Apple's iOS 26.4 beta introduces significant updates across six iPhone apps, with Apple Music receiving the most substantial overhaul. The update brings Playlist Playground, an AI-powered playlist creation tool that requires an AI-compatible iPhone, along with a redesigned fullscreen album and playlist interface.

Reminders gains a dedicated 'Urgent' smart list, making it easier to track time-sensitive tasks. The feature, introduced in iOS 26.2, now lets users quickly access all marked tasks from one central location. Apple Podcasts receives an 'enhanced video podcast experience' with seamless switching between audio and video, offline downloads, and automatic quality adjustment powered by HLS technology.

Apple TV makes subtitle customization more accessible by adding style options directly within the app, while Health introduces a new sleep bedtime highlight and restores Blood Oxygen readings to the Vitals graph. Freeform finally gets premium features promised with Apple Creator Studio, including a Content Hub with curated media and AI image generation using OpenAI's models. These updates demonstrate Apple's continued focus on integrating AI capabilities and improving user experience across its ecosystem.