Hummingbird was updated to version 1.7.2, from version 1.7.1. Changelog:

• New: Minification logging
• New: Performance reports for subsites
• Enhance: PHP 7.2 compatibility
• Enhance: Better support for installs where SSH of FTP filesystem methods are used
• Enhance: Texts in tooltips and notices in minification module
• Enhance: Improve dashboard performance module UI
• Enhance: Page caching will now add die() to the header of cached files and logs to improve security
• Enhance: Better integration with Divi theme
• Enhance: Minification UI
• Enhance: Uptime UI
• Fix: Page caching will not be halted forever if minification scan fails to finish
• Fix: Minification not enqueuing some scripts correctly (better support for Google maps, Google reCAPTCHA)
• Fix: Page cache not updated when comments added on multisite subdirectory installs
• Fix: Layout issues on IE11
• Fix: Hummingbird causing Internal server 500 error on some hosts
• Fix: Typos on browser caching page and membership modal