Stellaris - Hotfix 1.0.2 released!
There is a brand new update out for Stellaris which fixes a number of things (including exploits) as well as improving performance. Take a look below for the full list of changes.
Patch Notes
- Fixed exploits in species customization which allowed players ignore limits to trait and ethic points etc.
 - Improved performance for war demands view
 - 'Hostile fleet detected' is now only shown when the fleet is heading towards one of your colonized systems, preventing massive spam in large wars.
 - UI fixes in server browser
 - It is now possible to connect directly to a server id
 - Fixed CTD when renaming sectors
 - Fixed CTD when fleets were traveling too far away from the galaxy center
 - Fixed CTD when a country was destroyed as a result of combat
 - Fixed CTD caused by ships shooting at ships that are not visible
 - Fixed an issue where you could not build space ports with some screen resolutions
 - It is no longer possible to build robot pops on uncolonized planets
 - Game pads are now turned off by default as this caused stuttering on some configurations. Game pads can be enabled again with the -gamepad launch option or the "gamepad" console command
 
Also they are aware of an issue with trying to join a friend's game that's password protected not working. To bypass this they suggest using the Direct Join option as a workaround for now.
Source: http://steamcommunity.com/games/281990/announcements/detail/923613802360032318