Hi, there have been some problems with the current installation image of Geany 1.29 for OS X which caused it couldn't be started on older OS X versions - for more info, see https://github.com/geany/geany/issues/1335 I've just re-built and re-uploaded a new image that should fix the problem. You can get it at the usual place here: http://download.geany.org/geany-1.29_osx.dmg There have been no other changes so if everything worked for you, there's no need to download this version. A bonus feature of this build is that it should run on OS X as old as 10.6. Cheers, Jiri