changelog for palladium os 4.0 based on Android 14

sourcechangelog.md

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-# Palladium-OS 4.0
-Initial release based on Android-14
+## Palladium-OS 4.0 Change Log
+
+### Features
+- **Network Traffic Indicators**
+- **4G and 4G+ Icons**
+- **Pocket Mode**
+- **Advanced Reboot Options**
+- **Gesture Navigation Bar Customization**
+- **Double Tap to Sleep/Wake**
+- **Pulsing Notifications on Double Tap**
+- **Selinux Status in Settings**
+- **Status Bar Icon Management**
+- **Smartspace Integration**
+
+### Fixes and Improvements
+- Resolved QS lag/jitter issue when expanding QS.
+
+### How to Get Palladium-OS 4.0?
+1. Visit our [website](https://palladiumos.org) or Palladium community forums.
+2. Download and install Palladium-OS 4.0.