AMP was updated to version 0.5, from version 0.4.2. Changelog:
- Whitelist Sanitizer: Replace Blacklist Sanitizer with a whitelist-based approach using the AMP spec
- Image Dimensions: Replace fastimage with fasterimage for PHP 5.4+. Enables faster downloads and wider support
- Embed Handlers: Added support for Vimeo, SoundCloud, Pinterest and PlayBuzz
- Analytics: UI for easier addition of analytics tags
- Fix: parse query strings properly
- Fix: Old slug redirect for AMP URLs
- Fix: Handle issues with data uri images in CSS
- Fix: Add amp-video js for amp-video tags
- Fix: Output CSS for feature image
- Fix: Fix attribute when adding AMP Mustache lib
- Fix: Various documentation updates
- Fix: PHP Warnings from register_customizer_ui
- Fix: Coding Standards