# FreeCAD 1.2 Web Upgrade and Rollback Report

Browser test policy: Chrome only. Firefox, WebKit and Safari are excluded by the execution iron rule.

| Path | Result | Old package preserved | FCStd preserved |
|---|---|---:|---:|
| compatible-success | pass_compatible_upgrade_and_document_preserved | yes | yes |
| incompatible-version | pass_incompatible_version_rejected_previous_preserved | yes | yes |
| corrupt-package | pass_all_corruption_cases_rejected_previous_preserved | yes | yes |

Overall result: **pass_upgrade_rollback_paths_have_independent_evidence**

Uncovered scenarios are listed in the machine-readable report and remain outside this release contract.