The IOS team has fixed some of the main bugs that were in IOSS Beta 1.0 and created a server side patch. That means you only need to install this patch if you run a server. The zip version contains files for both a Windows and a Linux (for you convenience) and the tar contains only the linux server code.

Changelog:

• Fixed crash on throw in.
• Fixed clock after sv_restarts.
• Fixed offside bug.
• Fixed team say.
• Removed ability for non admins to issue some server commands.
• Changed mp_teamlist to use a space as delimiter. For some reason this didn't work well with rcon, although it worked fine on listen servers. e.g. mp_teamlist "SCOTLAND ENGLAND", don't use ; between the names anymore.
• Changed "ball shield" back to the way it worked in ios 4.0 (stops being pushed off pitch during throw ins).
• Blocked some console command possible exploits.
• Added Logs for goals, own goals and assists.
• Reset goal count and possession at map end. Should fix -1 goals etc.
• Fixed penalties not showing on scoreboard.
• Removed slide tackle when ball not in play etc.
• Removed slide tackle off pitch.

Grab it from here at SteamFriends.com.