iOS 27 introduces several enhancements to Apple Notes, focusing on organization, navigation, and integration with other Apple features. A new 'Insert Divider Line' option allows users to visually separate content within notes, improving structure. Section links are now supported, enabling the creation of internal navigation within longer notes by linking directly to headings and subheadings.

The integration with Siri is a significant upgrade, allowing users to seamlessly add information to new or existing notes using voice commands. This extends to processing and reformatting text, and adding it directly to Notes. Previously, Siri offered limited Notes capabilities, but this new integration represents a substantial improvement.

Further enhancing its utility, Apple Notes now offers improved Markdown support. Pasting Markdown-formatted text automatically converts it to rich text, and users can copy note content as Markdown through a new option in the edit menu. Additionally, Notes benefits from upgrades to the Image Playground app, allowing for the creation of high-quality, photorealistic images within notes using advanced AI models, with generated images watermarked with Synth ID.

Beyond these major features, iOS 27 brings UI refinements, including a refreshed app icon and 'Liquid Glass' updates for buttons and menus, along with updated icons for shared folders and notes.