On the 22nd & 23rd June its the 3rd International GPLv3 Conference which will be held in Barcelona.
The focus will be on the GPLv3 – this is from the press release
The goal of the GPL is to ensure that recipients of GPL covered software are free to examine it, to modify it, to pass on copies, and to distribute modifications. Version two of the GPL was released fifteen years ago, in 1991. The new version is being drafted to account for changes in the legal and technical environment in which software licences operate.
The main changes in version three are to minimise the harm of software patents, to prevent Digital Restrictions Management from being used against software users, and to make the licence compatible with certain classes of other Free Software licences.
Speakers will include, amongst others, Richard Stallman and Eben Moglen.