diff --git a/.vscode/extensions.json b/.vscode/extensions.json
deleted file mode 100644
index 080e70d0..00000000
--- a/.vscode/extensions.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-    // See http://go.microsoft.com/fwlink/?LinkId=827846
-    // for the documentation about the extensions.json format
-    "recommendations": [
-        "platformio.platformio-ide"
-    ],
-    "unwantedRecommendations": [
-        "ms-vscode.cpptools-extension-pack"
-    ]
-}
diff --git a/README.md b/README.md
index 953cfa81..8f84371a 100644
--- a/README.md
+++ b/README.md
@@ -1,53 +1,26 @@
 # knx
 
+This is a fork of the thelsing/knx stack from Thomas Kunze for and by the OpenKNX Team.
+
+While we did not remove support for any plattform, the testing focus is on RP2040 (main), ESP32 (experimental) and SAMD21(deprecated).
+
 This projects provides a knx-device stack for arduino (ESP8266, ESP32, SAMD21, RP2040, STM32), CC1310 and linux. (more are quite easy to add)
 It implements most of System-B specification and can be configured with ETS.
 The necessary knxprod-files can be generated with the [Kaenx-Creator](https://github.com/OpenKNX/Kaenx-Creator) tool.
 
-For ESP8266 and ESP32 [WifiManager](https://github.com/tzapu/WiFiManager) is used to configure wifi.
-
-Don't forget to reset ESP8266 manually (disconnect power) after flashing. The reboot doen't work during configuration with ETS otherwise.
-
-Generated documentation can be found [here](https://knx.readthedocs.io/en/latest/).
-
-## Stack configuration possibilities
-
-Specify prog button GPIO other then `GPIO0`:
-```C++
-knx.buttonPin(3); // Use GPIO3 Pin
-```
-
-Specify a LED GPIO for programming mode other then the `LED_BUILTIN`:
-```C++
-knx.ledPin(5);
-```
-
-Use a custom function instead of a LED connected to GPIO to indicate the programming mode:
-```C++
-#include <Arduino.h>
-#include <Adafruit_NeoPixel.h>
-#include <knx.h>
-// create a pixel strand with 1 pixel on PIN_NEOPIXEL
-Adafruit_NeoPixel pixels(1, PIN_NEOPIXEL);
-
-void progLedOff()
-{
-  pixels.clear();
-  pixels.show();
-}
-
-void progLedOn()
-{
-  pixels.setPixelColor(0, pixels.Color(20, 0, 0));
-  pixels.show();
-}
-
-void main ()
-{
- knx.setProgLedOffCallback(progLedOff);
- knx.setProgLedOnCallback(progLedOn);
- [...]
-}
-```
-
-More configuration options can be found in the examples. 
+
+## Usage
+See the examples for basic usage options
+
+
+## Changelog
+
+### V2.1.0 - 2024-07-03
+- complete rework of the TPUart DataLinkLayer with support interrupt-based handling and optimized queue handling
+- added DMA support for RP2040 platform
+- fix some issues with continous integration causing github actions to fail
+- added rp2040 plattform to knx-demo example
+- added bool GroupObject::valueCompare method for only sending the value when it has changed 
+
+### V2.0.0 - 2024-02-13
+- first OpenKNX version
\ No newline at end of file
diff --git a/library.json b/library.json
new file mode 100644
index 00000000..a8ff4f3d
--- /dev/null
+++ b/library.json
@@ -0,0 +1,23 @@
+{
+    "name": "knx",
+    "version": "2.1.0",
+    "dependencies": {
+    },
+    "description": "knx stack",
+    "homepage": "https://openknx.de",
+    "authors": [
+        {
+            "name": "Thomas Kunze"
+        },
+        {
+            "name": "OpenKNX",
+            "email": "info@openknx.de",
+            "url": "https://openknx.de",
+            "maintainer": true
+        }
+    ],
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/OpenKNX/knx"
+    }
+}
\ No newline at end of file
diff --git a/library.properties b/library.properties
index 980e8ea7..8a6dcf82 100644
--- a/library.properties
+++ b/library.properties
@@ -1,6 +1,6 @@
 name=knx
-version=2.0.0
-author=Thomas Kunze et al.
+version=2.1.0
+author=Thomas Kunze, the OpenKNX Team, et. al.
 maintainer=OpenKNX Team
 sentence=knx stack
 paragraph=
diff --git a/src/knx_facade.h b/src/knx_facade.h
index 84c7feaa..0e556672 100644
--- a/src/knx_facade.h
+++ b/src/knx_facade.h
@@ -270,10 +270,10 @@ template <class P, class B> class KnxFacade : private SaveRestore
             pinMode(ledPin(), OUTPUT);
 
         progLedOff();
-        pinMode(buttonPin(), INPUT_PULLUP);
-
+        
         if (_progButtonISRFuncPtr && _buttonPin >= 0)
         {
+            pinMode(buttonPin(), INPUT_PULLUP);
             // Workaround for https://github.com/arduino/ArduinoCore-samd/issues/587
             #if (ARDUINO_API_VERSION >= 10200)
                 attachInterrupt(_buttonPin, _progButtonISRFuncPtr, (PinStatus)CHANGE);