There are currently no open bugs.

"ruby-concurrent" versions published in Ubuntu

Hirsute (1.1.6+dfsg-3): universe/misc
Groovy (1.1.6+dfsg-3): universe/misc
Focal (1.1.6+dfsg-3): universe/misc
Bionic (1.0.5-1): universe/misc
Xenial (1.0.0-1): universe/misc