Hello, The website PHP is devised in such a way that documentation URLs are automatically rewritten to point to the specific Boost version most recently shipped. For instance, if I type the following in my browser: http://www.boost.org/libs/smart_ptr/smart_ptr.htm I get the following redirection: http://www.boost.org/doc/libs/1_36_0/libs/smart_ptr/smart_ptr.htm This is fine in that it allows us to keep a historic record of documentation across Boost versions. My little complain is that the automatic redirection makes it all too easy to inadvertently use version-specific URLs when referring to Boost docs in external contexts (blogs, forums, etc.) This is in my opinion unfortunate because such URLs are stuck in time and do not reflect the evolution of the library. Of course it's easy to get to the most recent info, but untrained eyes might miss the detail and take the version-specific URL for the most updated reference. A simple Google search (http://tinyurl.com/42ufrn ) reveals that these version-specific URLs are beginning to proliferate. Maybe is it a good idea to not apply this redirection and instead serve the most updated docs for non-version-labeled URLs? Thank you, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo