Making BIAB a 64-bit app is not an easy task to accomplish. BIAB is written in Apple's Carbon framework which allowed a transition from OS 9 to OS X. So actually most of the BIAB is based on a last century code. Carbon doesn't support 64-bit mode. So in order to make it 64-bit, PG-Music developers would have to transition to Cocoa framework on which all modern Mac and iOS apps are based on which means rewriting BIAB completely from the ground up. Whether or not PG-Music developers are ready to do so we don't know. Rewriting BIAB for modern Cocoa framework will likely break compatibility with older macOSes which means many customers with older OSes will not be pleased about.

But the bottom line here is eventually PG-Music will have to do this transition. Otherwise many customers will have to stick forever on their current Macs with High Sierra or run Windows in Virtual Machines and use Windows version of BIAB.

Last edited by v1597psh; 06/14/17 11:30 PM.
iMac 27" Late 2015 macOS Sierra, M-Audio Profire 2626, M-Audio-Octane