If extensions are a breeding ground for potential new standard fields, it would be helpful for us to define what graduation entails. Extensions are often compared to x- attributes in headers or CSS properties, though many of these are widely considered to be a mistake by some in the community. IMO, the worst case scenario is that an extension graduates, the early adopting event providers must double send all extension data, and the final customer code must be prepared to handle the same semantic data from two different locations.
If extensions are a breeding ground for potential new standard fields, it would be helpful for us to define what graduation entails. Extensions are often compared to x- attributes in headers or CSS properties, though many of these are widely considered to be a mistake by some in the community. IMO, the worst case scenario is that an extension graduates, the early adopting event providers must double send all extension data, and the final customer code must be prepared to handle the same semantic data from two different locations.