This is mainly for my own purposes, so I don’t have to hunt through Bugzilla and Peter Beverloo’s blog to find the one I’m looking for.

Feature Webkit Rev. landed Firefox Rev. landed Notes
Line Grid 76197 105176 N/A N/A Kyoto Proposal
New Flexbox 62048 N/A 666041 N/A  
Grid Layout 60731 N/A 616605 N/A  
Regions 57312 N/A 674802 N/A  
Calc 16662 N/A Finished  
Scoped Stylesheets 49142 N/A 508725 N/A  
CSS Filter Effects #68469 N/A N/A N/A  
CSS Shaders #71392 N/A N/A N/A  
Web Components #52962 N/A N/A N/A  
CSS Variables #85580 N/A #442864? N/A