A Console Simulator has been added, which means you don’t have to start the whole game just to test your scripts. Source Script Assembler 1.1 has also been released.
These are the downloads you’re looking for
Scent Tree’s SDK 10.3.13
The main package for Scent Tree’s SDK. Also contains HLExtract.
Scent Tree’s SDK 10.3.13 Source Code
The source code for Scent Tree’s SDK. Released under GPLv3.
Source Script Assembler 1.1
The Source Script Assembler. As of version 1.1, addition, subtraction, division, multiplication, binary shifts, binary logic and logic is implemented.
TF2 English All Voice-over captions
Unless you intend to spend hours typing up the subtitles, you should probably download this. This was last verified on the 13th of March, 2010 (at 12:08 AM) to be up to date with current voice-overs.