T5.3.19 Update ^new^ Instant

Is this post meant to the update or guide users through a troubleshoot? Hello, Is there an update available for this ?

Update now via your dashboard or package manager. T5.3.19 Update

Updates for these units rarely arrive "over-the-air" (OTA). Instead, they usually require a manual "side-load" process: Which plug-in for Android Car Stereo, unknown brand? Is this post meant to the update or