Searched in the source:

Automatically creates RAOP (Airplay) sink devices based on zeroconf

So it’s the airplay protocol.

Its not terribly far off from pre rendered or FMV games like Myst are doing it.

Minor Hardware changes, essentially bugfix and small feature updates in Hardware. Often with a better manufacturing process improving yield and power consumption.

AMD Mobile chips tend to use a “half-generation” refresh of their main GPU architecture. For example the rdna3 Desktop line is gfx1100, gfx1101, gfx1102 depending on the model. The new mobile GPUs in the strix point CPUs (I. E. the new framework models) have gfx1150/gfx1151 denoting their rdna3.5 refresh.

The UDNA is in reference to amd stopping to have two lines of internal architectures: RDNA for graphics (Radeon cards) and CDNA for compute (like the MI line of chips) and instead have one architecture for both, labeld UDNA.