Feature comparison

What a modern framework should have and who has it today. It is not a ranking: a smaller framework needs fewer things, and the rows do not weigh the same. It is for seeing where we are strong and where we are missing something. Versions: .

"Source" column: V verified in this session (by running the code or reading the installed package), D official documentation, G general knowledge not checked here: review the G rows before quoting them. The full analysis, with priorities, is in the analysis against the others.