Version 5.1 of zsh has been released and is available as a download from Sourceforge as well as the master zsh site, http://www.zsh.org/pub/
Note that in addition to the tar.gz files (for people who like traditional compression schemes) there are also tar.xz rather than tar.bz2 files (for people how like the latest compression scheme). The latter are uncompressed with "tar xJf", rather than "tar xjf".
This is an upgrade from 5.0.8. A two-digit release number has been picked as a simplification: it does not imply that this version is substantially different from the previous release.
There are a couple of interesting enhancements. In particular, there is now support for genuine assignment syntax after keywords such as "local" and "typeset"
Also, text pased within X terminals is safer as it appears as characters rather than raw input (so in particular you need to hit Return to execute it). Note that slight tweaks to this may occur in future
versions, though the general scheme is likely to remain the default.See the README and NEWS files for more.
There are also many bug fixes, notably better protection against race conditions in interrupts (typically, but not necessarily, those resulting from exiting child processes), as well as enhancments to completion functions.
Thank you to the many people who have contributed or otherwise helped.
Please report problems to zsh-workers@zsh.org (mailto:zsh-workers@zsh.org)