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Is bash-completion orphaned?

Last non-NMU upload happened 3 years ago and version in sid is 2.1.

Development seems to be moved over to Github (https://github.com/scop/bash-completion/). Latest release there is 2.7 from last July.

Why does Alioth site for bash-completion still exists and why doesn't it mention the Github repo? Why did Debian packaging activity stop?