Wait for the newest TFS release, it will probably be released today.
If you want to update your previous version, you only need to download the newest TFS, replace the data folder and config.lua, also don't forget to download the dll files and extract them to your ot folder, edit the config.lua and it's done, if you're having a older version like 8.31, I suggest you to open your map and save the map as 8.4 version.
If you need a hoster, go to to the job section.