I have several c-language extensions to postgres that I distribute. I generally have to recompile my code with a new release of postgres, although sometimes it appears that it functions properly (passes my tests at least) without a recompile. Since my users are all on various releases of postgres, from 7.4.x to 8.1.x, I would like to minimize the number of versions of my code that I need to maintain and distribute. Presumably, the only reason I would HAVE TO recompile is when some header file changes. Is there any guarantee that header files DO NOT change, for example from 7.4.5 to 7.4.8 or even 7.4.12? Can I assume that header file changes only occur between major pg changes, such as 7.3 to 7.4, or 8.0 to 8.1? TJ
