These are no charge updates to existing customers and for DaVinci Resolve users.
This software update adds support for Blackmagic 4.6K film color science used in the new Blackmagic URSA Mini 4.6K camera. RAW clips from this camera now default to BMD Film color space and gamma, and improvements have been made to the Rec. 709 conversion of this footage.
Probably will not see a new version until later in the year. I cannot wait for NAB to get here. We will most likely see another update or so before a new version. I hope it will be something like Nuke Studio, will know soon enough.