iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Mac OS X Snow Leopard Does Require Intel Processors
The full list of general requirements include:
- Mac computer with an Intel processor
- 1GB of memory
- 5GB of free disk space
- DVD drive for installation
Apple first announced that they were switching from PowerPC to Intel processors in June 2005 and finally completed the transition in August 2006. Since then, all shipping Macs have contained Intel-based processors. Apple's Mac OS X Snow Leopard will be released in September.