Comment by teddyh

A warranty is about the code which already exists, and whether the code is fit for a particular purpose, etc. (all legal terms). The warranty disclaimer in free software licences all say basically “Although this specific version of the software is meant to be helpful to you for a certain purpose, you can’t sue the developer if there’s a bug or an omitted feature, since we don’t make any guarantee that it will work.” But this is not what I was talking about. I was talking about disclaiming any implied support, security bugfixes, and future development, all three of which are usually heavlily implied (or outright stated) to be available in official project information (such as on an official web site).