Currently, the spine-ue4 runtime supports up to Unreal Engine 5.3, with specific instructions to handle asset naming due to changes introduced by Epic in UE 5.3. There is no specific timeline mentioned for support of Unreal Engine 5.4. However, given the history of updates and the ongoing support for newer versions, it is likely that support for UE 5.4 will be added in the future. For now, you can follow the existing guidelines for UE 5.3 to manage your assets and keep an eye on updates from the Spine team.
