Ether One Redux showed up as updated in my library today. However, unlike the other games, it has no Changelog button! Anyone know what's new?

The Redux version itself is new. So far the game was called Ether One which was developed on UDK engine and it only contained English and Spanish subtitles (as well as English audio). The devs have rebuilt the whole game in UE4 Engine and added additional sound effects and graphics as well as additional translations (inluding German which I did myself). I have described it a bit in another thread where you can find comparision screenshots as well. The original Ether One UDK version is now a bonus item in your library.

Here you can find my other post with more detailed informations.

Oh, that makes sense! Thanks for clearing this up. I was just confused because there was no announcement or official comment anywhere.