This document describes how to convert freeciv 2.6 compatible soundset to freeciv 3.0 compatible ones.
Capability[]
Capability string of soundspec file must be changed.
[soundspec] options = "+Freeciv-3.0-soundset"
Event tag rename[]
Event tag e_unit_win is renamed to e_unit_win_def. Update reference to it in the soundspec.
New event tags[]
For the new events, new event sound tags can be added if the soundset aims to be complete. New tags added in freeciv-3.0 are e_my_unit_did_heal and e_my_unit_was_healed.