If you are updating manually using a zip file, always back up your World folder. Moving from earlier versions to 1.08 sometimes caused issues with custom item placements.
For players on mid-range PCs, this version introduced better frame stability when building massive, multi-story floating fortresses. File: Raft.v1.08.zip ...
If you're looking for a specific or a mod installation guide for this file, let me know! To help you further, are you looking to: Install a specific mod contained in that zip? Troubleshoot a crash occurring with version 1.08? Find the official changelog for this release? If you are updating manually using a zip