Nothing OS 4.0 rolls out to Phone 3a and 3a Pro with major upgrades: What's new and fixed?

Nothing has expanded the Android 16-based Nothing OS 4.0 rollout to the Phone 3a and Phone 3a Pro, bringing new AI tools, visual upgrades, Glyph improvements, and major camera enhancements. The update is limited for now, with a wider release expected after initial testing.