There is some info here:

http://info.scratch.mit.edu/Source_Code

Karl


On Tue, Jan 29, 2013 at 5:30 PM, Bert Freudenberg <bert@freudenbergs.de> wrote:
On 2013-01-29, at 16:02, Stéphane Rollandin <lecteur@zogotounga.net> wrote:

> Thanks !
>
> Do you think there are differences between 2.8 and MIT 0.9.4 ?
>
> Stef

Most likely. Born-in-the-wool Smalltalkers like John treat Squeak as a whole personal system and touch up whatever is needed to make it better suit their purpose. I'm pretty sure you would find changes all over the place.

- Bert -