v5.1.2 is a small stability patch for Ultimate Updater 5.1.
Fixed:
- Self-update handling for release archives with a top-level directory.
- Misleading tar write errors during archive validation.
- Includes the previously approved WebUI guest-overview alignment polish.
No new features are included in this patch release.
A clean dedicated Proxmox VE host was not available for an additional live fresh-install validation; installer and archive paths were covered by automated and existing test validation.