<center><img src="http://media.steampowered.com/steam/news/10534/backtoschool.jpg?t=1367522436"></center>
Thanks to the efficiencies we were able to achieve with Linux, we skipped Valve time and are delivering the L4D2 Beta Linux build today as planned. The Beta build not only allows Linux owners to play the game natively, it is also the testing ground for our new Extended Mutation System.

If you currently own Left 4 Dead 2, You should see “Left 4 Dead 2 Beta” in your library. If it doesn’t show up, restart Steam. This is a complete build of Left 4 Dead 2, so the build is as large as the current game.

You also receive access to the Left 4 Dead 2 Beta Authoring tools and Left 4 Dead 2 Beta Dedicated Server. This will allow you to start working with EMS.

The Beta version also contains updated Windows and Mac clients, so even if you are not running under Linux you can help by testing the Beta.

Current changes in this build include:
- Server operators can now specify whether or not custom content is allowed when playing on their servers. This can be set on a per game mode basis - see cfg/addonconfig.cfg for details.

- Fixed main menu not refreshing after workshop add-ons have been loaded. Custom UI skins should display correctly now.

- Reworked add-on management to improve stability and properly support custom mutations.

- Prevent an intermittant crash when browsing the add-ons screen.

To give us feedback on the Beta, please use <a href="http://steamcommunity.com/app/550/discussions/4/">this brand new forum.</a>

If you aren’t up for downloading the beta, we are trying a new experiment with our friends over at Pinion. On the additional official servers they are hosting, we have added four new community campaigns so that you can get the stock L4D2 experience on some great community maps. It was tough work playing so many great custom campaigns as we narrowed it down to four. To quote Daniel from Pinion, "Diescraper has some of the best levels I've played in L4D2!!". Yes it does… And with campaigns only a mouse click away thanks to the Workshop, make sure to give them a try this weekend.

Here are the current list of supported Campaigns.
<a href="http://steamcommunity.com/sharedfiles/filedetails/?id=121116980&searchtext">Diescraper Redux</a>
<a href="http://steamcommunity.com/sharedfiles/filedetails/?id=121086524&searchtext">Urban Flight</a>
<a href="http://steamcommunity.com/workshop/filedetails/?id=121115793">Back to School</a>
<A href="http://steamcommunity.com/sharedfiles/filedetails/?id=141632373&searchtext">City 17</a>

Thanks to everyone who voted on the campaigns in the workshop and helped us make our selections. If you have any feedback on the servers or campaigns, please let us know in the forums.

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Thanks to the efficiencies we were able to achieve with Linux, we skipped Valve time and are delivering the L4D2 Beta Linux build today as planned. The Beta build not only allows Linux owners to play the game natively, it is also the testing ground for our new Extended Mutation System.

If you currently own Left 4 Dead 2, You should see “Left 4 Dead 2 Beta” in your library. If it doesn’t show up, restart Steam. This is a complete build of Left 4 Dead 2, so the build is as large as the current game.

You also receive access to the Left 4 Dead 2 Beta Authoring tools and Left 4 Dead 2 Beta Dedicated Server. This will allow you to start working with EMS.

The Beta version also contains updated Windows and Mac clients, so even if you are not running under Linux you can help by testing the Beta.

Current changes in this build include:
- Server operators can now specify whether or not custom content is allowed when playing on their servers. This can be set on a per game mode basis - see cfg/addonconfig.cfg for details.

- Fixed main menu not refreshing after workshop add-ons have been loaded. Custom UI skins should display correctly now.

- Reworked add-on management to improve stability and properly support custom mutations.

- Prevent an intermittant crash when browsing the add-ons screen.

To give us feedback on the Beta, please use this brand new forum.

If you aren’t up for downloading the beta, we are trying a new experiment with our friends over at Pinion. On the additional official servers they are hosting, we have added four new community campaigns so that you can get the stock L4D2 experience on some great community maps. It was tough work playing so many great custom campaigns as we narrowed it down to four. To quote Daniel from Pinion, "Diescraper has some of the best levels I've played in L4D2!!". Yes it does… And with campaigns only a mouse click away thanks to the Workshop, make sure to give them a try this weekend.

