So, as some of you may have noticed... The last, and apparently final shared
Engine/Game update (Manniversary... don't even get me started) moved
Counter-Strike Source off of Source 2009 and into it's own engine branch.
This was a deliberate change.

What does this mean for the end user? No more shared binaries between HL2DM,
DOD:S, and TF2. If you use MM:S, SM (including extensions), ES, or any sort
of VSP, the author will now have to compile a binary built against the CSS
"SDK" instead of Source 2009. This is needlessly increasing work for plugin
authors. Another issue with this is after the 12th of November, 2007 until
the 23rd of June, 2010. Fixes were being backported days, weeks, or even
months after they're more then public knowledge and are exploited. A decent
example of this is sv_soundscape_printdebuginfo, after 5 months it was back
ported to Episode 1... That was really gross then, who would want it to
happen again?

Just to reiterate how serious this is. On June 25th of 2010, Valve fixed the
.dll loading exploit on Source 2009 (Which included CSS, thank god). To this
date (I just remembered this existed from looking at old patch notes for OB,
there's probably a number of exploits that were never fixed), the exploit
still functions perfectly on L4D, L4D2 (requires -insecure on the client),
and of course the older engines. The exploit allows for servers to run
arbitrary code on clients. This can include anything from infecting them via
the built in lobby system (they'd have to join a server, if it's a versus
match even better). From there, the .dll could do something as simple as
inviting friends to join them to play a match, then start downloading and
executing code on the client whenever it wants. If CS:S wasn't part of the
Source 2009 pact, I highly doubt it would have received this fix (HL2DM sure
didn't have it for three months until it was ported). Everyone knows how bad
GarrysMod 9 had gotten when GMod 10 came out, this can be L4D today and we
would be none the wiser.

What do we gain from this change? Slightly faster download speeds for HL2DM,
DODS, and TF2 as CSS is no longer part of the update package (Mind you it's
not like CSS was not the game getting the constant material/model
updates...). Sure, this is nice. However, killing Counter-Strike Source
before CS:GO comes out really can't be the goal here, right?

VoiceHook is already broken because of the last required update, and needs
to be built against the old SDK for server admins to be able to use it.
Everything other plugin will follow as the Source 2009 engine continues to
be updated.

Hate me if you want for saying this, I haven't told a lie though.
Kyle.
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