Version 4.2.6 of zsh has been uploaded to ftp.zsh.org/pub and to Sourceforge. The changes are minor: mostly bugfixes, with a few enhancements to completion functions.
In case you haven't been following development, you should be aware that a development version 4.3.1 will be released soon (before Christmas, unless I get really tied up) which will contain support for multibyte character sets such as UTF-8 in the line editor (though there's not yet not much support in the main shell). This appears to be working quite well already.
(4.3.0 was the version number used during initial development on the branch, so doesn't correspond to a release.)
