Matthew Aslett argues
that the popularity of copyleft licenses is in decline. “This
last chart illustrates something significant about the previous dominance
of strong copyleft licenses: that it was achieved and maintained to a
significant degree due to the vendor-led open source projects, rather than
community-led projects. One of the main findings of our Control and
Community report was the ongoing shift away from projects controlled by a
single vendor and back toward community and collaboration. While some might
expect that to mean increased adoption of strong copyleft licenses – given
that they are associated with collaborative development projects such as
GNU and the Linux kernel – the charts above indicate a shift towards non
copyleft.“