Know this...I've only had my NAS for just over 2 weeks
- There is no supported rollback process. Although there are documented processes, it's basically YOYO.
- No Synology package offers a complete "bare metal" restore. The backup apps are primarily for personal files, with support for certain (not all) Synology packages. Tread cautiously through new releases. Be sure @Rusty hasn't fallen through the ice before you track with him too closely.