Support for SteamTools support is removed. Their infrastructure has been dead for a while now.
If you were using SteamTools, you'll want to move to a supported unlock solution (OpenSteamTool built from source, from the latest commit or HubcapTool).
Fixed: stats in CR UI not listing for R2/S3 provider users.
Linux CR now has a dedicated option to enable Achievement sync and a warning about it being experimental.
More substantive changes are coming. Going to look at the Google Drive provider and change a behavior to make it easier to restore old data. Also, I've been working on a Mac Steam unlock client. It's been going well.