Here are the current list of supported Campaigns.
Diescraper Redux
Urban Flight
Back to School
City 17

Thanks to everyone who voted on the campaigns in the workshop and helped us make our selections. If you have any feedback on the servers or campaigns, please let us know in the forums.

<center><img src='http://media.steampowered.com/steam/news/10451/peng.jpg?t=1366749389'></center>
The L4D2 Beta is mutating. Not content to just be the testing ground for the new <a href='http://www.l4d.com/blog/post.php?id=9915'>Extended Mutation System</a>, we will be adding Linux to the Beta. And not content with the number of testers in the Beta, we will also be opening up the Beta to all L4D2 owners.

Huh, what?

The L4D2 Beta build is a separate download from the main game. This is where we are testing new features to the game – currently we are testing <a href='http://www.l4d.com/blog/post.php?id=9915'>EMS</a>. Starting next week, we will be testing Linux there as well.

This code churns more frequently than the main game depot, so if you are bandwidth constrained, you might want to wait for the changes to move to the main game.

If you are playing the Beta game, you can only connect to other players in the Beta and to Beta servers.

Next week it will appear in your library alongside the main L4D2 game.

You do not need to enter a code to gain access and it is totally voluntary to download and participate in the Beta.

For modders currently in the Beta, now would be a good time to update your current work and get ready for a whole bunch of new testers.

For players, not only is the Linux build new, but the Window and Mac versions are also updated, so we need plenty of non-Linux testing as well.

When the Beta expands next week, we will post on how you can help give feedback and participate in the Beta.

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The L4D2 Beta is mutating. Not content to just be the testing ground for the new Extended Mutation System, we will be adding Linux to the Beta. And not content with the number of testers in the Beta, we will also be opening up the Beta to all L4D2 owners.

Huh, what?

The L4D2 Beta build is a separate download from the main game. This is where we are testing new features to the game – currently we are testing EMS. Starting next week, we will be testing Linux there as well.

This code churns more frequently than the main game depot, so if you are bandwidth constrained, you might want to wait for the changes to move to the main game.

If you are playing the Beta game, you can only connect to other players in the Beta and to Beta servers.

Next week it will appear in your library alongside the main L4D2 game.

You do not need to enter a code to gain access and it is totally voluntary to download and participate in the Beta.

For modders currently in the Beta, now would be a good time to update your current work and get ready for a whole bunch of new testers.

For players, not only is the Linux build new, but the Window and Mac versions are also updated, so we need plenty of non-Linux testing as well.

When the Beta expands next week, we will post on how you can help give feedback and participate in the Beta.

<img src="http://media.steampowered.com/steam/news/10332/lepotitsa_blog.jpg?t=1365026193">
To celebrate the <a href="http://store.steampowered.com/agecheck/app/221040/">release of Left 4 Dead 2 content in RE6 today</a>, we are releasing two more RE6 special reskins for L4D2. <a href="http://steamcommunity.com/sharedfiles/filedetails/?id=136540931">Ogroman</a> is a skin for the Charger and <A href="http://steamcommunity.com/sharedfiles/filedetails/?id=136541592">Lepotitsa</a> (pictured) is a replacement for the Boomer. These two join <a href="http://steamcommunity.com/sharedfiles/filedetails/?id=136304810">Napad</a>, the Tank replacement in our <a href="http://steamcommunity.com/sharedfiles/filedetails/?id=136792679">Official Resident Evil 6 Collection</a>.

There are still a few more weeks to submit your <a href="http://steamcommunity.com/workshop/browse/?appid=550&requiredtags[]=Resident+Evil+6">character skins</a> before we “review” them and see which ones we like the best. Who knows what the best ones might get besides being added to the official collection...

While you are busy at work on those, take a few minutes to vote for your favorite campaign. We will be featuring a new community campaign on our servers in a few weeks.

