Harden installer activation against ACC file locks

This commit is contained in:
2026-08-11 15:37:52 +02:00
parent b32cc61e43
commit 08626197be
15 changed files with 389 additions and 23 deletions
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# Changelog
## [2.1.3] - 2026-08-11
### Added
- Bounded retry/backoff diagnostics for transient `Directory.Move` locks caused by the Windows loader, antivirus or endpoint protection.
- A SHA-256-verified copy activation fallback limited to first-time installations with no existing active version.
- Regression coverage for transient recovery, permanent new-install fallback and permanent update denial without mutation.
- ACC incident analysis and an AI maintainer handoff document.
### Changed
- Install, update, rollback and uninstall directory moves now use eight bounded attempts over at most 19.75 seconds.
- Setup completion logs record the activation method and preservation state of both backup and staging directories.
- Product and setup version advanced to 2.1.3.
## [2.1.2] - 2026-08-11
### Added
- Complete XML documentation for types and methods across application, setup, packager and regression projects, including parameters, generic type parameters and return values.