Hello, all. I'm currently in the process of writing a compiler front-end for GCC, doing all my work using the 3.4.3 sources. However, I took a look at the website and it says that the release date for version 4.0 is April 2005... very soon, in other words. So my question is this: Should I stop working with the 3.4 branch and try to write my front-end for 4.0 instead? Will the front-end interface change a lot between 3.4 and 4.0? Thank you, Simon