To celebrate the release of Left 4 Dead 2 content in RE6 today, we are releasing two more RE6 special reskins for L4D2. Ogroman is a skin for the Charger and Lepotitsa (pictured) is a replacement for the Boomer. These two join Napad, the Tank replacement in our Official Resident Evil 6 Collection.

There are still a few more weeks to submit your =Resident+Evil+6]character skins before we “review” them and see which ones we like the best. Who knows what the best ones might get besides being added to the official collection...

While you are busy at work on those, take a few minutes to vote for your favorite campaign. We will be featuring a new community campaign on our servers in a few weeks.

<img src="http://media.steampowered.com/steam/news/10323/bill.jpg?t=1364933126">
We have released the first of the <a href="http://store.steampowered.com/agecheck/app/221040/">Resident Evil 6</a> replacement creatures into the <a href="http://steamcommunity.com/workshop/browse/?appid=550">L4D2 workshop</a>. You can have Napad replace the current Tank skin by simply going to its <A href="http://steamcommunity.com/sharedfiles/filedetails/?id=136304810">Workshop page</a> and clicking subscribe. Why subscribe instead of download? Because if we make an update to the skin, everyone instantly gets the new updated version. By subscribing, you will always have the latest version.

If you check the <a href="http://steamcommunity.com/workshop/browse/?appid=550&requiredtags[]=Resident+Evil+6">Resident Evil 6 tab</a> on the Workshop, you can see a few of the very first of the RE6 entries. Is anyone surprised <a href="http://steamcommunity.com/id/splinks">Splinks</a> was already working on some? The best entries will be included in a special Resident Evil 6 collection and might even get a few goodies thrown their way.

Past that, testing is continuing on both the Left 4 Dead 2 version of Linux and the Beta version of L4D2 which includes our new Extended Mutation System. Both are testing well and the team is embracing 8 hour days of play testing.

The artwork used for this blog post was created by <A href="http://steamcommunity.com/id/agentgraven">AgentGraven</a>. You can check it and other community created art in the <a href="http://steamcommunity.com/app/550/images/">Artwork tab</a>.

We have released the first of the Resident Evil 6 replacement creatures into the L4D2 workshop. You can have Napad replace the current Tank skin by simply going to its Workshop page and clicking subscribe. Why subscribe instead of download? Because if we make an update to the skin, everyone instantly gets the new updated version. By subscribing, you will always have the latest version.

If you check the =Resident+Evil+6]Resident Evil 6 tab on the Workshop, you can see a few of the very first of the RE6 entries. Is anyone surprised Splinks was already working on some? The best entries will be included in a special Resident Evil 6 collection and might even get a few goodies thrown their way.

Past that, testing is continuing on both the Left 4 Dead 2 version of Linux and the Beta version of L4D2 which includes our new Extended Mutation System. Both are testing well and the team is embracing 8 hour days of play testing.

The artwork used for this blog post was created by AgentGraven. You can check it and other community created art in the Artwork tab.

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This trailer shows the RE6 mode The Mercenaries: No Mercy, which pits Coach, Ellis, Nick and Rochelle against Resident Evil enemies, plus brings in the Witch and Mini-Tank from L4D2. This mode and the L4D2 characters and monsters are included for free in the PC version of <a href="http://store.steampowered.com/app/221040/">Resident Evil 6</a>.

When you are done watching the video, make sure to get to work on your Resident Evil 6 character for the <a href="http://steamcommunity.com/workshop/browse/?appid=550">L4D2 workshop</a> or if modeling isn’t your thing – sit back and wait for the Resident Evil characters and creatures to invade L4D2 next month.

<object width="560" height="315">





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This trailer shows the RE6 mode The Mercenaries: No Mercy, which pits Coach, Ellis, Nick and Rochelle against Resident Evil enemies, plus brings in the Witch and Mini-Tank from L4D2. This mode and the L4D2 characters and monsters are included for free in the PC version of Resident Evil 6.

When you are done watching the video, make sure to get to work on your Resident Evil 6 character for the L4D2 workshop or if modeling isn’t your thing – sit back and wait for the Resident Evil characters and creatures to invade L4D2 next month.