There is an ongoing outage on the primary CPAN mirror. It is possible to work around the issue by using MetaCPAN as a mirror.
Merge ready branches to the release branches
Module Install Instructions
To install Git::Release, copy and paste the appropriate command in to your terminal.
cpanm Git::Release
perl -MCPAN -e shell
install Git::Release
For more information on module installation, please visit the detailed CPAN module installation guide.