September 2017

New sections

• Offline states describes how to customize apps for users without internet access

Updates for Android O

• Updated guidance on categorizing notifications into channels and a new messaging template
• How to create icons for Android O
• Simplified guidance on how settings are grouped, titled, and styled

April 2017

Significant updates

• Updated guidance on the Material Design color system, usability, and a brand new Color Tool for creating color palettes and testing accessibility
• Text fields expands on usage basics and introduces text field boxes for increasing text field discoverability
• Bidirectionality has added resource links to developer guidance on right-to-left (RTL) icons

December 2016

New sections

• Platforms discusses when and how to adapt apps to Material Design, and when to adhere to platform conventions
• App shortcut icons contains specs on how to create app shortcut icons for the home screen
• Help and feedback describes how to indicate, craft, and place help content

Significant updates

• Bidirectionality has updated guidance on mirroring UI content and icons in right-to-left (RTL) languages
• Accessibility contains new guidance on sound, controls, labeling elements, and testing
• Selection includes detailed examples on item selection, toggling, and styling