Latest Fedora delivers 1.25 version. Upstream released 1.26. When you have free time, please upgrade it.
An enhancement (Unicode 10) release suitable for Fedora ≥ 29 (Perl 5.28 introduced Unicode 10).
perl-Unicode-Collate-1.27-1.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2019-d86f78fbfc
perl-Unicode-Collate-1.27-1.fc29 has been pushed to the Fedora 29 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-d86f78fbfc
perl-Unicode-Collate-1.27-1.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.