Squeak 4.0 is within sight. With this release, the four-year
relicensing project of the Leadership team will be complete. We
will be able to incorporate under SFLC, and Pharo will be one
step closer to a 1.0 release.

Squeak 4.0 will be the first official squeak release with no
code under SqueakL; everything in the .image, .changes, and
.sources files will be under either the MIT license or the
Apache license. 

I've done the first step and done a full audit, using Yoshiki's
tools [1], of all the code
in Squeak 3.10.2, with the exception of four packages:
- Monticello
- SUnit, TestRunner, and SUnitImproved
- Universes
- Traits

I also applied all of yoshiki's etoys changes to 3.10.2. The
algorithm that Yoshiki seemed to follow when cleaning etoys is:
- If the method can be easily deleted, delete it
- Otherwise, use the historical image [1] to revert to the
  latest version before the problematic author
- Fix any bugs this causes

I think we can use the same procedure. Perhaps Yoshiki will
comment.

So, to help with the relicense, grab the historical image[1],
check out the license audit [2], leave a note on mantis about
what you think you'll work on, and start rolling out change
sets. For your convenience, all of the license audits are
included both in the relicensing tools download and on mantis.
I'll try to keep both up to date as we progress with the
relicense

I'll also be looking for an official license statement from the
authors of Traits and Universes; if those can be unambiguously
shown to be MIT-licensed, it will save me a couple of audits.
SUnit and Monticello already have enough problems that I know
they are not clean.

[1] The tools I've been using to do the relicense:
    http://ftp.squeak.org/4.0alpha/squeak4.0-relicensingTools.zip
    see also:
    http://lists.squeakfoundation.org/pipermail/squeak-dev/2008-September/131586.html
    http://www.squeaksource.com/MethodAuthorship.html

[2] The 4.0 relicense mantis issue:
    http://bugs.squeak.org/view.php?id=6989

-- 
Matthew Fulmer -- http://mtfulmer.wordpress.com/