The first official post-release update to Sins of a Solar Empire has been released. Below is what's new.  You'll need to update in order to play on ICO.

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Gameplay / Balance:
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-Tutorials moving into bad states at random fixed.
-Siege frigate survivability decreased.
-Pirate raid frequency decreased slightly.
-Later stage missions to destroy ships and structures have had their expiry times increased.
-Clairvoyance: duration increased from 30, 45 60 seconds per level to 50, 100, 150 seconds.
-Guidance: cooldown changed from 20, 15, 10 seconds per level to 20 seconds at all levels.
-Guidance: ability cooldown rate changed from +20%, +35%, +50% per level to +40% at all levels.
-Guidance: duration changed 20 seconds at all levels to 15, 30, 45 seconds per level.
-Reverie: friendly units will no longer auto-acquire enemies under the effects of reverie as attack targets.
-Reverie: duration increased from 15, 20, 25 seconds per level to 20, 30, 40 seconds.
-Gravity Warhead: range decreased from 7000 to 6000 at all levels.
-Gravity Warhead: cooldown increased from 18, 16, 14 seconds per level to 25 seconds at all levels .
-Gravity Warhead: antimatter cost raised from 80 to 100 at all levels.
-Gravity Warhead: duration changed from 12 seconds at all levels to 12, 15, 18 seconds per level.
-Gravity Warhead: Speed reduction changed from 15%, 30%, 45% per level to 30%, 45%, 60% .
-Gravity Warhead: Acceleration reduction changed from 20%, 40%, 60% per level to 60%, 80%, 120%.
-Nano-Disassember: range increased from 4500 to 6000 at all levels.
-Nano-Disassember: antimatter cost decreased from 85 to 75 at all levels.
-Ion Bolt: antimatter cost increased from 65 to 85 at all levels.
-Ion Bolt: cooldown from 9, 11, 13 seconds per level to 10, 12, 14 seconds.
-Shield Projection: radius of effect increased from 2500 to 5000.
-Game update rate change hooked to - and = buttons (singleplayer only).
-Two new pirate-less maps.
-First tutorial now handles players spending their ability point before they were intended to and thus not being able to spend it when instructed.
-Phasic Transmissions research is now effective even at max fleet supply research.
-Reduced Phasic Transmissions supply bonus from 20% down to 15%.
-Stopgap fix for market exploit until new market dynamics are fully tested.


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Graphics:
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-Shield projection's bubble less opaque.
-Various new ICO art.
-Fix bug where skybox is always the same.
-New Advent bomber icons to better differentiate them from fighters.


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Networking / Multiplayer:
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-Phantom games causing "Rejected by Host" error fixed.
-Multiplayer lobby screens now have Map Designer tab.
-Whisper functionality for ICO
-Refactored join game screen.
-Fix for not seeing friend's games.
-New chat friendly ICO font.
-ICO user names are now sorted.
-Self and friends are colored in ICO channel player list.
-Events for players entering and leaving channels.
-ICO nows preserves history when changing channels.
-ICO logged in user count now displayed. This number will only update when you change channels or login.
-Added some default lobby names.
-Reorganized numbered lobbies to increment sequentially as they fill.
-Added notification of what channel you are in.
-Fix for rare multiplayer lobby crash when host leaves a game in ICO.
-Various new ICO message strings.
-ICO server now ignores case when searching for channel names.


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UserInterface / HUD:
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-Added counter descriptions for all frigates and fighters.
-Game menu now mapped to F10 by default instead of Esc so people can repeatly press Esc to close any submenu they be in w/o going all the way to the escape menu.
-Fix rare bug in group selection.
-Various strings cleaned up.
-Hooked up proper double clicking to text lists so clickng on something already selected doesn't try to join a game when it shouldn't.
-Hooked up ico-player name lists (both selecting player and chat lobby player names) to double clicking.
-Added infocard keybindings for quick-select buttons.