FYI I just did a quick test of 'Post Meridian' via the techroom. I noticed the following changes:
Intro movie (Petrach's monologue) is now in HD
At least some of the loading screens have nice new background images.
Some HUD elements and text look larger, which makes them easier to read, however some of text now spills over their icons which looks a little messy. (Possibly increase icon size to compensate, as the larger text is definitely welcome)
The animated faces are larger too. This appears to have caused a few artefacts in the animations (or made them more noticeable if they were always present.) They take up a fair bit of the screen space now too, which is a little annoying if it happens in the middle of a dog fight. Is there any way to revert them back to their original size?
It is using 19.0.0-RC1,
and it did appear smoother all round