When iOS instructor Mohammad Azam started teaching Apple's new mobile operating system earlier this year, he found himself skipping lectures in his lesson plan because features were broken.
"Apple used to be very strict," said Azam, an iOS 10 instructor at The Iron Yard in Houston. "It used to be highly polished. Every developer will say that after Steve Jobs you're looking at a downward trajectory."
A Twitter poll of 26 of his contacts, however, surprised him: Developers were split on whether Apple's software quality had gone down "tremendously" over the years, inciting a lively debate.
The debate is nothing new — Apple has laid out an ambitious software vision that has both presented massive opportunities and garnered criticism over the past couple of years. But the stakes are swelling, as investors increasingly count on software as a growing share of Apple's business. Some developers say there's a long way to go.