diff --git a/build.gradle.kts b/build.gradle.kts
index db2f299..6e4bafe 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -35,7 +35,7 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 group = "org.droidmate"
-version = "2.5.0"
+version = "2.5.1"
 
 plugins {
 	id("org.jetbrains.kotlin.jvm") apply true
diff --git a/src/main/kotlin/org/droidmate/deviceInterface/DeviceConstants.kt b/src/main/kotlin/org/droidmate/deviceInterface/DeviceConstants.kt
index 1acc3bf..d7fd551 100644
--- a/src/main/kotlin/org/droidmate/deviceInterface/DeviceConstants.kt
+++ b/src/main/kotlin/org/droidmate/deviceInterface/DeviceConstants.kt
@@ -32,7 +32,7 @@ object DeviceConstants {
 
 	// To understand why this is constant and not a cmd line parameter, see comment in
 	// org.droidmate.configuration.ConfigurationBuilder.bindAndValidate()
-	const val UIADAEMON_SERVER_PORT = 59800
+//	const val UIADAEMON_SERVER_PORT = 59800
 
 	const val logcatLogFileName = "droidmate_logcat.txt"
 
diff --git a/src/main/kotlin/org/droidmate/deviceInterface/exploration/AppWindow.kt b/src/main/kotlin/org/droidmate/deviceInterface/exploration/AppWindow.kt
index 5aa3c24..4b0499f 100644
--- a/src/main/kotlin/org/droidmate/deviceInterface/exploration/AppWindow.kt
+++ b/src/main/kotlin/org/droidmate/deviceInterface/exploration/AppWindow.kt
@@ -26,6 +26,6 @@ data class AppWindow(
         val screenSize: Pair<Int, Int>
 ) : Serializable {
     companion object {
-        private const val serialVersionUID: Long = -686914223 // this is "AppWindow".hashCode but it only has to be unique
+        private const val serialVersionUID: Long = -686914224 // this is "AppWindow".hashCode but it only has to be unique
     }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/org/droidmate/deviceInterface/exploration/DeviceResponse.kt b/src/main/kotlin/org/droidmate/deviceInterface/exploration/DeviceResponse.kt
index aedd62f..56409e9 100644
--- a/src/main/kotlin/org/droidmate/deviceInterface/exploration/DeviceResponse.kt
+++ b/src/main/kotlin/org/droidmate/deviceInterface/exploration/DeviceResponse.kt
@@ -44,7 +44,7 @@ open class DeviceResponse private constructor(
 
 	companion object {
 
-		const val serialVersionUID: Long = -1656574761L   // "DeviceResponse".hashCode
+		const val serialVersionUID: Long = -1656574762L   // "DeviceResponse".hashCode has to be unique, i.e. modify it when this class is modified
 
 		fun create(isSuccessful: Boolean,
 		           uiHierarchy: List<UiElementPropertiesI>, uiDump: String, launchedActivity: String,