The Squeak community is pleased to announce the release of version
4.6.  More than a year in development, this release provides
significant upgrades in core function and performance, as well as many
improvements to the IDE resulting in more productive use and
development.

Specific notes for the release are here:

   http://wiki.squeak.org/squeak/6192

The main website, including download links is here.

   http://www.squeak.org

Please note, 4.6 is an interim stepping stone to the 5.0 release which
is planned for immediate release.