Version 2.1 of the GH4’s firmware delivers the following features:
* The ability to add time code to the HDMI output signal.
* Recording start/stop signal embedding in the HDMI output signal.
* Full HD video at 30p/25p native output via HDMI is now available while recording video at FHD at 30p/25p.
* Improved 4K video playback.
Panasonic also fixed a bug related to time lapse shooting.
The GH4 is shipping now for $1,698 (body).