The StagesBike and the Stages Power L/R meters each have firmware. All can be updated through the StagesBike Manager within the Stages Link app.
The app will disconnect from the bike once the update is complete and reconnect automatically.
Visit the firmware release page for details on current and past firmware versions.
Check your power meter firmware version by selecting Manage crank arms to navigate to the CRANK ARMS menu. The firmware versions will be displayed with either a green check mark if they are up to date, or a red alert symbol if they need to be updated.
To initiate an update, select Firmware. Each power meter needs to be updated individually.