On Squeak Mailing list Matthew Fulmer just wrote (we stressed some lines):

[…]

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.

[…]