The license for bowtie was changed from "Artistic 2.0 and zlib and
GPLv3 and LGPLv3+"
to "Artistic 2.0 and zlib" [1].
Because the bundled dependency SeqAn [2] (licence: "GPLv3 and
LGPLv3+") was deleted on the latest version.
[1]
https://src.fedoraproject.org/rpms/bowtie/c/1862384d6d0359faae46be5410157...
[2]
http://www.seqan.de/
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Jun | He - His - Him