iOS 26 has arrived: Everything to know about the free iPhone software update

Here is a 168-word summary of the key information from the news article: Apple has released iOS 26, the latest free software update for iPhones. The update includes a new "Liquid Glass" design language with a translucent, minimalist look across the interface. Key new features include improved Phone and Messages apps, live translation during calls/texts, the ability to create polls in group chats, and enhanced visual search capabilities. The update also brings changes to iPadOS, including new multitasking and windowing features. AirPods are also getting updates like studio-quality audio recording and live translation. iOS 26 is compatible with iPhone models from 2019 onward. Apple has also released iOS 18.7 to address security issues for older iPhones. The update is available for free starting today, September 15. While Siri improvements are delayed, Apple is reportedly working on an AI chatbot to rival ChatGPT. Overall, iOS 26 brings a visual refresh and a host of new productivity and communication features to iPhones and iPads.