It's been longer than that. Core 2 Duos are 64 bit chips, and there were core 2 duo Macs releas e in late 2006, so it's been almost 13 yesrs. The 32 bit suppor

It's been longer than that. Core 2 Duos are 64 bit chips, and there were core 2 duo Macs releas e in late 2006, so it's been almost 13 yesrs. The 32 bit support is actually a bit of a red herring here; the bigger issue for some is Apple dropping support for Carbon, a 32 bit only API made to ease porting of classic MacOS apps from the 80s and 90s to OS X, and itself deprecated in 2012. I guess Apple could have created a 64 bit version, but it also seems reasonable to expect software developers to have rewritten effected software in that timespan. Carbon was originally a compromise for companies not wanting to learn an entire new OS (NeXTSTEP) and API/libraries when updating their apps for OS X -- the fact some apps still need it today is kind of mind boggling. Then, I suppose the Win32 API has been stable-ish for far longer.