[AGiorgetti]

Addresses #90.

Summary

• Deliver automatic open-generic startup warnings through the root ILoggerFactory, preserving category, event ID and registration metadata without creating a temporary logging scope.
• Make only optional warning delivery best-effort: factory resolution, logger creation, IsEnabled and Log failures do not prevent returning the provider. Native ownership of any activated dependencies stays with that provider until the caller disposes it.
• Keep provider construction, validation, strict open-generic rejection and diagnostic exclusions unchanged.
• Document the approved compatibility change: direct ILogger<ServiceProviderFactory> registrations no longer supply these warnings; use standard ILoggerFactory logging, such as AddLogging. Warning-delivery errors are nonfatal and warnings can be lost.

Verification

• Test-first: the 52-case regression set produced 26 failures and 26 passes before the fix on each of net8.0, net9.0 and net10.0. Includes native ownership controls.
• Full local suite: 972/972 pass on each matching .NET 8.0.31, 9.0.20 and 10.0.12 runtime.
• Native DI 10.0.0 hot-cache regression: 100 interleaved enumerations after observed native compilation pass on each modern runtime.
• Release solution build passes, including netstandard2.0 library and net472 test compilation. Two existing net472 package-support warnings remain.
• Regression coverage includes standard AddLogging, keyed/unkeyed warning metadata, unactivated custom scoped loggers, missing logger factories, each warning failure stage, sync/async/dual owned dependencies, caller-owned instances, exactly-once disposal and unchanged strict/validation controls.
• Independent review found no correctness or scope blockers; targeted independent net10 run passed 79/79 affected tests.
• Exact-head Windows CI passed for ff643d70f02ca4d0b564c333de5e3bdb6dad2ace: 972/972 tests on each of net472, net8.0, net9.0 and net10.0, plus all four native hot-cache probes. Successful run.
• The first Windows run exposed one net472-only assertion mismatch in AggregateException.Message; a test-only follow-up now inspects the full exception. The production fix is unchanged.

Prepared with OpenAI Codex.

[AGiorgetti]

Implementation and local verification are complete for head f8bfbc883d4d9a9e17b2091a37c7d2958998d5ab.

• The production change removes the temporary logging scope and limits the catch to optional warning delivery through the root ILoggerFactory.
• The approved behavior was tested first: 26 failing / 26 passing cases before the change on each modern runtime, then all 52 cases pass.
• Exact published-head Release build and full tests pass: 972/972 on each of net8.0, net9.0 and net10.0. Native DI 10.0.0 hot-cache probes also pass on all three.
• Independent review found no correctness or scope blockers. The direct-ILogger compatibility change and nonfatal warning policy are documented in README, XML comments and the unreleased changelog.

Windows CI (including net472 execution) is still being checked; the PR remains draft.

Prepared with OpenAI Codex.

[AGiorgetti]

The first Windows run passed all 972 tests on net8.0, net9.0 and net10.0. net472 passed 971/972; its sole failure was a new validation assertion relying on AggregateException.Message to include inner-exception details.

Head ff643d70f02ca4d0b564c333de5e3bdb6dad2ace changes only that assertion to inspect error.ToString(), matching existing validation tests. Independent review confirmed the test-only correction. The full modern suites remain green locally; exact-head Windows CI is being rerun. Production code is unchanged.

Prepared with OpenAI Codex.

[AGiorgetti]

Final verification is green for exact head ff643d70f02ca4d0b564c333de5e3bdb6dad2ace.

Windows CI run 37481613894 passed:

• Release build
• 972/972 tests on each of net472, net8.0, net9.0 and net10.0
• Native DI 10.0.0 hot-cache regression on all four targets, including 100 interleaved enumerations after observed native compilation

The workflow tested this head merged into current develop e135918f06c2d0f645076506c005f471d3a9d892 (merge ref 8091fb1c9d8a234e006cdbc80b615535d02a6b4c). Local exact-head modern suites and hot-cache checks also pass. Independent review found no correctness or scope blockers, including the net472 assertion correction.

Ready for review; leaving this PR in draft for the agreed review/closure gate.

Prepared with OpenAI Codex.