Version 1.2.3 was a tiny hotfix patch released after Version 1.2.2. It was released on February 23rd, 2017.
The patch addressed a bug concerning low framerate for a small number of affected players.
It was announced and changes were detailed on the developer blog shortly before release.
We’ll be pushing a (very small) 1.2.3 hotfix update to the stable app. This update fixes a rare bug that caused a few players to have very low framerate with the “Multiplayer via Steam Friends” option enabled. For most players this should make no difference.
- ↑ http://playstarbound.com/23rd-february-space-station-14/