I updated to 10.10.4 last night. This morning while starting Archicad I got this message. "Archicad license was not found. Code meter error:230". I had to download the drivers again, but everything is working fine now. I've never had that happen before, so just be aware.
AC19(9001), 27" iMac i7, 12 gb ram, ATI Radeon HD 4850 512mb, OS 10.12.6