Tutorial for codesigning Blender releases on OSX ( atm. i do manually when needed ): 1. You need to obtain the certificates for blender foundation, they can bw pulled at Apple developer account for BF 2. Run the following commands from terminal: codesign -s --resource-rules /release/darwin/codesigning_rules_blender.plist --deep codesign -s --resource-rules /release/darwin/codesigning_rules_player.plist --deep 3. Checking: codesign -vv codesign -vv The result should be something like: /blender.app: valid on disk /blender.app: satisfies its Designated Requirement /blenderplayer.app: valid on disk /blenderplayer.app: satisfies its Designated Requirement Jens Verwiebe