DJI has released a new firmware update (v01.04.05.10) for the Osmo Action 4. This new update ads the following improvements and fixes;
Enhanced Video Quality: DJO optimized the processing algorithm to significantly upgrade the image quality for videos recorded at 30 fps or lower.
DJI Mic 2 Transmitter Update: DJI has added an auto power-off function for more efficiency. It powers down automatically if it is not connected or recording for over 15 minutes. Activate this in settings for smarter use.
Better Audio Quality: According to DJI, they have fine-tuned the recording gain and volume performance for the DJI Mic 2 transmitter.
Bug Fixes: DJI has squashed some pesky bugs to ensure smoother operation.