That would be nice.

For the v1.7.4 i've found this srpm:
https://copr-be.cloud.fedoraproject.org/results/opuk/synergy/fedora-rawhide-x86_64/00116765-synergy/synergy-1.7.4-1.fc24.src.rpm

Avaiable in this copr https://copr.fedoraproject.org/coprs/opuk/synergy/.

It's the only one avaiable or there is something better?

This bug appears to have been reported against 'rawhide' during the Fedora 24 development cycle.
Changing version to '24'.

More information and reason for this action is here:
https://fedoraproject.org/wiki/Fedora_Program_Management/HouseKeeping/Fedora24#Rawhide_Rebase

synergy-1.7.6-1.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-7c9e55e214

synergy-1.7.6-1.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2016-5c3c49281f

synergy-1.7.6-1.fc23 has been pushed to the Fedora 23 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-2016-5c3c49281f

synergy-1.7.6-1.fc24 has been pushed to the Fedora 24 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-2016-7c9e55e214

synergy-1.7.6-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

synergy-1.7.6-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.