PCWorxLA:
If you do any-non Apple related software development (like for an Arduino), simply don't use the latest and greatest (from Apple's POV)...Ralf
This is only an option if they don't fix any security vulnerabilities or if you don't care about security at all.
And sorry, I still don't get it why its an issues of Apple and I have no indication that there is anything messed up regarding the latest 10.9.4 update. Can you point me to any note about this topic? If you are in software business, maybe you know about MS and there automatic updates on patch day or by using WSUS. This is how they deploy the latest updates.