It was just six weeks ago when Squeak 4.0 was pushed out.
"This version combines the licence change occurring in the 4.0 release with the development work that has been going on while the re-licensing process took place," according to the release announcement.
The latest version includes integration of Cog's closure implementation, improved user interface look and feel, new anti-aliased fonts, core library improvements and advances in modularity.
"One key focus for this release," The Weekly Squeak said, "was to address the issues that have been known to frustrate developers using Squeak for the first time. A much improved set of UI widgets, the new menu bar including the fast search control, integrated help, improved test coverage, more class and method comments, and integrated syntax highlighting all make the system more accessible."
You can download Squeak 4.1 here.