Version r31.0.3 was primarily a maintenance release focused on stability for Windows users. Key highlights included:
: Open PowerShell or CMD and type adb version . You should see Android Debug Bridge version 1.0.41 and Version 31.0.3-7562133 . Why stick with r31.0.3? platform-tools r31.0.3-windows
: Environments requiring exactly API 31 support for tools like or older Cordova/Ionic setups. Ionic Forum Installation Note Version r31
Sometimes Google only provides the download and a brief changelog inside the source.properties or repositories.xml file inside the ZIP. Download URL pattern: https://dl.google.com/android/repository/platform-tools_r31.0.3-windows.zip Why stick with r31
: Some Windows USB controllers cause fastboot to hang. With r31.0.3, using a USB 2.0 port (not 3.0) often solves this.
Newer versions of ADB (r33+) introduced stricter security protocols, including mandatory WiFi pairing via QR codes and changes to the adb shell environment. For devices running Android 9 (Pie), Android 10, or Android 11, r31.0.3 is often the most stable. It does not have the "feature creep" that sometimes breaks USB debugging on legacy hardware.