Release v0.2.3

CHANGELOG.md

 # Change Log
 
+## [v0.2.3](https://transfer.hft-stuttgart.de/gitlab/co2ampel/ampel-firmware/-/releases/v0.2.3) 2022/02/22
+
+* Last version with static configuration
+* Allow unencrypted MQTT
+* Updated libraries
+* Slightly refactored structure, leaner header files
+* `led 0/1` instead of `night_mode` as command
+
 ## [v0.2.2](https://transfer.hft-stuttgart.de/gitlab/co2ampel/ampel-firmware/-/releases/v0.2.2) 2021/10/01
 
 * MAC address is now shown at startup and via HTTP

ampel-firmware/util.h

@@ -26,7 +26,7 @@ class Ampel {
 private:
   static void showFreeSpace();
 public:
-  const char *version = "v0.2.3-DEV"; // Update manually after significant changes.
+  const char *version = "v0.2.3"; // Update manually after significant changes.
   const char *board;
   const char *sensorId;
   const char *macAddress;