I have just released ZopeTree 1.3. ZopeTree is a light-weight tree implementation, mainly for use with ZPT. It is intended to be simpler to use than ZTUtils.Tree. Version 1.3 brings the following changes: * Setting a cookie with ZopeTree is optional now. Simply pass set_cookie=0 to the ZopeTree constructor. * Fixed a security hole in the tree state decompressing mechanism. Previous versions were vulnerable to a denial of service attack using large tree states. Thanks go to Jamie Heilman for reporting the bug and Toby Dickenson for providing a fix. There is no explicit README file, but you should be able to read everything from the interfaces. The product also comes with two example PageTemplates. You may download ZopeTree at: http://www.zope.org/Members/philikon/ZopeTree Regards, Phil