Hi all, I'm in the process of trying update the revisions of wx (part of wxHaskell) on hackage. I'm getting an error I find slightly surprising: "400 Error in upload The dependency 'build-depends: base' does not specify an upper bound on the version number. Each major release of the 'base' package changes the API in various ways and most packages will need some changes to compile with it. The recommended practise is to specify an upper bound on the version of the 'base' package. This ensures your package will continue to build when a new major version of the 'base' package is released. If you are not sure what upper bound to use then use the next major version. For example if you have tested your package with 'base' version 2 and 3 then use 'build-depends: base >= 2 && < 4'." In this case, we have the following in wx.cabal Library if flag(splitBase) build-depends: base >= 3, wxcore >= 0.12.1.1, stm else build-depends: base < 3, wxcore >= 0.12.1.1, stm Is this a bug, or am I doing something stupid? I should point out that this builds perfectly on my machine. Regards Jeremy