Pre-release: OnTheAir CG Designer & OnTheAir CG Server 3.8

About pre-releases (read me!)

Before you download and use a pre-release version, make sure to check the READ ME article to know how to use pre-release versions and their limitations.

Download links

	OnTheAir CG Designer Version 3.8.0b2 (29 July 2026)
	OnTheAir CG Server Version 3.8.0b2 (29 July 2026)

Release Notes

What's new in OnTheAir CG Designer and OnTheAir CG Server?

• IMPROVED: Updated SDK versions of AJA (v18.1), Blackmagic-Design (v16), Deltacast (v6.34) and NDI (6.3.2). Make sure to check the tech specs page of your Softron software for compatibility with different drivers, as well as the manufacturer's website for compatibility of those drivers with your macOS version.

• NEW: Deltacast Cards: Added support for External Key (Fill & Key) with 12G/4C and 12G/8C models. In Output Settings, select an "even" output number (1, 3, 5,...), then set "Pixel Format" to YUVK 4224 8bit. You will then see that the keying menu will switch to "External". The fill signal will be outputted on the selected output, and the key on the next output (so output 2 if you selected output 1 for playout).