Hi, It seems the acceptance of Phoenix V3 has raised the question on how to handle the deprecation of compilers and libraries again. I believe it is important to reach a consensus and to make an official statement regarding it, as it's important for both users and developers. Below I've assembled a set of questions I would like to see answered: Compilers: 1. What minimum of compilers should a library support for it to be considered for review? 2. What is necessary for a compiler previously supported to be removed from this list? Libraries: 3. Should library X be marked as preferred over library Y, since multiple solutions to a similar problem are becoming more common and the right choice might not be obvious to a user? 4. Can an existing library be marked "deprecated"? 5. Once deprecated will a library be removed from boost after X releases? 6. Should a backwards compatible solution exist for a library to be removed? Personally I believe dead branches should, in due time, be cut from the tree for boost to remain at the forefront of C++ development. Especially now the number of libraries is growing, we should aim for clarity. Regards, Jeroen Habraken