCode.setOnClickListener(View -> {
+			String url = "https://code.briarproject.org/briar/briar";
+			Intent i = new Intent(Intent.ACTION_VIEW);
+			i.setData(Uri.parse(url));
+			try {
+				startActivity(i);
+			} catch (ActivityNotFoundException e) {
+				logException(LOG, WARNING, e);
+				Toast.makeText(requireContext(),
+						R.string.error_start_activity, LENGTH_LONG).show();
+			}
+		});
+	}
+
+}
\ No newline at end of file
diff --git a/briar-android/src/main/res/drawable/ic_info_dark.xml b/briar-android/src/main/res/drawable/ic_info_dark.xml
new file mode 100644
index 000000000..aa955e9e5
--- /dev/null
+++ b/briar-android/src/main/res/drawable/ic_info_dark.xml
@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:tools="http://schemas.android.com/tools"
+	android:width="24dp"
+	android:height="24dp"
+	android:tint="?android:attr/textColorPrimary"
+	android:viewportWidth="24.0"
+	android:viewportHeight="24.0"
+	tools:ignore="NewApi">
+	<path
+		android:fillColor="#FF000000"
+		android:pathData="M11,17h2v-6h-2v6zM12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM12,20c-4.41,0 -8,-3.59 -8,-8s3.59,-8 8,-8 8,3.59 8,8 -3.59,8 -8,8zM11,9h2L13,7h-2v2z" />
+</vector>
diff --git a/briar-android/src/main/res/layout/fragment_about.xml b/briar-android/src/main/res/layout/fragment_about.xml
new file mode 100644
index 000000000..87881bb00
--- /dev/null
+++ b/briar-android/src/main/res/layout/fragment_about.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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="match_parent"
+	android:padding="16dp">
+
+	<TextView
+		android:id="@+id/BriarVersion"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:text="@string/briar_version"
+		android:textAppearance="@style/TextAppearance.MaterialComponents.Body1"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toTopOf="parent" />
+
+	<TextView
+		android:id="@+id/LinksTitle"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:text="@string/links"
+		android:textAppearance="@style/TextAppearance.MaterialComponents.Body1"
+		android:layout_marginTop="16dp"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/BriarVersion" />
+
+	<TextView
+		android:id="@+id/BriarWebsite"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:text="@string/briar_website"
+		android:textAppearance="@style/TextAppearance.MaterialComponents.Body1"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/LinksTitle" />
+
+	<TextView
+		android:id="@+id/BriarSourceCode"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:text="@string/briar_source_code"
+		android:textAppearance="@style/TextAppearance.MaterialComponents.Body1"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/BriarWebsite" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/briar-android/src/main/res/values/strings.xml b/briar-android/src/main/res/values/strings.xml
index 496f3a183..1479fd4fe 100644
--- a/briar-android/src/main/res/values/strings.xml
+++ b/briar-android/src/main/res/values/strings.xml
@@ -691,6 +691,13 @@
 	<string name="mailbox_error_wizard_info2">Please come back to this screen when you have access to the device.</string>
 	<string name="mailbox_error_wizard_info3">Please unlink your mailbox using the button below.\n\nAfter unlinking your old Mailbox, you can set up a new Mailbox at any time.</string>
 
+	<!-- About -->
+	<string name="about_title">About</string>
+	<string name="briar_version">Briar Version: %s</string>
+	<string name="links">Links</string>
+	<string name="briar_website">\u2022 <a href="">Briar website</a></string>
+	<string name="briar_source_code">\u2022 <a href="">Briar source code</a></string>
+
 	<!-- Conversation Settings -->
 	<string name="disappearing_messages_title">Disappearing messages</string>
 	<string name="disappearing_messages_explanation_long">Turning on this setting will make new
diff --git a/briar-android/src/main/res/xml/settings.xml b/briar-android/src/main/res/xml/settings.xml
index f968985ff..c25dced90 100644
--- a/briar-android/src/main/res/xml/settings.xml
+++ b/briar-android/src/main/res/xml/settings.xml
@@ -29,6 +29,11 @@
 		android:title="@string/mailbox_settings_title"
 		app:icon="@drawable/ic_mailbox" />
 
+	<Preference
+		android:title="@string/about_title"
+		app:fragment="org.briarproject.briar.android.settings.AboutFragment"
+		app:icon="@drawable/ic_info_dark" />
+
 	<PreferenceCategory
 		android:key="pref_key_actions"
 		android:layout="@layout/preferences_category"